Device for preparing powder for additive manufacturing through multi-wire plasma atomization

Abstract

The utility model relates to the technical field of powder manufacturing, in particular to a device for preparing powder for additive manufacturing through multi-wire plasma atomization, which comprises a machine body and a plasma torch, the machine body is provided with a working cavity and a mounting groove communicated with the working cavity, a mounting block is inserted in the mounting groove, and the plasma torch is arranged in the mounting groove. The plasma torch is arranged on the installation block, the plasma torch is arranged in the working cavity and used for atomization, the plasma torch can penetrate through the installation groove, and an assembling assembly is arranged between the machine body and the installation block and used for assembling the installation block on the machine body. The atomization device has the effect of improving the disassembly convenience of the atomization mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder manufacturing technical field especially is a kind of multi-filament plasma atomization preparation powder device for additive manufacturing. BACKGROUND

[0002] Metal powder is important material for preparing high-purity additive manufacturing, in prior art, metal powder is generally prepared by plasma atomization device, plasma atomization method is mainly used to produce various high-activity powders, the method uses high-speed, high-temperature plasma gas shot by plasma nozzle as atomization medium to make metal wire into powder, specifically, plasma atomization device includes raw material supply mechanism, straightening mechanism, preheating mechanism and atomization mechanism, raw material supply mechanism provides atomization raw material, atomization raw material is straightened by straightening mechanism, then preheated by preheating mechanism, finally atomized by plasma torch of atomization mechanism, i.e. metal powder is formed.

[0003] In prior art, plasma torch is set in machine body sealed chamber as atomization mechanism, linear material heated and corrected by straightening mechanism and preheating mechanism is plasma atomized, but plasma torch can have problems after long time use, need to be maintained or replaced, and plasma torch disassembly in prior art needs to split whole machine body, then enter sealed chamber to disassemble plasma torch, operation is very inconvenient, atomization mechanism is not convenient to disassemble. UTILITY MODEL CONTENTS

[0004] In order to improve the convenience of disassembling atomization mechanism, the application provides a multi-filament plasma atomization preparation powder device for additive manufacturing.

[0005] The multi-filament plasma atomization preparation powder device for additive manufacturing provided by the application adopts the following technical scheme:

[0006] A multi-filament plasma atomization preparation powder device for additive manufacturing, comprising a machine body and a plasma torch, the machine body is provided with a working cavity, the machine body is provided with a mounting groove communicating with the working cavity, a mounting block is inserted in the mounting groove, the plasma torch is arranged on the mounting block, the plasma torch is arranged in the working cavity and used for atomization, the plasma torch can pass through the mounting groove, an assembly assembly is arranged between the machine body and the mounting block, and the assembly assembly is used for assembling the mounting block on the machine body.

[0007] By adopting the technical scheme, when the plasma torch needs to be replaced and maintained, the assembly assembly is disassembled, the mounting block is taken out of the mounting groove, so that the plasma torch is separated from the working cavity through the mounting groove, and the plasma torch is disassembled; when mounting, the mounting block is inserted into the mounting groove so that the plasma torch is inserted into the working cavity, and the mounting block is assembled on the machine body through the assembly assembly, so that the operation is simple and convenient, and the convenience of disassembling the atomization mechanism is improved.

[0008] Preferably, the assembly assembly comprises an assembly block and an assembly bolt, the assembly block is arranged on the mounting block and abuts against the machine body, and the assembly bolt is used for assembling the assembly block on the machine body.

[0009] By adopting the technical scheme, the assembly bolt assembles and fixes the assembly block on the machine body, thereby completing the mounting of the mounting block, facilitating the mounting and dismounting of the mounting block, and improving the convenience of disassembling the atomization mechanism.

[0010] Preferably, the mounting block is provided with a sliding groove, the plasma torch is provided with a sliding block, the sliding block is inserted into the sliding groove and can slide in the sliding groove, the mounting block is provided with a driving assembly, and the driving assembly is used for driving the sliding block to slide.

[0011] By adopting the technical scheme, the driving assembly drives the sliding block to slide, thereby driving the plasma torch to slide, so that the plasma torch can move close to the wire to be processed, and better atomization is achieved, thereby improving the convenience of use.

[0012] Preferably, the driving assembly comprises a driving motor and a driving screw rod, the driving screw rod is rotationally arranged in the sliding groove, the driving screw rod penetrates through the sliding block and is threadedly connected with the sliding block, the driving motor is arranged on the mounting block, and the rotating shaft of the driving motor is connected with the driving screw rod.

[0013] By adopting the technical scheme, after the driving motor is started, the driving motor drives the driving screw rod to rotate, thereby driving the sliding block to move in the sliding groove, so as to drive the plasma torch to move, and the operation is simple and convenient, and the use is facilitated.

[0014] Preferably, the mounting block is provided with a motor groove communicating with the sliding groove, and the driving motor is arranged in the motor groove.

[0015] By adopting the technical scheme, the driving motor is arranged in the motor groove, so as to reduce the possibility of damage caused by the driving motor colliding with the inner wall of the mounting groove when the mounting block is dismounted from the mounting groove, thereby improving the durability.

[0016] Preferably, the sliding block is provided with a distance sensor for measuring the distance between the sliding block and the inner wall of the sliding groove, the machine body is provided with a controller connected with the driving motor and the distance sensor, and the controller is used for controlling the driving motor to start or stop according to the detection result of the distance sensor.

[0017] By adopting the above technical scheme, after the driving motor is started, the sliding block is driven to move by the driving screw rod, and when the distance between the sliding block and the inner wall of the sliding groove is less than the set lower limit value, the controller controls the driving motor to stop, so as to realize automatic closing, improve the stability of the movement of the sliding block, and move the plasma torch to the set position, thereby improving the convenience of use.

[0018] Preferably, the mounting block is provided with an indicator lamp connected with the controller, and the controller is used for controlling the indicator lamp to be on or off according to the detection result of the distance sensor.

[0019] By adopting the above technical scheme, when the plasma torch needs to be disassembled, the driving motor is started to drive the sliding block to slide, and the plasma torch is retracted, and when the plasma torch is retracted below the mounting block, the distance between the sliding block and the inner wall of the sliding groove is greater than the set upper limit value, the controller controls the driving motor to stop, and controls the indicator lamp to flash at the same time, so as to remind the staff that the plasma torch is retracted below the mounting block at this time, and the mounting block and the plasma torch can be taken out, thereby reducing the possibility that the plasma torch is not retracted below the mounting block and collides with the inner wall of the mounting groove during disassembly, improving the durability and the convenience of disassembly.

[0020] Preferably, the top wall of the mounting block is provided with a handle.

[0021] By adopting the above technical scheme, the handle facilitates taking out the mounting block from the mounting groove, and facilitates disassembling the atomization system.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. By providing the machine body, the plasma torch, the working cavity, the mounting groove, the mounting block and the assembly component, the plasma torch is arranged in the working cavity of the machine body for atomization, when the plasma torch needs to be disassembled for replacement or maintenance, the assembly component is used to remove the assembly between the mounting block and the machine body, the mounting block is disassembled from the mounting groove, and the plasma torch is taken out from the mounting groove, so that the operation is simple and convenient, and the disassembly of the atomization mechanism is facilitated.

[0024] 2. By providing the assembly block and the assembly bolt, the assembly bolt is used to fix the assembly block on the machine body, the assembly block is facilitated to be mounted and disassembled, the mounting block and the plasma torch arranged on the mounting block are disassembled, and the convenience of replacing the plasma torch, which is the atomization structure, is improved.

[0025] 3. By setting the sliding block, sliding groove, drive motor and drive screw, starting the drive motor to drive the drive screw to rotate, thereby driving the sliding block to slide in the sliding groove, thereby driving the plasma torch to slide out, so that the plasma torch is closer to the straightened and preheated wire, and the atomization effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 is a whole schematic diagram of a multi-wire plasma atomization preparation powder device for additive manufacturing provided by the embodiment of the present application.

[0027] Fig. 2 is a sectional view for embodying the internal structure of the working cavity.

[0028] Fig. 3 is a control block diagram of a multi-wire plasma atomization preparation powder device for additive manufacturing provided by the embodiment of the present application.

[0029] Mark explanation: 1, machine body; 11, working cavity; 12, mounting groove; 13, straightening mechanism; 14, preheating mechanism; 15, controller; 2, plasma torch; 21, sliding block; 211, distance sensor; 3, mounting block; 31, sliding groove; 32, motor groove; 33, handle; 34, indicator light; 4, drive assembly; 41, drive motor; 42, drive screw; 5, assembly assembly; 51, assembly block; 52, assembly bolt. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the drawings Figs. 1-3 The present application will be further described in detail.

[0031] The embodiment of the present application discloses a multi-wire plasma atomization preparation powder device for additive manufacturing. Referring to Figs. 1 to 2It comprises a body 1 and a plasma torch 2, the body 1 is internally provided with a working cavity 11, the bottom of the body 1 is provided with a pipeline communicating with the working cavity 11 to recover powder, the plasma torch 2 is arranged in the working cavity 11 as an atomizing mechanism to perform atomization, the body 1 is provided with a straightening mechanism 13 and a preheating mechanism 14, the straightening mechanism 13 passes through the roller and makes the wire pass through the long cylindrical straightening device to be straightened, and the long cylindrical straightening device is internally provided with an electric heating wire (not shown in the figure) to constitute the preheating mechanism 14 to preheat. The top of the body 1 is provided with a mounting groove 12 communicating with the working cavity 11, the mounting groove 12 is internally fitted and inserted with a mounting block 3, the plasma torch 2 is arranged on the mounting block 3 and can pass through the mounting groove 12, the plasma torch 2 is arranged directly below the mounting block 3, and the length of the plasma torch 2 is slightly smaller than the length of the mounting block 3. An assembly assembly 5 is arranged between the body 1 and the mounting block 3, and the assembly assembly 5 is used to assemble the mounting block 3 on the body 1. The assembly assembly 5 comprises an assembly block 51 and an assembly bolt 52, the assembly block 51 is annular and fixedly arranged on the outer sidewall of the mounting block 3 and can abut against the top wall of the body 1, and the assembly bolt 52 is used to assemble the assembly block 51 on the body 1. The assembly bolt 52 is unscrewed, and the mounting block 3 and the mounting groove 12 are taken out, so that the plasma torch 2 is taken out of the working cavity 11, the operation is simple and convenient, and the convenience of disassembling the atomizing mechanism is improved.

[0032] In order to improve the convenience of use, with reference to Fig. 1 and Fig. 2 A pair of handles 33 are fixedly arranged on the top wall of the mounting block 3. A sliding groove 31 is transversely arranged on the bottom wall of the mounting block 3 along the length direction, and the plasma torch 2 is fixedly provided with two sliding blocks 21 which are fitted and inserted into the sliding groove 31, the sliding blocks 21 can be fitted and slid in the sliding groove 31, and the mounting block 3 is provided with a driving assembly 4 which is used to drive the sliding blocks 21 to slide. The driving assembly 4 comprises a driving motor 41 and a driving screw rod 42, the driving screw rod 42 is rotationally arranged in the sliding groove 31 and threadedly penetrates the sliding blocks 21, the bottom wall of the mounting block 3 is provided with a motor groove 32 communicating with the sliding groove 31, the driving motor 41 is fixedly arranged in the motor groove 32, and the rotating shaft of the driving motor 41 is coaxially fixedly connected with the driving screw rod 42. The driving motor 41 is started to drive the driving screw rod 42 to rotate, thereby driving the plasma torch 2 to move, so that the nozzle of the plasma torch 2 is close to the outlet of the straightening mechanism 13 to improve the atomization effect, the operation is simple and convenient, and the convenience of use is improved. In another embodiment, in order to further facilitate the replacement of the plasma torch 2, the sliding blocks 21 are mounted on the plasma torch 2 through bolts.

[0033] In order to improve the convenience of use, with reference to Fig. 2 and Fig. 3, the body 1 is provided with a controller 15 connected with the signal of the driving motor 41, the sliding block 21 away from the driving motor 41 is fixedly provided with a distance sensor 211 connected with the signal of the controller 15 on the side wall away from the driving motor 41, the distance sensor 211 is used for measuring the distance between the sliding block 21 and the inner wall of the sliding groove 31, so as to obtain the position of the plasma torch 2. The top wall of the mounting block 3 is fixedly provided with an indicating lamp 34 connected with the signal of the controller 15, the controller 15 is used for controlling the opening and closing of the driving motor 41 according to the detection result of the distance sensor 211, and the controller 15 is used for controlling the on and off of the indicating lamp 34 according to the detection result of the distance sensor 211. By setting the controller 15 to control the opening and closing of the driving motor 41 according to the detection result of the distance sensor 211, the convenience of use is improved, the position of the plasma torch 2 is detected by the distance sensor 211, and the indicating lamp 34 is controlled to flicker by the controller 15, so as to remind the staff that the plasma torch 2 moves to the lower side of the mounting block 3, and the possibility of damage caused by the collision between the plasma torch 2 and the inner wall of the mounting groove 12 during disassembly is reduced.

[0034] The implementation principle of the embodiment of the application is that when the plasma torch 2 needs to be disassembled, the driving motor 41 is started to drive the driving screw 42 to rotate, so as to drive the plasma torch 2 to move, when the plasma torch 2 moves to the mounting block 3 directly below, the detection value of the distance sensor 211 is greater than the set upper limit value, at this time, the controller 15 stops the driving motor 41 and controls the indicating lamp 34 to flicker. After the assembly bolts 52 are loosened, the mounting block 3 and the plasma torch 2 on the mounting block 3 can be taken out of the mounting groove 12, and the disassembly is completed, without the need to disassemble the body 1 and let the staff enter the working cavity 11 to disassemble the plasma torch 2, and the convenience of disassembling the atomizing mechanism is improved.

[0035] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A multi-filament plasma atomization apparatus for producing a powder for additive manufacturing, characterized by: The utility model provides a plasma torch atomizer, which comprises a body (1) and a plasma torch (2), the body (1) is provided with a working cavity (11), the body (1) is provided with a mounting groove (12) communicated with the working cavity (11), a mounting block (3) is inserted in the mounting groove (12), the plasma torch (2) is arranged on the mounting block (3), the plasma torch (2) is arranged in the working cavity (11) and is used for atomizing, the plasma torch (2) can pass through the mounting groove (12), an assembly assembly (5) is arranged between the body (1) and the mounting block (3), and the assembly assembly (5) is used for assembling the mounting block (3) on the body (1).

2. A multi-wire plasma atomization apparatus for producing powder for additive manufacturing according to claim 1, wherein: The assembly assembly (5) comprises an assembly block (51) and an assembly bolt (52), the assembly block (51) is arranged on the mounting block (3) and abuts against the body (1), and the assembly bolt (52) is used for assembling the assembly block (51) on the body (1).

3. The multi-wire plasma atomization apparatus for making powder for additive manufacturing of claim 1, wherein: The mounting block (3) is provided with a sliding groove (31), the plasma torch (2) is provided with a sliding block (21), the sliding block (21) is inserted into the sliding groove (31) and can slide in the sliding groove (31), and the mounting block (3) is provided with a driving assembly (4) for driving the sliding block (21) to slide.

4. The multi-wire plasma atomization apparatus for making powder for additive manufacturing of claim 3, wherein: The driving assembly (4) comprises a driving motor (41) and a driving screw rod (42), the driving screw rod (42) is rotationally arranged in the sliding groove (31), the driving screw rod (42) penetrates the sliding block (21) and is threadedly connected with the sliding block (21), and the driving motor (41) is arranged on the mounting block (3) and is connected with the driving screw rod (42) through a rotating shaft.

5. A multi-wire plasma atomization apparatus for producing powder for additive manufacturing according to claim 4, wherein: The mounting block (3) is provided with a motor groove (32) communicated with the sliding groove (31), and the driving motor (41) is arranged in the motor groove (32).

6. The multi-wire plasma atomization apparatus for making powder for additive manufacturing of claim 4, wherein: The sliding block (21) is provided with a distance sensor (211) for measuring the distance between the sliding block (21) and the inner wall of the sliding groove (31), the body (1) is provided with a controller (15) signal-connected with the driving motor (41) and the distance sensor (211), and the controller (15) is used for controlling the driving motor (41) to start and stop according to the detection result of the distance sensor (211).

7. A multi-wire plasma atomization apparatus for producing powder for additive manufacturing according to claim 6, wherein: The mounting block (3) is provided with an indicating lamp (34) signal-connected with the controller (15), and the controller (15) is used for controlling the indicating lamp (34) to be bright or dark according to the detection result of the distance sensor (211).

8. The multi-wire plasma atomization apparatus for making powder for additive manufacturing of claim 1, wherein: The top wall of the mounting block (3) is provided with a handle (33).

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