Laser cladding powder mixing device

Abstract

The utility model discloses a laser cladding powder mixing device which comprises a mixing box, an air inflation assembly is arranged outside the mixing box, and the technical scheme is characterized in that through the arrangement of the air inflation assembly, when laser cladding powder is mixed, a hand wheel is rotated, an air outlet valve is opened, and the air inflation assembly is started; nitrogen enters the mixing box through the gas outlet pipe, the connector and the gas outlet hose, and the pressure gauge can detect the pressure during nitrogen conveying, so that the laser cladding metal powder in the mixing box can be in an inert gas atmosphere, some metal powder can be prevented from being oxidized when the laser cladding metal powder is mixed, and the laser cladding metal powder can be prevented from being oxidized when the laser cladding metal powder is mixed. The material mixing device is used for preventing the influence on the quality of a final finished product, and is used for solving the problems that some powder can be oxidized and the quality of the final finished product is influenced because some metal powder used for laser cladding can be oxidized in the material mixing process and a material mixing device in a comparison patent is difficult to provide a relatively stable atmosphere environment for the powder.

Description

Technical Field

[0001] The utility model relates to the field of mixing devices, in particular to a laser cladding powder mixing device. Background Art

[0002] A laser cladding powder mixing device is a special mixing device, mainly used for the powder mixing process in laser cladding technology. Laser cladding is a high-precision surface coating technology. By spraying metal or alloy powder onto the substrate material and locally melting the powder with a laser beam, a coating layer is formed.

[0003] Application No.: CN201921927221.8 discloses a laser cladding powder mixing device. The materials inside the first feeding cylinder and the second feeding cylinder are conveyed by the screw conveyors on both sides, and their scales are observed, so as to know the added amount and add them evenly.

[0004] However, some metal powders used in laser cladding may be oxidized during the mixing process. It is difficult for the mixing device in the comparative patent to provide a relatively stable atmosphere environment for the powder. Therefore, some powders may be oxidized, affecting the quality of the final product. For this reason, we propose a laser cladding powder mixing device. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a laser cladding powder mixing device. By setting an inflation component, when mixing the laser cladding powder, turn the handwheel to open the air outlet valve, so that nitrogen enters the mixing tank through the air outlet pipe, the joint and the air outlet hose. The pressure gauge can detect the pressure during the nitrogen delivery, so that the laser cladding metal powder inside the mixing tank is in an inert gas atmosphere, thus preventing some metal powders from being oxidized when mixing the laser cladding powder and preventing the quality of the final product from being affected.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A laser cladding powder mixing device includes a mixing tank. An inflation component is arranged outside the mixing tank, a mixing component is arranged inside the mixing tank, and a pretreatment component is connected to the upper end of the mixing tank.

[0008] The inflation assembly includes a nitrogen tank. The upper end of the nitrogen tank is fixedly communicated with an air outlet pipe. An air outlet valve is fixedly connected to the outside of the air outlet pipe. A handwheel is rotatably connected to the upper end of the air outlet valve. The left end of the air outlet pipe is fixedly communicated with a connector. A pressure gauge is fixedly connected to the outside of the connector. The left end of the connector is threadedly connected with an air outlet hose. The upper end of the mixing tank is fixedly connected with a connecting sleeve. The air outlet hose passes through the connecting sleeve and is threadedly connected with the connecting sleeve. The air outlet hose extends into the mixing tank and is movably connected to the mixing tank.

[0009] By setting the inflation assembly, when mixing the laser cladding powder, rotate the handwheel to open the air outlet valve, so that nitrogen enters the mixing tank through the air outlet pipe, the connector and the air outlet hose. The pressure gauge can detect the pressure during the nitrogen delivery, so that the laser cladding metal powder inside the mixing tank is in an inert gas atmosphere, thus preventing some metal powders from oxidizing when mixing the laser cladding powder and preventing the quality of the final product from being affected.

[0010] Further, the pretreatment assembly includes a screening box located above the mixing tank. A connecting column is fixedly connected to the lower end of the screening box, and the connecting column is fixedly connected to the mixing tank. A sealing cover is threadedly connected to the upper end of the screening box. A vibrator is fixedly connected to the lower end of the screening box.

[0011] By setting the pretreatment assembly, the vibrator drives the screening box to vibrate, so that powders with different particle sizes can be screened, and the particle sizes of the laser cladding powders finally mixed are kept consistent, thus facilitating more uniform mixing of the laser cladding powders.

[0012] Further, a connecting frame is movably connected inside the screening box. A screen is fixedly connected to the inner wall of the connecting frame. A chute is opened at the upper end of the connecting frame. Guide rods are fixedly connected to both the left and right sides inside the connecting frame. Sliders are slidably connected to the outside of the guide rods. Springs are movably connected to the outside of the guide rods. One end of the spring is fixedly connected to the connecting frame, and the other end of the spring is fixedly connected to the slider. The slider passes through the chute and is slidably connected to the chute.

[0013] Further, an insertion block is fixedly connected to the top of the slider. The insertion blocks are symmetrically distributed left and right. Insertion slots are opened on the inner wall of the screening box, and the insertion blocks are movably connected inside the insertion slots, and the insertion blocks are adapted to the insertion slots.

[0014] Further, a feed hopper is fixedly communicated with the upper end of the sealing cover. A discharge pipe is fixedly communicated with the lower end of the screening box, and the discharge pipe is fixedly communicated with the mixing tank. A discharge valve is fixedly connected to the outside of the discharge pipe.

[0015] Furthermore, the mixing component includes a bracket which is fixedly connected to the upper end of the mixing tank. The bracket is in an L-shaped structure. A driving motor is fixedly connected to the lower end of the bracket. The lower end of the output end of the driving motor is fixedly connected to a transmission shaft. A first pulley is fixedly connected to the outer part of the transmission shaft. A second pulley is rotatably connected to the upper end of the mixing tank. A connecting belt is rotatably connected to the outer parts of the first pulley and the second pulley. A driven shaft is fixedly connected to the lower end of the second pulley.

[0016] Furthermore, both the transmission shaft and the driven shaft extend into the mixing tank and are rotatably connected to the mixing tank. Stirring rods are fixedly connected to the outer parts of the transmission shaft and the driven shaft.

[0017] Furthermore, a discharge pipe is fixedly communicated with the lower end of the mixing tank. A discharge valve is fixedly connected to the outer part of the discharge pipe.

[0018] In summary, the present utility model has the following beneficial effects:

[0019] 1. By setting the inflation component, when mixing the laser cladding powder, rotate the handwheel, open the air outlet valve, and let nitrogen enter the mixing tank through the air outlet pipe, the connector and the air outlet hose. The pressure gauge can detect the pressure during the nitrogen delivery, so that the laser cladding metal powder inside the mixing tank is in an inert gas atmosphere, thus preventing some metal powders from oxidizing when mixing the laser cladding powder and preventing the quality of the final product from being affected.

[0020] 2. By setting the pretreatment component, the vibrating machine drives the screening box to vibrate, so as to screen powders with different particle sizes, making the particle sizes of the finally mixed laser cladding powders consistent, thus facilitating more uniform mixing of the laser cladding powders. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of this embodiment;

[0022] Figure 2 is the structural schematic diagram of the plane of this embodiment;

[0023] Figure 3 is the structural schematic diagram of the plane of the inflation component of this embodiment;

[0024] Figure 4 is in this embodiment Figure 2 the structural schematic diagram of part A;

[0025] Figure 5 is in this embodiment Figure 2 the structural schematic diagram of part B.

[0026] In the figure, 1 is a mixing tank; 2 is an air inflation component; 201 is a nitrogen tank; 202 is an air outlet pipe; 203 is an air outlet valve; 204 is a handwheel; 205 is a joint; 206 is a pressure gauge; 207 is an air outlet hose; 208 is a connecting sleeve; 3 is a mixing component; 301 is a bracket; 302 is a driving motor; 303 is a transmission shaft; 304 is a first pulley; 305 is a second pulley; 306 is a connecting belt; 307 is a driven shaft; 308 is a stirring rod; 309 is a discharge pipe; 310 is a discharge valve; 4 is a pretreatment component; 401 is a screening box; 402 is a connecting column; 403 is a sealing cover; 404 is a vibrator; 405 is a connecting frame; 406 is a sieve mesh; 407 is a chute; 408 is a guide rod; 409 is a slider; 410 is a spring; 411 is a plug; 412 is a slot; 413 is a feed hopper; 414 is a discharge pipe; 415 is a discharge valve. Detailed implementation mode

[0027] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] Among them, the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively.

[0029] Refer to Figure 1 As shown in the figure, it is a laser cladding powder mixing device in a preferred embodiment of the present utility model, including a mixing tank 1, an air inflation component 2 is arranged outside the mixing tank 1, a mixing component 3 is arranged inside the mixing tank 1, and a pretreatment component 4 is connected to the upper end of the mixing tank 1;

[0030] Refer to Figures 1 - 3 As shown in the figure, the air inflation component 2 includes a nitrogen tank 201, an air outlet pipe 202 is fixedly communicated with the upper end of the nitrogen tank 201, an air outlet valve 203 is fixedly connected to the outside of the air outlet pipe 202, a handwheel 204 is rotatably connected to the upper end of the air outlet valve 203, a joint 205 is fixedly communicated with the left end of the air outlet pipe 202, a pressure gauge 206 is fixedly connected to the outside of the joint 205, an air outlet hose 207 is threadedly connected to the left end of the joint 205, a connecting sleeve 208 is fixedly connected to the upper end of the mixing tank 1, the air outlet hose 207 penetrates through the connecting sleeve 208 and is threadedly connected with the connecting sleeve 208, and the air outlet hose 207 extends into the mixing tank 1 and is movably connected with the mixing tank 1.

[0031] By setting up the inflation component 2, when mixing the laser cladding powder, rotate the handwheel 204 to open the air outlet valve 203, so that nitrogen enters the mixing tank 1 through the air outlet pipe 202, the joint 205 and the air outlet hose 207. The pressure gauge 206 can detect the pressure during the nitrogen delivery, so that the laser cladding metal powder inside the mixing tank 1 is in an inert gas atmosphere, which can prevent some metal powders from oxidizing when mixing the laser cladding powder and prevent affecting the quality of the final product.

[0032] Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown in

[0033] By setting up the pretreatment component 4, the vibrator 404 drives the screening box 401 to vibrate, so that powders with different particle sizes can be screened, and the particle sizes of the final laser cladding powder for mixing are kept consistent, which is convenient for more uniform mixing of the laser cladding powder.

[0034] Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown in

[0035] Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown in

[0036] By setting the insertion block 411 and the slot 412, before screening, unscrew the sealing cover 403. According to different mixing material requirements, a sieve mesh 406 with different mesh diameters can be selected for installation. When installing the sieve mesh 406, pull the two insertion blocks 411 inward, drive the slider 409 to slide inward along the guide rod 408, and compress the spring 410 until the insertion block 411 is aligned with the slot 412. Then release the two insertion blocks 411. Under the action of the spring 410, drive the insertion block 411 to reset and insert into the slot 412, which is convenient for installing and disassembling sieve meshes 406 of different specifications.

[0037] Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown in the figures, a feed hopper 413 is fixedly connected to the upper end of the sealing cover 403. A discharge pipe 414 is fixedly connected to the lower end of the screening box 401. The discharge pipe 414 is fixedly connected to the mixing box 1. A discharge valve 415 is fixedly connected to the outside of the discharge pipe 414.

[0038] By setting the feed hopper 413, it is convenient to add the laser cladding powder raw material into the screening box 401. Open the discharge valve 415, which is convenient to add the screened powder from the discharge pipe 414 into the mixing box 1 for mixing.

[0039] Refer to Figure 1 , Figure 2 and Figure 5 As shown in the figures, the mixing component 3 includes a bracket 301. The bracket 301 is fixedly connected to the upper end of the mixing box 1. The bracket 301 is in an L-shaped structure. A driving motor 302 is fixedly connected to the lower end of the bracket 301. A transmission shaft 303 is fixedly connected to the lower end of the output end of the driving motor 302. A pulley one 304 is fixedly connected to the outside of the transmission shaft 303. A pulley two 305 is rotatably connected to the upper end of the mixing box 1. A connecting belt 306 is rotatably connected to the outside of the pulley one 304 and the pulley two 305. A driven shaft 307 is fixedly connected to the lower end of the pulley two 305.

[0040] Refer to Figure 1 , Figure 2 and Figure 5 As shown in the figures, both the transmission shaft 303 and the driven shaft 307 extend into the mixing box 1 and are rotatably connected to the mixing box 1. Stirring rods 308 are fixedly connected to the outside of both the transmission shaft 303 and the driven shaft 307.

[0041] Refer to Figure 1 , Figure 2 and Figure 5 As shown in the figures, a discharge pipe 309 is fixedly connected to the lower end of the mixing box 1. A discharge valve 310 is fixedly connected to the outside of the discharge pipe 309.

[0042] By setting up the mixing component 3, the driving motor 302 drives the transmission shaft 303 to rotate, thereby driving the first pulley 304, the second pulley 305, the connecting belt 306 and the driven shaft 307 to rotate, and then driving the two groups of stirring rods 308 to rotate, so as to mix and stir the laser cladding powder. By opening the discharge valve 310, the mixed laser cladding powder can be discharged from the discharge pipe 309.

[0043] Specific implementation process: Before screening, unscrew the sealing cover 403. According to different mixing requirements, a sieve mesh 406 with different mesh diameters can be selected for installation. When installing the sieve mesh 406, pull the two insertion blocks 411 inward, drive the slider 409 to slide inward along the guide rod 408, and compress the spring 410 until the insertion blocks 411 are aligned with the slots 412. Then release the two insertion blocks 411. Under the action of the spring 410, drive the insertion blocks 411 to reset and insert into the slots 412.

[0044] Then tighten the sealing cover 403, and use the feed hopper 413 to add the laser cladding powder raw material into the screening box 401. The vibrator 404 drives the screening box 401 and the sieve mesh 406 to vibrate, so as to screen the powders with different particle sizes, and keep the particle sizes of the laser cladding powders finally for mixing consistent.

[0045] Open the discharge valve 415, add the screened powder from the discharge pipe 414 to the mixing box 1. Rotate the handwheel 204 to open the air outlet valve 203, so that nitrogen enters the mixing box 1 through the air outlet pipe 202, the joint 205 and the air outlet hose 207. The pressure gauge 206 can detect the pressure during nitrogen delivery, so that the laser cladding metal powder inside the mixing box 1 is in an inert gas atmosphere.

[0046] The driving motor 302 drives the transmission shaft 303 to rotate, thereby driving the first pulley 304, the second pulley 305, the connecting belt 306 and the driven shaft 307 to rotate, and then driving the two groups of stirring rods 308 to rotate, so as to mix and stir the laser cladding powder. Finally, open the discharge valve 310, and discharge the mixed laser cladding powder from the discharge pipe 309.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. Laser cladding powder mixing device, characterized by: It comprises a mixing box (1), wherein an air filling component (2) is arranged outside the mixing box (1), a mixing component (3) is arranged inside the mixing box (1), and a pretreatment component (4) is connected to the upper end of the mixing box (1); The inflation assembly (2) comprises a nitrogen tank (201), the upper end of the nitrogen tank (201) is fixedly connected to an air outlet pipe (202), the outside of the air outlet pipe (202) is fixedly connected to an air outlet valve (203), the upper end of the air outlet valve (203) is rotatably connected to a hand wheel (204), the left end of the air outlet pipe (202) is fixedly connected to a joint (205), the outside of the joint (205) is fixedly connected to a pressure gauge (206), the left end of the joint (205) is threadedly connected to an air outlet hose (207), the upper end of the mixing box (1) is fixedly connected to a connecting sleeve (208), the air outlet hose (207) passes through the connecting sleeve (208) and is threadedly connected to the connecting sleeve (208), and the air outlet hose (207) extends to the interior of the mixing box (1) and is movably connected to the mixing box (1).

2. The laser cladding powder mixing device according to claim 1, characterized in that: The pretreatment assembly (4) comprises a screening box (401), the screening box (401) being located above the mixing box (1), the lower end of the screening box (401) being fixedly connected to a connecting column (402), the connecting column (402) being fixedly connected to the mixing box (1), the upper end of the screening box (401) being threadedly connected to a sealing cover (403), and the lower end of the screening box (401) being fixedly connected to a vibrator (404).

3. The laser cladding powder mixing device according to claim 2, characterized in that: The screening box (401) is movably connected to a connecting frame (405) inside, a screen (406) is fixedly connected to the inner wall of the connecting frame (405), a slide groove (407) is provided at the upper end of the connecting frame (405), guide rods (408) are fixedly connected to the left and right sides inside the connecting frame (405), a slider (409) is slidably connected to the outside of the guide rod (408), a spring (410) is movably connected to the outside of the guide rod (408), one end of the spring (410) is fixedly connected to the connecting frame (405), the other end of the spring (410) is fixedly connected to the slider (409), and the slider (409) passes through the slide groove (407) and is slidably connected to the slide groove (407).

4. The laser cladding powder mixing device according to claim 3, characterized in that: An insert block (411) is fixedly connected to the top of the sliding block (409), and the insert blocks (411) are symmetrically distributed on the left and right sides. A slot (412) is provided on the inner wall of the screening box (401), and the insert block (411) is movably connected inside the slot (412), and the insert block (411) is adapted to fit the slot (412).

5. The laser cladding powder mixing device according to claim 2, characterized in that: The upper end of the sealing cover (403) is fixedly connected to a feed hopper (413), the lower end of the screening box (401) is fixedly connected to a discharge pipe (414), the discharge pipe (414) is fixedly connected to a mixing box (1), and the outside of the discharge pipe (414) is fixedly connected to a discharge valve (415).

6. The laser cladding powder mixing device according to claim 1, characterized in that: The mixing assembly (3) comprises a bracket (301), wherein the bracket (301) is fixedly connected to the upper end of the mixing box (1), the bracket (301) is in an L-shaped structure, the lower end of the bracket (301) is fixedly connected to a driving motor (302), the lower end of the output end of the driving motor (302) is fixedly connected to a transmission shaft (303), the outside of the transmission shaft (303) is fixedly connected to a pulley 1 (304), the upper end of the mixing box (1) is rotatably connected to a pulley 2 (305), the outsides of the pulley 1 (304) and the pulley 2 (305) are rotatably connected to a connecting belt (306), and the lower end of the pulley 2 (305) is fixedly connected to a driven shaft (307).

7. The laser cladding powder mixing device according to claim 6, characterized in that: The transmission shaft (303) and the driven shaft (307) both extend into the interior of the mixing box (1) and are rotationally connected to the mixing box (1); and a stirring rod (308) is fixedly connected to the exterior of the transmission shaft (303) and the driven shaft (307).

8. The laser cladding powder mixing device according to claim 1, characterized in that: The lower end of the mixing box (1) is fixedly connected to a discharge pipe (309), and the outside of the discharge pipe (309) is fixedly connected to a discharge valve (310).

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