A flux-cored wire powder applicator

Abstract

The utility model discloses a flux cored wire powder adding device relates to flux cored wire production technical field for solving the problem that the filling rate of flux cored wire gradually reduces with the production time elapses. Flux cored wire powder adding device includes frame body, first bin, second bin, weight sensor, feeding assembly and powder mechanism under, wherein, first bin sets up at frame body, and first bin has first discharge gate, second bin has second discharge gate, weight sensor sets up at frame body, and second bin sets up on weight sensor, and weight sensor is used for detecting the weight of second bin, feeding assembly sets up at frame body, and feeding assembly is used for receiving the medicine powder of first discharge gate and sends the medicine powder into second bin, and powder mechanism under sets up at second discharge gate and is used for guiding the medicine powder in second bin to export to the position of flux cored wire. The utility model provides the stability of filling rate can be guaranteed for the flux cored wire powder adding device.

Description

Technical Field

[0001] This utility model relates to the field of flux-cored welding wire production technology, and in particular to a flux-cored welding wire powder feeder. Background Technology

[0002] The powder feeder is an essential component in a flux-cored welding wire production line. As the requirements for the consistency of welding wire quality become increasingly stringent, the powder feeder also needs to have higher stability.

[0003] The powder feeder commonly used in flux-cored wire production lines is a conical or cylindrical silo with a certain capacity. The flux powder is contained inside the silo and flows out from the discharge port at the bottom of the silo by its own weight. The flux powder is then guided to the flux-cored wire position by a vibration or conveying device.

[0004] However, as the powder feeding process proceeds, the height of the powder column in the hopper gradually decreases, and the pressure on the powder at the discharge port decreases accordingly. This results in a gradual decrease in the weight of powder output per unit time at the discharge port, which in turn causes the filling rate of the welding wire to gradually decrease over time, making it impossible to guarantee the stability of the filling rate. Utility Model Content

[0005] The purpose of this invention is to provide a flux-cored welding wire powder feeder to solve the problem that the filling rate of the welding wire gradually decreases over time, and to ensure the stability of the filling rate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A flux-cored wire feeder, comprising: Frame; The first hopper is disposed on the frame and has a first discharge port; The second hopper has a second discharge port; A weight sensor is disposed on the frame, and the second hopper is disposed on the weight sensor. The weight sensor is used to detect the weight of the second hopper. A feeding assembly is disposed on the frame and is used to receive the powder from the first discharge port and feed the powder into the second hopper. The powder feeding mechanism is located at the second feeding port and is used to discharge the powder in the second hopper to the flux-cored welding wire position.

[0007] Optionally, in the above-mentioned flux-cored wire feeder, a baseline is provided in the second hopper, and the baseline is used to display the powder level in the second hopper.

[0008] Optionally, in the above-mentioned flux-cored wire feeder, the reference line includes a first reference line and a second reference line arranged at intervals along the height direction of the second hopper.

[0009] Optionally, in the above-mentioned flux-cored wire feeder, the feeding assembly includes: A conveyor belt is driven and mounted on the frame. The conveyor belt is located below the first discharge port, and the second hopper is located below the discharge end of the conveyor belt. The conveyor belt is used to receive the powdered medicine at the first discharge port and transport it to the second hopper. A first drive motor is mounted on the frame and connected to the conveyor belt drive for driving the conveyor belt transmission.

[0010] Optionally, in the above-mentioned flux-cored wire feeder, the outer wall surface of the first hopper near the end of the conveyor belt is provided with threads. The flux-cored wire feeder also includes an adjusting nut, which is sleeved on the outer wall of the first hopper and connected with the threads. The adjusting nut is used to move along the height direction of the first hopper to move closer to or further away from the conveyor belt.

[0011] Optionally, in the above-mentioned flux-cored wire feeder, the flux-cored wire feeder further includes a valve, which is located at the first discharge port of the first hopper and is used to control the opening and closing of the first discharge port.

[0012] Optionally, in the above-mentioned flux-cored wire feeder, the flux-cored wire feeder further includes a heating belt, which is sleeved on the outer wall of the first hopper.

[0013] Optionally, in the above-mentioned flux-cored wire feeder, the flux-cored wire feeder further includes a heating rod, which is fixed in the second hopper and is used to contact the flux powder in the second hopper and heat the flux powder.

[0014] Optionally, in the above-mentioned flux-cored wire feeder, the flux-cored wire feeder further includes a stirring shaft and a second drive motor. One end of the stirring shaft is located in the first hopper, and the second drive motor is disposed on the frame and drivenly connected to the stirring shaft. The second drive motor is used to drive the stirring shaft to rotate to stir the flux powder in the first hopper.

[0015] Optionally, in the above-mentioned flux-cored wire feeder, the powder feeding mechanism includes a powder feeding auger and a third drive motor. The powder feeding auger is connected to the second hopper and communicates with the second discharge port. The third drive motor is disposed on the frame and is driven to drive the powder feeding auger to rotate, thereby controlling the powder feeding speed.

[0016] Compared with the prior art, the flux-cored wire feeder provided in this application has a first hopper with a first discharge port, a second hopper with a second discharge port, a feeding assembly disposed on the frame and located below the first discharge port, for receiving the flux powder from the first discharge port and conveying it into the second hopper; a weight sensor disposed on the frame and supporting the second hopper, for detecting the weight of the second hopper; and a powder discharging mechanism disposed at the second discharge port, for discharging the flux powder from the second hopper. During operation, the first hopper is connected to external powder transfer tanks and other powder supply components. The powder in the first hopper falls into the feeding assembly below through the first discharge port. The feeding assembly operates, continuously conveying the received powder to the second hopper. The second hopper, acting as a buffer hopper between the first hopper and the powder feeding mechanism, isolates the impact of changes in the powder height in the first hopper on the powder pressure at the second discharge port. A weight sensor detects changes in the weight of the second hopper to monitor the powder level within it. By controlling the operation of the feeding assembly, such as starting or stopping it or adjusting the conveying speed, the amount of powder in the second hopper is maintained within a preset weight range. In this state, the second hopper buffers and equalizes the pressure of the powder, keeping the static pressure on the powder at the second discharge port at the bottom of the second hopper relatively stable. Subsequently, the powder feeding mechanism guides the stable-pressure powder from the second hopper to the flux-cored wire position. This configuration, by setting up a first and second hopper to form a two-stage powder supply structure, allows the second hopper to buffer the powder, ensuring that changes in the remaining powder level in the first hopper do not directly affect the powder pressure at the second discharge port. Simultaneously, by detecting weight changes in the second hopper using a weight sensor, the system can provide a basis for powder replenishment control of the feeding assembly, thus maintaining a stable weight of powder output from the second discharge port per unit time. This solves the problem in existing powder feeders where a continuous drop in powder level in the hopper leads to reduced pressure at the discharge port, resulting in a decreased filling rate, and ensures the stability of the flux-cored wire filling rate. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a flux-cored wire powder feeder proposed in an embodiment of this utility model; Figure 2 This is a cross-sectional schematic diagram of a flux-cored wire powder feeder proposed in an embodiment of this utility model; Figure 3 This is an enlarged schematic diagram of the second hopper of a flux-cored wire feeder proposed in an embodiment of this utility model.

[0018] Reference numerals: 100 is the frame, 200 is the first hopper, 210 is the valve, 220 is the heating belt, 300 is the second hopper, 310 is the heating rod, 400 is the feeding assembly, 410 is the conveyor belt, 420 is the first drive motor, 500 is the powder feeding auger, 510 is the third drive motor, 600 is the weight sensor, 700 is the adjusting nut, 810 is the stirring shaft, 820 is the second drive motor, and 900 is the dust cover. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Please see Figure 1 This utility model provides a flux-cored wire feeder, which includes a frame 100, a first hopper 200, a second hopper 300, a weight sensor 600, a feeding assembly 400, and a powder discharging mechanism. The first hopper 200 is disposed on the frame 100 and has a first discharge port. The second hopper 300 has a second discharge port. The weight sensor 600 is disposed on the frame 100, and the second hopper 300 is mounted on the weight sensor 600. The weight sensor 600 is used to detect the weight of the second hopper 300. The feeding assembly 400 is disposed on the frame 100 and is used to receive the flux powder discharged from the first discharge port and feed the flux powder into the second hopper 300. The powder discharging mechanism is disposed at the second discharge port and is used to discharge the flux powder in the second hopper 300 to the flux-cored wire position.

[0021] For specific implementation details, please refer to: Figure 1The first hopper 200 is connected to external powder transfer containers and other powder supply components. Powder within the first hopper 200 falls through the first discharge port into the lower feeding assembly 400. The feeding assembly 400 operates, continuously conveying the received powder to the second hopper 300. The second hopper 300, acting as a buffer hopper between the first hopper 200 and the powder dispensing mechanism, isolates the impact of changes in the powder height within the first hopper 200 on the powder pressure at the second discharge port. The weight sensor 600 detects weight changes in the second hopper 300 to adjust the pressure according to the first discharge port. The weight change of the second hopper 300 is used to monitor the powder level in the second hopper 300, and the operation of the feeding component 400 is controlled, such as controlling the start and stop of the feeding component 400 or adjusting the conveying speed, so that the amount of powder in the second hopper 300 is maintained within a preset weight range. In this state, the second hopper 300 can buffer and equalize the pressure of the powder, and the static pressure of the powder at the second discharge port at the bottom of the second hopper 300 is kept relatively stable. Subsequently, the powder feeding mechanism discharges the powder with stable pressure in the second hopper 300 to the flux-cored wire position. This configuration, with the first hopper 200 and the second hopper 300 forming a two-stage powder supply structure, buffers the powder, ensuring that changes in the remaining powder in the first hopper 200 do not directly affect the powder pressure at the second discharge port. Simultaneously, the weight sensor 600 detects weight changes in the second hopper 300, providing a basis for powder replenishment control by the feeding assembly 400. This ensures a stable weight of powder output from the second discharge port per unit time, thus resolving the defect in existing powder feeders where a continuous drop in powder level in the hopper leads to reduced discharge port pressure and consequently a lower filling rate. This guarantees the stability of the flux-cored wire filling rate.

[0022] On the other hand, by setting the weight sensor 600, the amount of powder discharged from the second hopper 300 within a certain period of time can be obtained. Combined with the consumption of the steel belt during that period, the wire filling rate can be calculated. If the wire filling rate differs significantly from the set value, powder feeding is stopped, and the entire flux-cored wire feeder is shut down for adjustment. The weight sensor 600 allows for convenient checking of the wire filling rate, thereby enhancing its stability.

[0023] It should be noted that the weight sensor 600 is located between the frame 100 and the second hopper 300. The weight of the second hopper 300 and the powder inside it can be transmitted to the weight sensor 600, allowing the weight sensor 600 to detect the weight of the second hopper 300 (it can be understood that detecting the weight of the second hopper 300 here refers to detecting the weight of the second hopper 300 and the powder inside it). The first hopper 200 is located on the frame 100, but it is not located on the weight sensor 600. Therefore, the weight of the first hopper 200 and the powder inside it is borne by the frame 100 and is not transmitted to the weight sensor 600, thus avoiding interference from changes in the weight of the powder inside the first hopper 200 with the detection results of the weight sensor 600. In some embodiments, the second hopper 300, the powder feeding auger 500, and the third drive motor 510 are all located on the weight sensor 600. Specifically, a weight sensor 600 is mounted on the frame 100. The second hopper 300, the powder feeding auger 500, and the third drive motor 510 are integrated into the weight sensor 600, which detects the weight of this entire assembly. Since the weights of the powder feeding auger 500 and the third drive motor 510 remain constant during the powder feeding process, the weight change detected by the weight sensor 600 originates from the change in the weight of the powder within the second hopper 300. Therefore, the weight sensor 600 can still be used to detect the weight change of the powder within the second hopper 300.

[0024] As one possible implementation, a baseline is provided inside the second hopper 300 to display the powder level height inside the second hopper 300.

[0025] With this setup, the powder level in the second hopper 300 can be monitored by observing the baseline on the inner wall of the second hopper 300. By controlling the operation of the feeding component 400, such as controlling the start and stop of the feeding component 400 or adjusting the conveying speed, the powder level in the second hopper 300 can be maintained within a preset range with the baseline as a reference. In this state, the second hopper 300 can buffer and equalize the pressure of the powder, and the static pressure on the powder at the second discharge port at the bottom of the second hopper 300 can be kept relatively stable.

[0026] As one possible implementation, the baseline includes a first baseline and a second baseline spaced apart along the height direction of the second hopper 300. Specifically, the first baseline corresponds to a higher preset powder level, and the second baseline corresponds to a lower preset powder level. The powder feeding speed of the feeding component 400 can be controlled by observing the relative position of the powder level in the second hopper 300 with these two baselines: the feeding component 400 continuously feeds powder into the second hopper 300; when the powder level reaches the first baseline, the feeding component 400 stops feeding powder; as powder continues to be added to the second hopper 300, the powder level gradually decreases until it reaches the position of the second baseline; at this point, the feeding component 400 resumes feeding powder at a speed greater than the powder-feeding speed of the second hopper 300; until the powder level returns to the position of the first baseline, the feeding component 400 stops feeding powder again. Through the above operation, the actual powder level in the second hopper 300 can be continuously maintained within the range between the first and second baselines. By setting a first baseline and a second baseline, the first baseline and the second baseline can be used as references for powder level control, so as to stabilize the powder level between the first baseline and the second baseline, ensuring that the pressure of the powder discharged from the second discharge port is relatively stable, which is conducive to improving the stability of the filling rate.

[0027] For example, the first and second reference lines may be etched or printed scale lines within the second hopper 300.

[0028] As one possible implementation, such as Figure 1 and Figure 2As shown, the feeding assembly 400 includes a conveyor belt 410 and a first drive motor 420. The conveyor belt 410 is driven and mounted on the frame 100, located below the first discharge port. The second hopper 300 is located below the discharge end of the conveyor belt 410. The conveyor belt 410 is used to receive the powder from the first discharge port and transport it into the second hopper 300. The first drive motor 420 is mounted on the frame 100 and driven by the conveyor belt 410. Specifically, the conveyor belt 410 is mounted on the frame 100 via rollers or shafts at both ends, and the driving end of the conveyor belt 410 is connected to the output shaft of the first drive motor 420. The first drive motor 420 is fixed to the frame 100 and provides power to the conveyor belt 410, causing it to circulate in a preset direction. In practice, the first drive motor 420 drives the conveyor belt 410. The powder continuously falling from the first discharge port of the first hopper 200 is received on the surface of the conveyor belt 410. As the conveyor belt 410 rotates, the powder is transported to the discharge end of the conveyor belt 410, and due to inertia or guiding force, falls into the second hopper 300 located below the conveyor belt 410, thus completing the powder transport from the first hopper 200 to the second hopper 300. The powder feeding via the conveyor belt 410 is smooth, continuous, and easy to control. The amount of powder fed into the second hopper 300 can be precisely controlled by adjusting the speed or starting / stopping the first drive motor 420, thereby stably maintaining the powder level in the second hopper 300.

[0029] As one possible implementation, such as Figure 1 and Figure 2 As shown, the outer wall surface of the first hopper 200 near the conveyor belt 410 is provided with threads. The flux-cored wire feeder also includes an adjusting nut 700. The adjusting nut 700 is sleeved on the lower outer wall of the first hopper 200 and is connected with the threads. The adjusting nut 700 is used to move along the height direction of the first hopper 200 to move closer to or away from the conveyor belt 410.

[0030] Specifically, the adjusting nut 700 is screwed onto the threaded section of the outer wall of the first hopper 200 via its internal thread, and can move up and down along the height direction of the first hopper 200. In practice, the adjusting nut 700 can be rotated, and the adjusting nut 700 moves up and down along the height direction of the first hopper 200. When the adjusting nut 700 rotates downwards and approaches the lower conveyor belt 410, it will reduce the discharge gap between the first discharge port and the surface of the conveyor belt 410; rotating upwards will increase the gap. By changing the size of the discharge gap, the thickness of the powder layer falling from the first hopper 200 onto the conveyor belt 410 can be controlled. When the thickness is thinner, the flow rate of powder delivered to the second hopper 300 is lower; when the thickness is larger, the flow rate of powder delivered to the second hopper 300 is larger. By setting the adjusting nut 700, the flow rate of powder delivered to the second hopper 300 can be preset and adjusted.

[0031] As one possible implementation, such as Figure 1 As shown, the flux-cored wire feeder also includes a valve 210, which is located at the first discharge port of the first hopper 200. The valve 210 controls the opening and closing of the first discharge port. Specifically, the valve body of the valve 210 can be connected to the outer wall of the first hopper 200, and the valve core (such as a gate) can extend into the discharge channel of the first hopper 200 to cut off or allow the flow of powder. In practice, when the flux-cored wire is operating normally, the valve 210 remains open, allowing the powder to fall smoothly from the first hopper 200 to the feeding assembly 400. When the feeder or related equipment needs maintenance, the valve 210 can be activated, causing the valve core to block the discharge channel of the first hopper 200, thereby preventing further powder delivery. The valve 210 allows for maintenance without disassembling the entire first hopper 200; simply closing the valve 210 improves maintenance efficiency.

[0032] As one possible implementation, such as Figure 1 As shown, the flux-cored wire feeder also includes a heating belt 220, which is sleeved on the outer wall of the first hopper 200. For example, the heating belt 220 can be an electromagnetic coil, and it is installed on the outer wall of the first hopper 200 by wrapping or wrapping. The heat from the heating belt 220 is evenly conducted through the hopper wall to the stored flux powder inside, continuously heating the powder. By maintaining the flux powder in the first hopper 200 at a reasonably high temperature, and since the flux powder has undergone dehydration and baking before being added to the feeder, the heating belt 220 can insulate the first hopper 200 and its contents, and provide auxiliary moisture protection, reducing the risk of the flux powder reabsorbing moisture and clumping in a humid and cold environment. This ensures that the flux powder always maintains a good loose state and fluidity, guaranteeing a uniform final filling rate.

[0033] As one possible implementation, such as Figure 2 As shown, the flux-cored wire feeder also includes a heating rod 310, which is fixed inside the second hopper 300 for contacting and heating the flux powder inside the second hopper 300. By directly contacting and heating the flux powder with the heating rod 310 inside the second hopper 300, the feeder provides contact insulation and auxiliary moisture protection for the flux powder near the feeding mechanism, reducing the risk of the flux powder reabsorbing moisture and clumping due to the cold and humid environment during the final feeding stage. This helps maintain a relatively stable flowability of the flux powder flowing out of the second feeding port, ensuring stable flowability of the flux powder flowing out of the second feeding port.

[0034] As one possible implementation, such as Figure 1 As shown, the flux-cored welding wire feeder also includes a stirring shaft 810 and a second drive motor 820. One end of the stirring shaft 810 is located inside the first hopper 200. The second drive motor 820 is mounted on the frame 100 and is drivenly connected to the stirring shaft 810. The second drive motor 820 is used to drive the stirring shaft 810 to rotate in order to stir the flux powder in the first hopper 200.

[0035] For example, the second drive motor 820 is mounted on the frame 100 above the first silo 200. A gear is provided at the output end of the second drive motor 820. A slewing bearing is provided on the frame 100, and the external teeth on the outer ring of the slewing bearing mesh with the gear at the output end of the second drive motor 820. The inner ring of the slewing bearing is fixed to the frame 100, and the outer ring of the slewing bearing can rotate relative to the inner ring. The stirring shaft 810 is connected to the outer ring of the slewing bearing. In specific implementation, when the second drive motor 820 is started, it drives the outer ring of the slewing bearing to rotate via the gear. The rotation of the outer ring of the slewing bearing drives the stirring shaft 810 to rotate. The rotating stirring shaft 810 continuously stirs the powder in the first silo 200. This design, by stirring and agitating the natural flow of the powder within the first hopper 200, effectively prevents the separation and stratification of powder components with different densities and particle sizes during transport. This ensures that the powder output from the first hopper 200 remains uniformly mixed, guarantees the uniformity of the powder within the first hopper 200, and facilitates the smooth falling of the powder from the first hopper 200.

[0036] As one possible implementation, such as Figures 1 to 3 As shown, the powder feeding mechanism includes a powder feeding auger 500 and a third drive motor 510. The powder feeding auger 500 is connected to the second hopper 300 and communicates with the second discharge port. The third drive motor 510 is mounted on the frame 100 and is driven by the powder feeding auger 500 to drive the powder feeding auger 500 to rotate, thereby controlling the powder feeding speed.

[0037] Specifically, the powder feeding auger 500 is located at the second discharge port at the bottom of the second hopper 300, with its inlet end connected to the interior of the second hopper 300 and its outlet end aligned with the flux-cored welding wire strip. The output end of the third drive motor 510 is connected to the rotating shaft of the powder feeding auger 500 to drive its rotation. In practice, the third drive motor 510 starts, driving the rotating shaft of the powder feeding auger 500 and its spiral blades to rotate, mechanically pushing the powder in the second hopper 300 from the inlet end to the outlet end and into the steel strip. By precisely adjusting the speed of the third drive motor 510, the rotation speed of the powder feeding auger 500 is controlled, thereby achieving stable control of the powder feeding amount per unit time.

[0038] In some embodiments, such as Figure 3 As shown, a dust cover 900 is also connected to the second hopper 300. The dust cover 900 is installed in the top inlet area of ​​the second hopper 300, covering the falling space from the outlet of the feeding assembly 400 to the inlet of the second hopper 300. When the feeding assembly 400 conveys the powder into the second hopper 300, the dust cover 900 forms a relatively enclosed space, blocking and confining the powder dust that may be generated during the feeding process within the cover, allowing it to fall naturally back into the second hopper 300, thereby effectively preventing dust from spreading to the surrounding working environment. The beneficial effect of this setting is that it reduces dust pollution during the powder adding process; it also helps to prevent external impurities from spreading into the second hopper 300 and contaminating the powder.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A flux cored wire powder applicator characterized by, include: Frame; The first hopper is disposed on the frame and has a first discharge port; The second hopper has a second discharge port; A weight sensor is disposed on the frame, and the second hopper is disposed on the weight sensor. The weight sensor is used to detect the weight of the second hopper. A feeding assembly is disposed on the frame and is used to receive the powder at the first discharge port and feed the powder into the second hopper. The powder feeding mechanism is located at the second feeding port and is used to discharge the powder in the second hopper to the flux-cored welding wire position.

2. The powder adder for flux cored wire of claim 1 wherein, A baseline is provided inside the second hopper, which is used to display the powder level height inside the second hopper.

3. The powder adder for flux cored wire of claim 2 wherein, The baseline includes a first baseline and a second baseline that are spaced apart along the height direction of the second silo.

4. The powder feeder of claim 1, wherein The feeding assembly includes: A conveyor belt is driven and mounted on the frame. The conveyor belt is located below the first discharge port, and the second hopper is located below the discharge end of the conveyor belt. The conveyor belt is used to receive the powdered medicine at the first discharge port and transport it to the second hopper. A first drive motor is mounted on the frame and connected to the conveyor belt drive for driving the conveyor belt transmission.

5. The powder feeder of claim 4, wherein The outer wall surface of the first hopper near the end of the conveyor belt is provided with threads. The flux-cored wire feeder also includes an adjusting nut. The adjusting nut is sleeved on the outer wall of the first hopper and is connected to the threads. The adjusting nut is used to move along the height direction of the first hopper to move closer to or away from the conveyor belt.

6. The powder feeder of claim 1, wherein The flux-cored welding wire feeder also includes a valve, which is located at the first discharge port of the first hopper and is used to control the opening and closing of the first discharge port.

7. The powder feeder of claim 1, wherein The flux-cored wire feeder also includes a heating belt, which is sleeved on the outer wall of the first hopper.

8. The powder feeder of claim 1, wherein The flux-cored wire feeder also includes a heating rod, which is fixed in the second hopper and is used to contact the flux powder in the second hopper and heat the flux powder.

9. The powder feeder of claim 1, wherein The flux-cored welding wire feeder also includes a stirring shaft and a second drive motor. One end of the stirring shaft is located inside the first hopper, and the second drive motor is disposed on the frame and drivenly connected to the stirring shaft. The second drive motor is used to drive the stirring shaft to rotate in order to stir the flux powder in the first hopper.

10. The powder feeder of claim 1, wherein The powder feeding mechanism includes a powder feeding auger and a third drive motor. The powder feeding auger is connected to the second hopper and communicates with the second discharge port. The third drive motor is mounted on the frame and is driven by the powder feeding auger to drive the powder feeding auger to rotate, thereby controlling the powder feeding speed.

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