Apparatus and method for manufacturing metal foil-reinforced powder composite flux cored wire

Abstract

The application provides a manufacturing device and method of metal foil-reinforced powder composite flux-cored wire, which comprises a device sheet metal shell, a metal foil roll feeding rack is arranged on one side of the top of the device sheet metal shell; a coaxial winding composite wire device for winding metal foil into a cavity metal foil wire and synchronously adding reinforcing powder inside the cavity metal foil wire is arranged on the metal foil outlet side of the metal foil roll feeding rack; a tungsten plate-ultrasonic module for preheating and ultrasonic vibration of the metal foil-powder composite wire is arranged at the bottom end of the coaxial winding composite wire device; a wire shaping and feeding assembly for shaping and feeding the metal foil-powder composite wire is arranged at the output end of the tungsten plate-ultrasonic module, and the application has the advantages of simple material proportioning mode, high efficiency, good forming quality, high material utilization rate, strong material combination and flexible adjustment of the proportion of metal foil-powder composite.

Description

Technical Field

[0001] This invention relates to the field of additive manufacturing technology for lightweight alloy composite materials, and particularly to an apparatus and method for manufacturing metal foil-reinforced powder composite flux-cored welding wire. Background Technology

[0002] Flux-cored welding wire can not only be used as a means to control the composition of weld in traditional welding, but also as a material addition method for additive manufacturing technology using welding wire. The desired reinforcing phase particles or powders can be added to the flux core of the flux-cored welding wire to prepare composite material additive parts.

[0003] Traditional flux-cored welding wires, like solid welding wires, are made of materials with good plasticity, such as low-carbon steel or low-alloy steel. Currently, the internationally prevalent method for producing flux-cored welding wires is the steel strip method. This method uses cold-rolled steel strips as the outer sheath material. After being cut into narrow strips and cleaned, the steel strips are rolled into a U-shaped cross-section. Pre-mixed welding powder is then added to the U-shaped steel strip, which is then pressed tightly using a rolling mill. Finally, it is drawn into flux-cored welding wires of different specifications. Currently, most flux-cored welding wires have an outer sheath made primarily of iron-based materials. However, some alloy materials, which are difficult to obtain uniform welding wires through drawing, are difficult to produce flux-cored welding wires using traditional methods.

[0004] In the manufacturing process of metal foil, lightweight alloy metals with good ductility are usually selected because they have good ductility, and metal foils made from lightweight alloy metals through forging or rolling processes will not break or tear due to their own weight. Lightweight alloy metals can be made into thinner metal foils; for example, the thickness of aluminum foil can typically be as thin as 1 / 1000 inch (0.03 mm). Although lightweight alloy metals have excellent metal processing properties, the tensile strength of lightweight alloy metal foils is difficult to meet the requirements of traditional steel strip welding wire manufacturing processes. In the process of producing flux-cored welding wire using the traditional steel strip method, lightweight alloy metals undergo plastic deformation, and the internal grains slip, resulting in dislocation entanglement, grain elongation, breakage, and fibrosis. Residual stress is generated inside the lightweight alloy metal, reducing its plasticity, ductility, and impact toughness. Lightweight alloy metal foils manufactured by traditional processes are prone to work hardening and breakage.

[0005] In addition, the raw materials selected in metal additive manufacturing technology are usually metal powders or metal wires, resulting in a limited selection of raw materials and poor combinability. These factors restrict the development and application of metal additive manufacturing technology, as well as the development of new composite materials. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention overcomes the limitations of lightweight alloy metal foils by employing a metal foil winding and rolling method. The purpose of this invention is to provide a manufacturing apparatus and method for metal foil-reinforced powder composite flux-cored welding wire. This invention enables the manufacture of flux-cored welding wires by arbitrarily combining metal foils of different materials and reinforcing powders in various proportions. This invention offers advantages such as simple material proportioning, high efficiency, good forming quality, high material utilization, strong material compatibility, and flexible adjustment of the metal foil-powder composite ratio. Furthermore, it provides excellent control over the process parameters used in developing and preparing new material metal foil-powder composite welding wires.

[0007] To achieve the above-mentioned technical features, the object of the present invention is achieved as follows: a manufacturing apparatus for metal foil-reinforced powder composite flux-cored welding wire, comprising a sheet metal housing for supporting the entire apparatus, and a metal foil feeder for storing and conveying metal foil is provided on one side of the top of the sheet metal housing.

[0008] The metal foil feeder is equipped with a coaxial winding composite welding wire device on the metal foil outlet side for winding metal foil into hollow metal foil wire and simultaneously adding reinforcing powder inside the hollow metal foil wire.

[0009] The bottom end of the coaxial winding composite welding wire device is provided with a tungsten plate-ultrasonic module for preheating and ultrasonic vibration of the composite metal foil-powder composite welding wire.

[0010] The output end of the tungsten plate-ultrasonic module is equipped with a wire shaping and feeding assembly for shaping and feeding the metal foil-powder composite welding wire.

[0011] The metal foil feeding rack includes a metal foil fixing support installed on the upper outer wall of the sheet metal housing of the device. A metal foil tray for storing metal foil rolls is installed on the metal foil fixing support. The metal foil tray is connected to a servo motor for driving its rotation and unwinding.

[0012] The coaxial winding composite welding wire device includes a first support plate and a second support plate fixed on the outer wall of the sheet metal housing of the device. The top of the first support plate is supported and installed with a widened rolling roller for pressing and meshing the metal foil. The axle of the widened rolling roller is connected to the output shaft of the rolling roller motor installed on the second support plate.

[0013] A friction roller motor assembly block is fixedly installed on the top of the first support cross plate. A powder funnel for storing reinforcing powder is rotatably installed on the friction roller motor assembly block. The powder funnel meshes with a powder funnel friction roller for driving its rotation.

[0014] The powder funnel chamber is equipped with a spiral stirring assembly for stirring and feeding the reinforced powder.

[0015] The lower outer wall of the powder funnel chamber is connected to an auxiliary winding assembly for auxiliary winding of the metal foil.

[0016] The spiral stirring assembly includes a support shaft rotatably mounted on a friction roller motor assembly block. The support shaft is connected to a servo motor for driving its rotation. A spiral stirring rod is provided at the bottom end of the support shaft and inside the powder funnel chamber. The spiral stirring rod extends to the feeding funnel head at the bottom end of the powder funnel chamber and extrudes the reinforcing powder into the wound hollow metal foil wire through a spiral discharge method.

[0017] The auxiliary winding assembly includes a rolling guide metal foil spiral winding side plate fixed to the outer wall of the sheet metal housing of the device. Multiple friction wheel support side plates arranged vertically are fixed on the outer wall of the rolling guide metal foil spiral winding side plate. Rubber friction wheels are rotatably installed between the friction wheel support side plates. The rubber friction wheels contact and cooperate with the outer wall of the powder funnel chamber, and compress and wind the metal foil wound on the outer wall of the powder funnel chamber. The powder funnel chamber adopts a conical cylindrical structure, and a right spiral guide metal foil plate and a left spiral guide metal foil plate are provided on both sides of the powder funnel chamber for guiding the metal foil. A front friction wheel for pressing the metal foil is installed on the top of the rubber friction wheels.

[0018] The tungsten plate-ultrasonic module is symmetrically installed at the bottom ends of the right spiral guide metal foil plate and the left spiral guide metal foil plate, and clamps and fixes the feeding funnel head.

[0019] The servo motor controls the conveying speed of the metal foil; the roller motor and the friction roller of the powder funnel rotate in the same direction; the powder funnel is not equipped with a drive motor and is driven, and is supported by a support shaft, a right-side spiral guide metal foil plate and a left-side spiral guide metal foil plate; the front friction wheel contacts the metal foil wrapped around the outer wall of the powder funnel, and the rotation of the front friction wheel generates a frictional preload to prevent the wound hollow metal wire from loosening.

[0020] The drive motors for the support shaft and the friction rollers of the powder funnel are installed inside the friction roller motor assembly block. Two servo motors are set inside the friction roller motor assembly block to control the operating speed and rotation direction of the support shaft and the friction rollers of the powder funnel, respectively. At the same time, the friction roller motor assembly block, the support shaft and the friction rollers of the powder funnel cooperate to achieve multi-degree-of-freedom fixation of the powder funnel.

[0021] The wire shaping and feeding assembly includes a composite welding wire rolling pre-tightening wheel set installed on the lower outer wall of the sheet metal housing of the device, and a wire feeder is provided at the output end of the composite welding wire rolling pre-tightening wheel set.

[0022] A method for manufacturing welding wire using an apparatus for manufacturing metal foil-reinforced powder composite flux-cored welding wire:

[0023] The hollow metal wire can be filled with reinforcing powder to prepare a metal foil-powder composite welding wire or without powder addition to prepare a solid welding wire.

[0024] In the preparation of metal foil-powder composite welding wire:

[0025] After the metal foil roll is installed on the metal foil tray, it is manually guided through the coaxial winding composite welding wire device, and the metal foil is initially wound into a hollow metal wire. Reinforcing powder is then manually added into the powder funnel. The device is started manually by operating the motor control panel, and the reinforcing powder is fully and evenly mixed under the stirring action of the spiral stirring component. It is then squeezed into the hollow metal wire through the feeding funnel head at the lower end of the powder funnel. The tungsten plate-ultrasonic module performs preheating and ultrasonic vibration. Heating the tungsten plate reduces the hydrogen content in the composite welding wire material, reducing the generation of hydrogen pores during the welding process. Ultrasonic vibration ensures that the powder is tightly and evenly filled, improving the quality of the finished composite welding wire. Finally, the metal foil-powder composite welding wire or hollow metal wire is output through the welding wire shaping and feeding component.

[0026] When preparing solid welding wire:

[0027] Turn on the servo motor, turn on the motor of the friction roller in the powder funnel chamber of the friction roller motor assembly block, turn off the motor of the spiral stirrer, turn off the tungsten plate-ultrasonic module, and turn on all the motors in the metal foil-powder composite welding wire shaping assembly; the metal foil is wound into a hollow metal wire under the combined action of the rubber friction wheel, the powder funnel chamber, the right spiral guide metal foil plate and the left spiral guide metal foil plate; the initially wound hollow metal wire is compacted by the metal foil-powder composite welding wire rolling pre-tightening wheel group, and the hollow metal wire is transformed into a solid metal wire, and the wire feeder outputs the solid welding wire.

[0028] The present invention has the following beneficial effects:

[0029] 1. This invention enables the manufacture of flux-cored welding wire by arbitrarily combining metal foils of different materials and reinforcing powders. It has the advantages of simple material proportioning method, high efficiency, good material forming quality, high material utilization rate, strong combinability, and flexible adjustment of the metal foil-powder composite ratio.

[0030] 2. The metal foil feeding rack described above can be used for storing and unwinding metal foil.

[0031] 3. The coaxial winding composite welding wire device described above can be used to wind metal foil into hollow metal foil wire, and then use the hollow metal foil wire to coat the reinforcing metal powder.

[0032] 4. The powder funnel chamber has a conical shape. This structure ensures that the metal foil can gradually form a conical structure during the winding process, which facilitates the formation of hollow metal foil wires.

[0033] 5. The spiral stirring assembly is used to stir and mix the reinforcing metal powder, so that the various reinforcing powders are uniformly mixed, and the spiral rod is used to feed the reinforcing powder into the hollow metal wire formed by winding.

[0034] 6. Tungsten plate-ultrasonic module: preheating and hydrogen removal are completed, and ultrasonic vibration is used to improve the uniformity and compactness of metal powder filling, solve the problem of powder blockage between the cavity metal wire and the feeding funnel head channel, and improve the efficiency of powder conveying and filling. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] Figure 1 This is a partial cross-sectional view of the device of the present invention.

[0037] Figure 2 This is a side view of the present invention.

[0038] Figure 3 For the present invention Figure 2 AA view.

[0039] Figure 4 This is a schematic diagram showing the rotation direction of the motor at the upper end of the metal foil-powder coaxial winding composite welding wire device of the present invention.

[0040] Figure 5 For the present invention Figure 1 Partial cross-sectional view of the upper structure of the metal foil-powder coaxial winding composite welding wire device.

[0041] Figure 6 For the present invention Figure 5 A partial enlarged view of the upper structure of the metal foil-powder coaxial winding composite welding wire device.

[0042] Figure 7 For the present invention Figure 1 Partial cross-sectional view of the lower end of the metal foil-powder coaxial winding composite welding wire device.

[0043] Figure 8 For the present invention Figure 7 A partial enlarged view of the lower end of the metal foil-powder coaxial winding composite welding wire device.

[0044] Figure 9 This is an isometric view of the present invention.

[0045] In the diagram: 1. Metal foil roll fixing support; 2. Metal foil roll tray; 3. Servo motor; 4. Metal foil; 5. Rolling roller motor; 6. Widened rolling roller; 7. Support shaft; 8. Friction roller motor assembly block; 9. Powder funnel chamber; 10. Powder funnel chamber friction roller; 11. Rolling guide metal foil spiral winding side plate; 12. Front friction roller; 13. Right side spiral guide metal foil plate; 14. Rubber friction roller; 15. Left side spiral guide metal foil plate; 16. Friction roller support side plate; 17. Tungsten plate-ultrasonic module; 18. Feeding funnel head; 19. Metal foil-powder composite welding wire rolling pre-tightening roller assembly; 20. Metal foil-powder composite welding wire; 21. Wire feeder; 22. Device sheet metal shell; 23. Second support horizontal plate; 24. First support horizontal plate; 25. Spiral stirring rod. Detailed Implementation

[0046] Example 1:

[0047] Please see Figures 1-9 A manufacturing apparatus for metal foil-reinforced powder composite flux-cored welding wire includes a sheet metal housing 22 for supporting the entire apparatus. A metal foil feeder for storing and conveying metal foil 4 is provided on one side of the top of the sheet metal housing 22. A coaxial winding composite welding wire device is provided on the metal foil outlet side of the metal foil feeder for winding the metal foil 4 into a hollow metal foil wire and simultaneously adding reinforcing powder inside the hollow metal foil wire. A tungsten plate-ultrasonic module 17 is provided at the bottom end of the coaxial winding composite welding wire device for preheating and ultrasonically vibrating the composite metal foil-powder welding wire 20. A wire shaping and feeding assembly is provided at the output end of the tungsten plate-ultrasonic module 17 for shaping and feeding the metal foil-powder composite welding wire 20. This invention enables the manufacture of flux-cored welding wires by arbitrarily combining metal foils of different materials and reinforcing powders. It offers advantages such as simple material proportioning, high efficiency, good forming quality, high material utilization, strong material compatibility, and flexible adjustment of the metal foil-powder composite ratio. Furthermore, it provides excellent control over the process parameters for developing and preparing new metal foil-reinforced powder composite welding wires. In the specific operation, a metal foil feeder feeds a thin metal sheet into a coaxial winding composite welding wire device, which winds the sheet to form a hollow metal foil wire. A spiral stirring assembly then encapsulates the reinforcing metal powder within the hollow metal foil wire, forming composite welding wires with different proportions. After preparation, the wire is shaped using a wire shaping and feeding assembly.

[0048] Furthermore, the metal foil feeder includes a metal foil fixing support 1 installed on the upper outer wall of the sheet metal housing 22 of the device. A metal foil tray 2 for storing metal foil rolls is mounted on the metal foil fixing support 1. The metal foil tray 2 is connected to a servo motor 3 for driving its rotation and unwinding. This metal foil feeder can be used for storing and unwinding metal foil. During the unwinding operation, the servo motor 3 drives the rotating shaft to move the metal foil tray 2, and the motor control unit controls the servo motor speed to achieve controllable speed conveying of the metal foil strip.

[0049] Furthermore, the coaxial winding composite welding wire device includes a first support plate 24 and a second support plate 23 fixed on the outer wall of the sheet metal housing 22 of the device. The top of the first support plate 24 is supported and installed with a widened rolling roller 6 for pressing and meshing the metal foil 4. The axle of the widened rolling roller 6 is connected to the output shaft of the rolling roller motor 5 installed on the second support plate 23. A friction roller motor assembly block 8 is fixedly installed on the top of the first support plate 24. A powder funnel hopper 9 for storing reinforcing powder is rotatably installed on the friction roller motor assembly block 8. The powder funnel hopper 9 meshes with a powder funnel friction roller 10 for driving its rotation. The interior of the powder funnel hopper 9 is provided with a spiral stirring assembly for stirring and feeding the reinforcing powder. The lower outer wall of the powder funnel hopper 9 is connected to an auxiliary winding assembly for auxiliary winding of the metal foil 4. The coaxial winding composite welding wire device described above can be used to wind metal foil into hollow metal foil wire, which can then be used to coat reinforcing metal powder.

[0050] Furthermore, the powder funnel 9 has a conical shape, which ensures that the metal foil 4 can gradually form a conical structure during the winding process, thereby facilitating the formation of hollow metal foil wires.

[0051] Furthermore, the spiral stirring assembly includes a support shaft 7 rotatably mounted on the friction roller motor assembly block 8. The support shaft 7 is connected to a servo motor for driving its rotation. A spiral stirring rod 25 is disposed at the bottom end of the support shaft 7 and inside the powder funnel chamber 9. The spiral stirring rod 25 extends to the feeding funnel head 18 at the bottom end of the powder funnel chamber 9 and extrudes the reinforcing powder into the wound hollow metal foil wire through a spiral discharge method. The spiral stirring assembly is used to stir and mix the reinforcing metal powder, achieving uniform mixing of multiple reinforcing powders, and the spiral rod feeds the reinforcing powder into the wound hollow metal wire. The feeding funnel head 18 is designed and configured with different models and series; in the actual processing and production process, different models and series of feeding funnel heads are selected according to the actual situation to change the diameter of the metal foil-powder composite welding wire, thereby realizing the manufacturing and processing of lightweight alloy metal foil-reinforced powder composite welding wires of different diameters.

[0052] Furthermore, the auxiliary winding assembly includes a rolling guide metal foil spiral winding side plate 11 fixed to the outer wall of the sheet metal housing 22 of the device. Multiple friction wheel support side plates 16 are fixed on the outer wall of the rolling guide metal foil spiral winding side plate 11, arranged vertically. Rubber friction wheels 14 are rotatably mounted between the friction wheel support side plates 16. The rubber friction wheels 14 contact and engage with the outer wall of the powder funnel chamber 9, pressing and winding the metal foil 4 wound on the outer wall of the powder funnel chamber 9. The powder funnel chamber 9 adopts a conical cylindrical structure, and a right spiral guide metal foil plate 13 and a left spiral guide metal foil plate 15 are provided on both sides of the powder funnel chamber 9 for guiding the metal foil 4. A front friction wheel 12 for pressing the metal foil 4 is installed on the top of the rubber friction wheel 14. The above-mentioned auxiliary winding assembly facilitates the formation of hollow metal wires.

[0053] As attached Figure 3 As shown, the tungsten plate-ultrasonic module 17 is symmetrically installed at the bottom ends of the right spiral guiding metal foil plate 13 and the left spiral guiding metal foil plate 15, and clamps and fixes the feeding funnel head 18. During operation, the tungsten plate-ultrasonic module of the right spiral guiding metal foil plate 13 and the left spiral guiding metal foil plate 15 on both sides of the feeding funnel head is turned on in advance to complete preheating and hydrogen removal, and the ultrasonic vibration is used to improve the uniformity and compactness of the metal powder filling, solve the problem of powder blockage between the cavity metal wire and the feeding funnel head channel, and improve the powder filling efficiency.

[0054] As attached Figure 4 As shown in the figure, the rotating arrows indicate the driving rotation directions of the servo motor 3, the two rolling roller motors 5, the powder funnel 9, the support shaft 7, the powder funnel friction roller 10, and the front friction roller 12, as well as the input direction of the metal foil and the output direction of the composite welding wire. The servo motor 3 controls the conveying speed of the metal foil. The rolling roller motors 5 and the powder funnel friction roller 10 rotate in the same direction. The powder funnel 9 is not equipped with a drive motor and is driven by the support shaft 7, the right spiral guide metal foil plate 13, and the left spiral guide metal foil plate 15. The front friction roller 12 contacts the metal foil wound on the outer wall of the powder funnel 9. The rotation of the front friction roller 12 generates a frictional preload to prevent the wound hollow metal wire from loosening.

[0055] As attached Figure 5-6 As shown, the drive motors for the support shaft 7 and the powder funnel friction roller 10 are installed in the friction roller motor assembly block 8. Two servo motors are set in the friction roller motor assembly block 8 to control the operating speed and rotation direction of the support shaft 7 and the powder funnel friction roller 10 respectively. At the same time, the friction roller motor assembly block 8, the support shaft 7 and the powder funnel friction roller 10 work together to achieve multi-degree-of-freedom fixation of the powder funnel 9.

[0056] Furthermore, the wire shaping and feeding assembly includes a composite welding wire rolling pre-tensioning roller group 19 mounted on the lower outer wall of the sheet metal housing of the device, and a wire feeder 21 is provided at the output end of the composite welding wire rolling pre-tensioning roller group 19. The above-described wire shaping and feeding assembly can be used to perform final shaping of the welding wire.

[0057] Furthermore, the hollow metal wire material can be a single-element metal foil or an alloy metal foil, and the reinforcing powder can be a single-element powder or an alloy powder. The lightweight alloy metal foil wound around the hollow metal wire is fed in a single layer or multiple layers; the diameter of the hollow metal wire, the winding speed, the powder type, and the metal foil-powder composite material and powder filling rate can all be set and adjusted on the motor operation panel. Finally, the composite gold metal foil-reinforced powder welding wire is output through the metal foil-powder composite welding wire shaping component and fed into other manufacturing equipment.

[0058] Example 2:

[0059] A method for manufacturing welding wire using an apparatus for manufacturing metal foil-reinforced powder composite flux-cored welding wire:

[0060] The hollow metal wire can be filled with reinforcing powder to prepare a metal foil-powder composite welding wire or without powder addition to prepare a solid welding wire.

[0061] In the preparation of metal foil-powder composite welding wire:

[0062] After the metal foil roll is installed on the metal foil tray, it is manually guided through the coaxial winding composite welding wire device, and the metal foil is initially wound into a hollow metal wire. Reinforcing powder is then manually added into the powder funnel. The device is started manually by operating the motor control panel, and the reinforcing powder is fully and evenly mixed under the stirring action of the spiral stirring component. It is then squeezed into the hollow metal wire through the feeding funnel head at the lower end of the powder funnel. The tungsten plate-ultrasonic module performs preheating and ultrasonic vibration. Heating the tungsten plate reduces the hydrogen content in the composite welding wire material, reducing the generation of hydrogen pores during the welding process. Ultrasonic vibration ensures that the powder is tightly and evenly filled, improving the quality of the finished composite welding wire. Finally, the metal foil-powder composite welding wire or hollow metal wire is output through the welding wire shaping and feeding component.

[0063] When preparing solid welding wire:

[0064] Turn on the servo motor, turn on the motor of the friction roller in the powder funnel chamber of the friction roller motor assembly block, turn off the motor of the spiral stirrer, turn off the tungsten plate-ultrasonic module, and turn on all the motors in the metal foil-powder composite welding wire shaping assembly; the metal foil is wound into a hollow metal wire under the combined action of the rubber friction wheel, the powder funnel chamber, the right spiral guide metal foil plate 13 and the left spiral guide metal foil plate 15; the initially wound hollow metal wire is compacted by the metal foil-powder composite welding wire rolling pre-tightening wheel group, and the hollow metal wire is transformed into a solid metal wire, and the wire feeder outputs the solid welding wire.

Claims

1. An apparatus for manufacturing metal foil-reinforced powder composite flux-cored welding wire, characterized in that, It includes a sheet metal housing (22) for supporting the entire device, and a metal foil feeder for storing and conveying metal foil (4) is provided on one side of the top of the sheet metal housing (22). The metal foil feeder is provided with a coaxial winding composite welding wire device on the metal foil outlet side for winding the metal foil (4) into a cavity metal foil wire and simultaneously adding reinforcing powder inside the cavity metal foil wire. The bottom end of the coaxial winding composite welding wire device is provided with a tungsten plate-ultrasonic module (17) for preheating and ultrasonic vibration of the composite metal foil-powder composite welding wire (20). The output end of the tungsten plate-ultrasonic module (17) is provided with a wire shaping and feeding assembly for shaping and feeding the metal foil-powder composite welding wire (20); The metal foil feeding rack includes a metal foil fixing support (1) installed on the upper outer side wall of the sheet metal housing (22) of the device. A metal foil tray (2) for storing metal foil rolls is installed on the metal foil fixing support (1). The metal foil tray (2) is connected to a servo motor (3) for driving it to rotate and unwind. The coaxial winding composite welding wire device includes a first support plate (24) and a second support plate (23) fixed on the outer side wall of the sheet metal housing (22) of the device. The top of the first support plate (24) is supported and installed with a widened rolling roller (6) for pressing and meshing the metal foil (4). The axle of the widened rolling roller (6) is connected to the output shaft of the rolling roller motor (5) installed on the second support plate (23). A friction roller motor assembly block (8) is fixedly installed on the top of the first support plate (24). A powder funnel hopper (9) for storing reinforcing powder is rotatably installed on the friction roller motor assembly block (8). The powder funnel hopper (9) meshes with a powder funnel friction roller (10) for driving its rotation. The powder funnel hopper (9) is equipped with a spiral stirring assembly for stirring and feeding the reinforcing powder. The lower outer wall of the powder funnel (9) is connected to an auxiliary winding assembly for auxiliary winding of the metal foil (4); The auxiliary winding assembly includes a rolling guide metal foil spiral winding side plate (11) fixed on the outer wall of the sheet metal housing (22) of the device. Multiple friction wheel support side plates (16) arranged vertically are fixed on the outer wall of the rolling guide metal foil spiral winding side plate (11). Rubber friction wheels (14) are rotatably installed between the friction wheel support side plates (16). The rubber friction wheels (14) contact and cooperate with the outer wall of the powder funnel chamber (9) and press and wind the metal foil (4) wound on the outer wall of the powder funnel chamber (9). The powder funnel chamber (9) adopts a conical cylindrical structure, and the powder funnel chamber (9) is provided with a right spiral guide metal foil plate (13) and a left spiral guide metal foil plate (15) for guiding the metal foil (4) on both sides. A front friction wheel (12) for pressing the metal foil (4) is installed on the top of the rubber friction wheel (14). The tungsten plate-ultrasonic module (17) is symmetrically installed at the bottom of the right spiral guide metal foil plate (13) and the left spiral guide metal foil plate (15), and clamps and fixes the feeding funnel head (18).

2. The apparatus for manufacturing the metal foil-reinforced powder composite flux-cored wire according to claim 1, characterized in that: The spiral stirring assembly includes a support shaft (7) rotatably mounted on a friction roller motor assembly block (8). The support shaft (7) is connected to a servo motor for driving its rotation. A spiral stirring rod (25) is provided at the bottom end of the support shaft (7) and inside the powder funnel chamber (9). The spiral stirring rod (25) extends to the feeding funnel head (18) at the bottom end of the powder funnel chamber (9) and extrudes the reinforcing powder into the wound hollow metal foil wire through a spiral discharge method.

3. The apparatus for manufacturing the metal foil-reinforced powder composite flux-cored wire according to claim 1, characterized in that: The servo motor (3) controls the conveying speed of the metal foil; the roller motor (5) and the powder funnel friction roller (10) rotate in the same direction; the powder funnel (9) is not equipped with a drive motor and is driven, and is supported by the rotation of the support shaft (7), the right spiral guide metal foil plate (13) and the left spiral guide metal foil plate (15); the front friction wheel (12) contacts the metal foil wrapped around the outer wall of the powder funnel (9), and the front friction wheel (12) rotates to generate friction preload to prevent the wound cavity metal wire from loosening.

4. The apparatus for manufacturing the metal foil-reinforced powder composite flux-cored wire according to claim 2, characterized in that: The drive motors of the support shaft (7) and the powder funnel friction roller (10) are installed in the friction roller motor assembly block (8). Two servo motors are set in the friction roller motor assembly block (8) to control the operating speed and rotation direction of the support shaft (7) and the powder funnel friction roller (10) respectively. At the same time, the friction roller motor assembly block (8), the support shaft (7) and the powder funnel friction roller (10) work together to achieve multi-degree-of-freedom fixation of the powder funnel (9).

5. The apparatus for manufacturing the metal foil-reinforced powder composite flux-cored wire according to claim 1, characterized in that: The wire shaping and feeding assembly includes a composite wire rolling pre-tightening wheel group (19) installed on the lower outer wall of the sheet metal housing of the device, and a wire feeder (21) is provided at the output end of the composite wire rolling pre-tightening wheel group (19).

6. A method for manufacturing welding wire using the apparatus for manufacturing metal foil-reinforced powder composite flux-cored welding wire as described in claim 3, characterized in that: The hollow metal wire can be filled with reinforcing powder to prepare a metal foil-powder composite welding wire or without powder addition to prepare a solid welding wire. In the preparation of metal foil-powder composite welding wire: After the metal foil roll is installed on the metal foil tray, it is manually guided through the coaxial winding composite welding wire device, and the metal foil is initially wound into a hollow metal wire. Reinforcing powder is then manually added into the powder funnel. The device is started manually by operating the motor control panel, and the reinforcing powder is fully and evenly mixed under the stirring action of the spiral stirring component. It is then squeezed into the hollow metal wire through the feeding funnel head at the lower end of the powder funnel. The tungsten plate-ultrasonic module performs preheating and ultrasonic vibration. Heating the tungsten plate reduces the hydrogen content in the composite welding wire material, reducing the generation of hydrogen pores during the welding process. Ultrasonic vibration ensures that the powder is tightly and evenly filled, improving the quality of the finished composite welding wire. Finally, the metal foil-powder composite welding wire or hollow metal wire is output through the welding wire shaping and feeding component. When preparing solid welding wire: Turn on the servo motor, turn on the motor of the friction roller in the powder funnel chamber of the friction roller motor assembly block, turn off the motor of the spiral stirring, turn off the tungsten plate-ultrasonic module, and turn on all the motors in the metal foil-powder composite welding wire shaping assembly; the metal foil is rolled into a cavity metal wire under the combined action of the rubber friction wheel, the powder funnel chamber, the right spiral guide metal foil plate (13) and the left spiral guide metal foil plate (15); the initially rolled cavity metal wire is compacted by the metal foil-powder composite welding wire rolling pre-tightening wheel group, and the cavity metal wire is transformed into a solid metal wire, and the wire feeder outputs the solid welding wire.

Images