A welding wire powder filling device and filling method

Abstract

This invention relates to the field of welding wire production equipment technology, and particularly to a welding wire flux filling device and method. The welding wire flux filling device of this invention includes: a base, a roller mechanism, a flux filling mechanism, and a rolling closure mechanism; a metal outer skin is rolled into a U-shape by the roller mechanism, and the flux filling mechanism fills flux into the U-shaped metal outer skin; a detection mechanism and a repair mechanism are provided on the base; the detection mechanism detects whether the welding wire gap leaks after the opening is closed; the repair mechanism repairs the leaking gap by welding; this invention clamps the welding wire with a lower sealing block and an upper sealing block, and then extracts air from around the welding wire. When the welding wire joint is not tight, air leaks inside the welding wire, and a pressure sensor detects the pressure change, thus detecting the loose welding wire joint. Simultaneously, a laser emitter emits a laser beam to melt the joint of the welding wire, thereby repairing the loose welding wire joint.

Description

Technical Field

[0001] This invention relates to the field of welding wire production equipment technology, and in particular to a welding wire powder filling device and filling method. Background Technology

[0002] Hardface welding flux-cored wire is a welding material specifically designed for strengthening wear-resistant surfaces. The wire deposits a high-hardness alloy layer on the surface of the base material, thereby significantly improving the wear resistance, corrosion resistance, and high-temperature resistance of the equipment. The core structure of hardface welding flux-cored wire is a flux core wrapped in a metal outer sheath, filled with wear-resistant alloy powders such as chromium carbide, tungsten carbide, and ferroboron, supplemented with functional components such as arc stabilizers and slag-forming agents to ensure a stable welding process.

[0003] The welding wire powder filling device rolls the metal outer skin into a U-shape multiple times, and then fills the U-shaped metal outer skin with powder. The powder-filled U-shaped metal outer skin is rolled and closed by multiple sets of rollers, and the joint is sealed by mechanical interlocking, thus the flux-cored welding wire is initially formed. The initially formed welding wire is then reduced to the target diameter through multiple drawing processes, while improving the surface finish and concentricity, to become the finished product.

[0004] When joining U-shaped metal outer skins, the gaps at the joints are often too large. When storing the welding wire, the flux inside the wire is prone to moisture absorption, which reduces welding performance and causes spatter, thus limiting its effectiveness.

[0005] Therefore, we propose a welding wire powder filling device and filling method. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention provides a welding wire powder filling device and filling method, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a welding wire powder filling device, comprising:

[0008] The system comprises a base, a rolling mechanism, a powder filling mechanism, and a rolling closure mechanism; the rolling mechanism rolls the metal outer skin into a U-shape, the powder filling mechanism fills the U-shaped metal outer skin with powder, and finally the rolling closure mechanism continuously rolls the U-shaped metal outer skin to close the opening on the U-shaped metal outer skin.

[0009] The base is equipped with a detection mechanism and a repair mechanism; the detection mechanism detects whether the welding wire gap leaks after the opening is closed; the repair mechanism repairs the leaking welding wire gap by welding.

[0010] Preferably, the detection mechanism includes a first mounting block, a lower sealing block, an upper sealing block, and a pressure sensor; the lower sealing block is fixedly connected to the first mounting block; the upper sealing block is slidably connected to the first mounting block; a clamping motor is fixedly connected to the first mounting block; a spiral rod threadedly engaged with the upper sealing block is fixedly connected to the output end of the clamping motor; a detection cavity is formed on the end faces of the upper and lower sealing blocks that are close to each other; the pressure sensor is fixedly connected to the detection cavity on the upper sealing block; an air pump is fixedly connected to the base; a connection interface is fixedly connected to the upper sealing block; the connection interface communicates with the detection cavity.

[0011] Preferably, the first mounting block is slidably connected to the base; a reciprocating motor is fixedly connected to the base; and a lead screw that is threadedly engaged with the first mounting block is fixedly connected to the output end of the reciprocating motor.

[0012] Preferably, the repair mechanism includes a second mounting block, a movable block, and a laser emitter; the second mounting block is slidably connected to the base; the base is also provided with the reciprocating motor and the lead screw to drive the second mounting block to move; a movable groove is formed on the second mounting block; a movable motor is fixedly connected in the movable groove; the movable block is slidably connected in the movable groove; the output end of the movable motor is fixedly connected to a screw threaded to the movable block; and the laser emitter is fixedly connected to the movable block.

[0013] The welding wire is held in place by the lower and upper sealing blocks. Air around the welding wire is extracted. When the welding wire joint is not tight, the air inside the welding wire will leak. The air pressure sensor detects the change in air pressure, thus detecting that the welding wire joint is not tight. At the same time, the laser emitter emits a laser beam to melt the joint of the welding wire, thereby repairing the part of the welding wire joint that is not tight.

[0014] Preferably, inclined blocks are fixedly connected to both sides of the movable block; a support rod is slidably connected to the inclined block; a support electric push rod is connected between the inclined block and the support rod; and an arc-shaped plate is fixedly connected to the front end of the support rod.

[0015] Preferably, the movable block has a detection groove; a detection block is slidably connected in the detection groove; a detection pressure sensor is fixedly connected to the detection block; a detection rod is slidably connected in the detection block; a detection spring is connected between the detection rod and the detection pressure sensor; and a detection electric push rod is connected between the movable block and the detection block.

[0016] Preferably, a telescopic block is slidably connected to the base; a telescopic electric push rod is connected between the telescopic block and the base; a rotating roller is symmetrically rotatably connected to the telescopic block; a rotating motor is fixedly connected to the telescopic block; and the rotating motor drives the rotating roller to rotate.

[0017] The detection rod and pressure sensor detect whether the joint of the welding wire is directly above the surface. At the same time, the rotating roller drives the welding wire to rotate and adjust the angle of the welding wire to ensure that the joint of the welding wire is directly above the surface. This prevents the weld from not being directly above the surface when the laser emitter repairs the joint.

[0018] A method for filling welding wire flux, applicable to the aforementioned welding wire flux filling device, comprises the following steps:

[0019] S1. The metal outer skin is rolled into a U-shape by the rolling mechanism. Then, the powder filling mechanism fills the U-shaped metal outer skin with powder. Then, the rolling closing mechanism rolls both ends of the U-shaped metal skin, so that the U-shaped metal skin wraps the powder and closes the opening to form a welding wire.

[0020] S2. The upper sealing block moves downward and clamps the welding wire together with the lower sealing block, extracting the air from the detection chamber. When the welding wire joint is not tight, the air inside the welding wire leaks, and the air pressure sensor detects the change in air pressure.

[0021] S3. The arc plate pushes both sides of the welding wire to close the joint of the welding wire. At the same time, the laser emitter emits a laser beam, which melts and binds the joint of the welding wire together.

[0022] The beneficial effects of this invention are:

[0023] 1. This invention clamps the welding wire with a lower sealing block and an upper sealing block. By extracting air around the welding wire, when the welding wire joint is not tight, the air inside the welding wire will leak. The air pressure sensor detects the change in air pressure, thereby detecting that the welding wire joint is not tight. At the same time, the laser emitter emits a laser beam to melt the joint of the welding wire, thereby repairing the part of the welding wire joint that is not tight.

[0024] 2. This invention uses a supporting electric push rod to push a supporting rod, which moves the supporting rod along with the arc-shaped plate. The two arc-shaped plates squeeze the welding wire from both sides of the welding wire. Therefore, while the laser emitter is repairing the weld on the welding wire, the welding wire is squeezed, which closes the weld and improves the repair effect.

[0025] 3. This invention uses a detection rod and a detection pressure sensor to detect whether the joint of the welding wire is directly above the surface. At the same time, a rotating roller drives the welding wire to rotate and adjust the angle of the welding wire to ensure that the joint of the welding wire is directly above the surface. This prevents the weld from not being directly above the surface when the laser emitter repairs the joint. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a welding wire powder filling device according to the present invention;

[0027] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 3 This is a schematic diagram of the structure of the moving block, tilting block, and laser emitter in this invention;

[0029] Figure 4 This is a cross-sectional view of the first mounting block, the upper sealing block, and the lower sealing block in this invention;

[0030] Figure 5 This is a cross-sectional view of the moving block and the detection block in this invention;

[0031] Figure 6 This is a cross-sectional view of the inclined block, support rod, and arc plate in this invention;

[0032] Figure 7 This is a cross-sectional view of the telescopic block and the rotating roller in this invention;

[0033] Figure 8 for Figure 1 Enlarged view of point B in the middle.

[0034] In the diagram: 1. Base; 11. Rolling mechanism; 12. Powder filling mechanism; 13. Rolling closing mechanism; 21. Mounting block No. 1; 22. Lower sealing block; 23. Upper sealing block; 24. Pressure sensor; 26. Detection chamber; 27. Vacuum pump; 28. Connection interface; 29. ​​Reciprocating motor; 31. Mounting block No. 2; 32. Moving block; 33. Laser emitter; 4. Inclined block; 41. Support rod; 42. Support electric push rod; 43. Arc plate; 5. Detection groove; 51. Detection block; 52. Detection pressure sensor; 53. Detection rod; 54. Detection spring; 55. Detection electric push rod; 56. Telescopic block; 57. Telescopic electric push rod; 58. Rotating roller; 59. Rotating motor; 6. Clamping motor. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1: Refer to the appendix of the instruction manual. Figure 1 , 2 3, 4, 5, 6 and 7, a welding wire powder filling device, comprising:

[0037] The base 1, the rolling mechanism 11, the powder filling mechanism 12, and the rolling closure mechanism 13; the rolling mechanism 11 rolls the metal outer skin into a U-shape, the powder filling mechanism 12 fills the U-shaped metal outer skin with powder, and finally the rolling closure mechanism 13 continuously rolls the U-shaped metal outer skin to close the opening on the U-shaped metal outer skin.

[0038] The base 1 is equipped with a detection mechanism and a repair mechanism; the detection mechanism detects whether there is leakage in the gap of the welding wire after the opening is closed; the repair mechanism repairs the leaking gap of the welding wire by fusion welding.

[0039] In this invention, the detection mechanism includes a first mounting block 21, a lower sealing block 22, an upper sealing block 23, and a pressure sensor 24; the lower sealing block 22 is fixedly connected to the first mounting block 21; the upper sealing block 23 is slidably connected to the first mounting block 21; a clamping motor 6 is fixedly connected to the first mounting block 21; a spiral rod that is threadedly engaged with the upper sealing block 23 is fixedly connected to the output end of the clamping motor 6; a detection cavity 26 is formed on the end faces of the upper sealing block 23 and the lower sealing block 22 that are close to each other; the pressure sensor 24 is fixedly connected to the detection cavity 26 on the upper sealing block 23; a vacuum pump 27 is fixedly connected to the base 1; a connection interface 28 is fixedly connected to the upper sealing block 23; the connection interface 28 is connected to the detection cavity 26.

[0040] In this invention, mounting block 21 is slidably connected to base 1; reciprocating motor 29 is fixedly connected to base 1; and a lead screw that is threadedly engaged with mounting block 21 is fixedly connected to the output end of reciprocating motor 29.

[0041] In this invention, the repair mechanism includes a second mounting block 31, a moving block 32, and a laser emitter 33; the second mounting block 31 is slidably connected to the base 1; the base 1 is also provided with a reciprocating motor 29 and a lead screw to drive the second mounting block 31 to move; a moving groove is provided on the second mounting block 31; a moving motor is fixedly connected in the moving groove; the moving block 32 is slidably connected in the moving groove; a screw threadedly engaged with the moving block 32 is fixedly connected to the output end of the moving motor; the laser emitter 33 is fixedly connected to the moving block 32.

[0042] In this invention, the metal outer skin is rolled into a U-shape by the rolling mechanism 11. Then, the powder filling mechanism 12 fills the U-shaped metal outer skin with powder. Then, the rolling closing mechanism 13 rolls both ends of the U-shaped metal skin, so that the U-shaped metal skin wraps the powder and closes the opening to form a welding wire. Then, the welding wire moves forward and is located between the upper sealing block 23 and the lower sealing block 22. Then, the clamping motor 6 drives the corresponding screw rod to rotate, so that the upper sealing block 23 moves downward. The upper sealing block 23 and the lower sealing block 22 clamp the welding wire. The output end of the air pump 27 is connected to the connection interface 28 through the connecting pipe. The air pump 27 draws air from the detection chamber 26, so that the air pressure in the detection chamber 26 decreases and maintains a low air pressure. The air pressure sensor 24 detects the air pressure in the detection chamber 26 in real time. When the joint of the welding wire is not tight, the air in the welding wire will leak into the detection chamber 26, causing the air pressure in the detection chamber 26 to change. This invention detects whether the joint of the welding wire is tight based on whether the air pressure in the detection chamber 26 changes.

[0043] The moving motor on the second mounting block 31 drives the corresponding screw to rotate, causing the moving block 32 to move laterally with the laser emitter 33, so that the laser emitter 33 moves above the welding wire. Then the laser emitter 33 emits a laser beam. The high-energy laser beam melts the welding wire joint together, thereby eliminating the large gap at the welding wire joint.

[0044] In this invention, when the upper sealing block 23 and the lower sealing block 22 are being tested, the first mounting block 21 moves forward along with the welding wire under the drive of the reciprocating motor 29. After the test is completed, the first mounting block 21 returns to its original position. Similarly, the second mounting block 31 moves forward along with the welding wire. After the repair is completed, the second mounting block 31 returns to its original position.

[0045] The present invention clamps the welding wire with the lower sealing block 22 and the upper sealing block 23. When the air around the welding wire is extracted, the air inside the welding wire will leak when the joint of the welding wire is not tight. The air pressure sensor 24 detects the change in air pressure, thereby detecting that the joint of the welding wire is not tight. At the same time, the laser emitter 33 emits a laser beam to melt the joint of the welding wire, thereby repairing the part of the welding wire joint that is not tight.

[0046] Example 2: Based on Example 1, in this invention, inclined blocks 4 are fixedly connected to both sides of the movable block 32; a support rod 41 is slidably connected to the inclined block 4; a support electric push rod 42 is connected between the inclined block 4 and the support rod 41; and an arc plate 43 is fixedly connected to the front end of the support rod 41.

[0047] In this invention, a detection groove 5 is provided on the movable block 32; a detection block 51 is slidably connected in the detection groove 5; a detection pressure sensor 52 is fixedly connected to the detection block 51; a detection rod 53 is slidably connected in the detection block 51; a detection spring 54 is connected between the detection rod 53 and the detection pressure sensor 52; and a detection electric push rod 55 is connected between the movable block 32 and the detection block 51.

[0048] In this invention, a telescopic block 56 is slidably connected to the base 1; a telescopic electric push rod 57 is connected between the telescopic block 56 and the base 1; a rotating roller 58 is symmetrically rotatably connected to the telescopic block 56; a rotating motor 59 is fixedly connected to the telescopic block 56; and the rotating motor 59 drives the rotating roller 58 to rotate.

[0049] In this invention, the electric push rod 42 pushes the support rod 41, causing the support rod 41 to move along with the arc plate 43. As a result, the two arc plates 43 squeeze the welding wire from both sides. Therefore, while the laser emitter 33 repairs the weld on the welding wire, the welding wire is squeezed, causing the weld on the welding wire to close and improving the repair effect.

[0050] In this invention, the detection electric push rod 55 drives the detection block 51 to move back and forth, and the detection block 51 moves the detection rod 53. The lower end of the detection rod 53 contacts the welding wire. The detection rod 53 slides across the welding wire, and the pressure is transmitted to the detection pressure sensor 52 through the detection spring 54. The pressure received by the detection pressure sensor 52 is relatively gentle. The lower end of the detection rod 53 slides across the joint of the welding wire, and the pressure information received by the detection pressure sensor 52 fluctuates sharply. Based on the pressure change of the detection pressure sensor 52, it is detected whether the joint of the welding wire is directly above.

[0051] Two rotating rollers 58 are in contact with the welding wire. When the weld seam of the welding wire is not detected to be directly above, the rotating motor 59 drives the rotating rollers 58 to rotate, thereby causing the welding wire to rotate until the joint is directly above.

[0052] The present invention uses a detection rod 53 and a detection pressure sensor 52 to detect whether the joint of the welding wire is directly above. At the same time, the rotating roller 58 drives the welding wire to rotate and adjusts the angle of the welding wire to ensure that the joint of the welding wire is directly above, thereby preventing the weld from not being directly above when the laser emitter 33 repairs the joint.

[0053] Example 3: A method for filling welding wire powder, applicable to the above-mentioned welding wire powder filling device, the steps of which are as follows:

[0054] S1. The metal outer skin is rolled into a U-shape by the rolling mechanism 11. Then, the powder filling mechanism 12 fills the U-shaped metal outer skin with powder. Then, the rolling closing mechanism 13 rolls both ends of the U-shaped metal skin, so that the U-shaped metal skin wraps the powder and closes the opening to form a welding wire.

[0055] S2. The upper sealing block 23 moves downward and clamps the welding wire together with the lower sealing block 22, extracting the air from the detection chamber 26. When the welding wire joint is not tight, the air inside the welding wire leaks, and the air pressure sensor 24 detects the change in air pressure.

[0056] S3, the arc plate 43 pushes both sides of the welding wire to close the joint of the welding wire, and at the same time the laser emitter 33 emits a laser beam to melt and bond the joint of the welding wire together.

[0057] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding wire powder filling device, characterized in that: include The base (1), the rolling mechanism (11), the powder filling mechanism (12), and the rolling closure mechanism (13) are as follows: the rolling mechanism (11) rolls the metal outer skin into a U-shape, the powder filling mechanism (12) fills the U-shaped metal outer skin with powder, and finally the rolling closure mechanism (13) continuously rolls the U-shaped metal outer skin to close the opening on the U-shaped metal outer skin. The base (1) is provided with a detection mechanism and a repair mechanism; the detection mechanism detects whether the welding wire gap leaks after the opening is closed; the repair mechanism repairs the leaking gap by welding. The detection mechanism includes a first mounting block (21), a lower sealing block (22), an upper sealing block (23), and a pressure sensor (24); the lower sealing block (22) is fixedly connected to the first mounting block (21); the upper sealing block (23) is slidably connected to the first mounting block (21); a clamping motor (6) is fixedly connected to the first mounting block (21); a spiral rod threadedly connected to the output end of the clamping motor (6) is fixedly connected to the upper sealing block (23); a detection cavity (26) is opened on the end faces of the upper sealing block (23) and the lower sealing block (22) that are close to each other; the pressure sensor (24) is fixedly connected to the detection cavity (26) on the upper sealing block (23); a vacuum pump (27) is fixedly connected to the base (1); a connection interface (28) is fixedly connected to the upper sealing block (23); the connection interface (28) is connected to the detection cavity (26); The first mounting block (21) is slidably connected to the base (1); a reciprocating motor (29) is fixedly connected to the base (1); the output end of the reciprocating motor (29) is fixedly connected to a lead screw that is threadedly engaged with the first mounting block (21); The repair mechanism includes a second mounting block (31), a moving block (32), and a laser emitter (33); the second mounting block (31) is slidably connected to the base (1); the base (1) is also provided with the reciprocating motor (29) and a lead screw to drive the second mounting block (31) to move; the second mounting block (31) has a moving groove; the moving motor is fixedly connected in the moving groove; the moving block (32) is slidably connected in the moving groove; the output end of the moving motor is fixedly connected with a screw threaded to the moving block (32); the laser emitter (33) is fixedly connected to the moving block (32); Inclined blocks (4) are fixedly connected to both sides of the movable block (32); a support rod (41) is slidably connected to the inclined block (4); a support electric push rod (42) is connected between the inclined block (4) and the support rod (41); an arc plate (43) is fixedly connected to the front end of the support rod (41).

2. The welding wire powder filling device according to claim 1, characterized in that: The movable block (32) is provided with a detection groove (5); a detection block (51) is slidably connected in the detection groove (5); a detection pressure sensor (52) is fixedly connected to the detection block (51); a detection rod (53) is slidably connected in the detection block (51); a detection spring (54) is connected between the detection rod (53) and the detection pressure sensor (52); and a detection electric push rod (55) is connected between the movable block (32) and the detection block (51).

3. The welding wire powder filling device according to claim 2, characterized in that: A telescopic block (56) is slidably connected to the base (1); a telescopic electric push rod (57) is connected between the telescopic block (56) and the base (1); a rotating roller (58) is symmetrically rotatably connected to the telescopic block (56); a rotating motor (59) is fixedly connected to the telescopic block (56); the rotating motor (59) drives the rotating roller (58) to rotate.

4. A method for filling welding wire flux, applicable to the welding wire flux filling device according to any one of claims 1-3, characterized in that: The steps of this method are as follows: S1. The metal outer skin is rolled into a U-shape by the rolling mechanism (11), and then the powder filling mechanism (12) fills the U-shaped metal outer skin with powder. Then the rolling closing mechanism (13) rolls the two ends of the U-shaped metal skin so that the U-shaped metal skin wraps the powder and closes the opening to form a welding wire. S2. The upper sealing block (23) moves downward and clamps the welding wire together with the lower sealing block (22), extracting the air in the detection chamber (26). When the welding wire joint is not tight, the air in the welding wire leaks, and the air pressure sensor (24) detects the change in air pressure. S3, the arc plate (43) pushes the two sides of the welding wire to close the joint of the welding wire, while the laser emitter (33) emits a laser beam to melt and bond the joint of the welding wire together.

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