Long and straight welding wire storage and automatic wire feeding system

Abstract

The utility model relates to a long and straight welding wire storage and automatic wire feeding system, and belongs to the technical field of welding. According to the technical scheme, the automatic welding wire feeding device comprises an automatic welding wire bin, an automatic wire feeding machine and a wire feeding gun unit which are sequentially connected in a matched mode, a material shifting unit shifts welding wires from the automatic welding wire bin to a wire pushing position, the material pushing unit supplies the welding wires to the automatic wire feeding machine from the wire pushing position of the automatic welding wire bin, and the automatic wire feeding machine conveys the welding wires to the wire feeding gun unit. The automatic welding device has the advantages that the automatic welding device is particularly suitable for automatic continuous welding operation under severe working conditions such as surfacing and hard surface repairing, the labor intensity of manually supplementing welding wires is reduced, the cost is reduced, and the production efficiency and the machining quality are improved.

Description

Technical Field

[0001] This utility model relates to a long straight welding wire storage and automatic wire feeding system, belonging to the field of welding technology. Background Technology

[0002] In the industrial manufacturing sector, Stellite alloys are widely used for surface cladding of components in industries such as petrochemicals, aerospace, and energy due to their excellent wear resistance, high-temperature resistance, and corrosion resistance. The cladding process typically uses large-diameter Stellite straight wire as filler material, and the deposition is completed through a wire feeding system in conjunction with welding equipment. However, existing wire feeding systems have many technical problems in Stellite alloy welding applications, affecting welding quality and efficiency.

[0003] 1. Poor wire feeding stability: Due to the high hardness and rigidity of Stellite alloy welding wire, straightness cannot be guaranteed. Existing wire feeding methods, such as pushing or pulling, are prone to wire jamming, blockage, slippage, or uneven wire feeding when feeding wire over long distances, resulting in unstable welding process and affecting the quality of the weld layer.

[0004] 2. Poor wire feeding continuity: Existing automatic wire feeding systems are mainly designed or optimized for soft materials and are typically only suitable for coiled welding wire. Large-diameter Stellite alloy straight welding wire, due to its high hardness and rigidity, is easily broken and is usually supplied in fixed-length straight wire form. These characteristics make existing automatic wire feeding systems incompatible. When using conventional wire feeding methods for surfacing, frequent manual replenishment of welding wire is required when it runs out, affecting the continuity of the surfacing operation, reducing surfacing efficiency, and resulting in more weld joints, which affects weld quality. Utility Model Content

[0005] The purpose of this utility model is to provide a long straight welding wire storage and automatic wire feeding system, which is particularly suitable for automated continuous welding operations under harsh working conditions such as surfacing and hard surface repair. It reduces the labor intensity of manual replenishment of welding wire, lowers costs, improves production efficiency and processing quality, and solves the above-mentioned technical problems existing in the background art.

[0006] The technical solution of this utility model is:

[0007] A long straight welding wire storage and automatic wire feeding system includes an automatic welding wire hopper, an automatic wire feeder, and a wire feeding gun unit connected in sequence. A feeding unit feeds welding wire from the automatic welding wire hopper to a pushing position, and a pushing unit supplies welding wire from the pushing position of the automatic welding wire hopper to the automatic wire feeder. The automatic wire feeder delivers the welding wire to the wire feeding gun unit. The automatic welding wire hopper includes a hopper base unit. A front clamping unit is installed at the front end of the front of the hopper base unit, a middle baffle is installed in the middle, and a rear clamping unit is installed at the rear end. A material level detection unit is installed at the front end of the back of the hopper base unit, and a feeding unit is installed at the middle of the back of the hopper base unit. An air distribution block unit and a feeding cylinder solenoid valve unit are installed between the material level detection unit and the feeding unit. A pushing unit is installed at the rear of the back of the hopper base unit, and a pushing cylinder solenoid valve unit is installed between the feeding unit and the pushing unit. A rear cover is installed on the back of the hopper base unit with wing bolts.

[0008] The automatic wire feeder includes a welding wire detection switch, a switch base, and a wire feeder; the switch base is installed on the left side of the wire feeder, the welding wire detection switch is connected to the wire feeder through the switch base, and the wire feeding gun unit is installed on the right side of the wire feeder; the middle hole of the welding wire detection switch is coaxial with the middle holes of the rear guide nozzle, front guide nozzle, and middle guide nozzle in the wire feeder and the middle holes of the wire feeding gun and wire feeding nozzle in the wire feeding gun unit;

[0009] The wire feeding gun unit includes a wire feeding gun holder, a wire feeding gun, a wire holding unit, a wire feeding nozzle, a wire pressure spring, an upper clamp, a lower clamp, a pressure rod, and a pressure rod pin. The wire feeding gun holder is installed on the wire feeding machine base of the wire feeder. The wire feeding gun is connected to the wire feeding gun holder by threads. The wire feeding nozzle is installed at the front end of the wire feeding gun. The upper clamp and the lower clamp are clamped to the wire feeding gun by screws. The pressure rod is installed on the upper clamp through a pressure rod pin. A wire pressure spring is installed between the pressure rod and the upper clamp.

[0010] Furthermore, the hopper base unit includes a hopper bottom plate and a hopper upright plate. The hopper bottom plate is installed below the hopper upright plate, and a front baffle is installed on the front end face of the hopper bottom plate and the hopper upright plate. A hopper guide nozzle is fixedly provided in the hole of the front baffle. A rear limiting plate is installed behind the hopper upright plate, with its bottom surface flush with the hopper bottom plate. A mounting base is installed on the back of the hopper upright plate, with its height flush with the front baffle.

[0011] Furthermore, the front clamping unit and the rear clamping unit are symmetrical in structure. The rear clamping unit includes a torsion spring, a shaft, a pressure cover, a protective cover, a rear baffle, a rocker arm, and a mounting knob plunger. The shaft is fixed in the shaft hole of the rear baffle. The torsion spring is sleeved on the shaft. The rocker arm is sleeved on the shaft and located outside the torsion spring. The torsion rod of the torsion spring presses against the rocker arm. A pressure cover is installed on the end face of the shaft to restrict the axial movement of the rocker arm. A protective cover is installed on the rocker arm to cover the torsion spring inside. A knob plunger is installed on the other end of the rocker arm. The knob plunger is located in the arc-shaped hole on the rear baffle.

[0012] Furthermore, the feeding unit includes a guide frame, a feeding plate hopper position detection unit, a feeding plate push position detection unit, a feeding power unit, a feeding lever mechanism, a feeding groove plate, and a connecting seat. The feeding groove plate is installed within multiple guide frames, which are mounted on the hopper upright plate. The guide grooves on the guide frames provide limiting guidance in the thickness direction of the feeding groove plate. Wear-resistant plates are installed in the feeding groove of the feeding groove plate. The feeding cylinder in the feeding power unit is mounted on the hopper upright plate, and the connecting seat is mounted on the piston rod flange end face of the feeding cylinder. The feeding lever seat in the feeding lever mechanism is mounted on the hopper upright plate. The lever is connected to the lever seat via a fixed pin. One end of the lever is connected to the long slot of the connecting seat via a sliding pin, and the other end of the lever is connected to the long hole on the material feeding slot plate via a feeding pin. In the material feeding plate hopper level detection unit, the material feeding plate hopper level detection switch is installed on the hopper upright plate via a switch bracket one, and the material feeding plate hopper level sensing block is installed on the feeding slot plate. In the material feeding plate push position detection unit, the material feeding plate push position detection switch is installed on the hopper upright plate via a switch bracket two, and the material feeding plate push position sensing block is installed on the feeding slot plate.

[0013] Furthermore, the pushing unit includes a pushing cylinder, a pushing guide groove, and a pushing plate. The pushing cylinder is installed on the upright plate of the hopper, and the pushing plate is installed at the front end of the pushing cylinder. The pushing plate slides in the pushing guide groove.

[0014] This invention can store and automatically feed Stellite coarse welding wire with a diameter of φ4.8mm and below. The feeding unit moves the welding wire from the automatic wire hopper to the push position, and the push unit supplies the welding wire (bar) from the push position to the automatic wire feeder. The automatic wire feeder delivers the welding wire to the wire feeding gun unit. The wire feeding gun unit has an elastic clamp at its front end to ensure that short welding wires do not fall into the molten pool or become skewed, thus affecting welding stability. When the welding wire is about to run out, a wire exhaustion detection switch issues a command, and the push unit pushes the next welding wire into the automatic wire feeder, connecting it end-to-end with the previous one. The automatic wire feeder ensures continuous and stable feeding of the welding wire and can tolerate a certain degree of bending in the welding wire.

[0015] The beneficial effects of this utility model are: it is particularly suitable for automated continuous welding operations under harsh working conditions such as surfacing and hard surface repair, reducing the labor intensity of manually replenishing welding wire, lowering costs, and improving production efficiency and processing quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the usage environment of an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall embodiment of the present utility model.

[0018] Figure 3This is a front view of the automatic welding wire hopper according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the back of the automatic welding wire hopper (with the protective cover removed) according to an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the silo base unit according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the feeding unit in an embodiment of the present utility model;

[0022] Figure 7 This is a schematic diagram of the internal structure of the feeding unit in an embodiment of this utility model;

[0023] Figure 8 This is a schematic diagram of the power and transmission system of the material feeding unit in this utility model;

[0024] Figure 9 This is a schematic diagram of the arrangement of the material feeding unit detection system according to an embodiment of the present invention;

[0025] Figure 10 This is a schematic diagram of the welding wire clamping in an embodiment of this utility model;

[0026] Figure 11 This is a schematic diagram of the feeding unit of this utility model;

[0027] Figure 12 This is a schematic diagram of the material level detection switch according to an embodiment of the present invention;

[0028] Figure 13 This is a schematic diagram of the rear clamping unit in an embodiment of the present invention;

[0029] Figure 14 This is a schematic diagram of the overall automatic wire feeder of this utility model;

[0030] Figure 15 This is a structural diagram of the automatic wire feeder and wire feeding gun unit according to an embodiment of the present utility model;

[0031] Figure 16 This is a cross-sectional view of the automatic wire feeder transmission system according to an embodiment of the present invention;

[0032] Figure 17 This is a schematic diagram of the transmission system and welding wire guiding system of the automatic wire feeder according to an embodiment of the present utility model;

[0033] Figure 18 This is a schematic diagram of the wire feeding gun unit structure according to an embodiment of the present utility model;

[0034] Figure 19 This is a schematic diagram of the welding wire holding unit and the wire feeding nozzle structure according to an embodiment of the present utility model;

[0035] In the diagram: 1. Workpiece; 2. Robotic arm; 3. Welding torch; 4. Three-axis adjustment mechanism; 5. This utility model; 6. Automatic wire feeder; 7. Wire feeder unit; 8. Feeder nozzle; 9. Front observation window; 10. Middle observation window; 11. Unloading key; 12. Magnet; 13. Rear cover; 14. Rear clamping unit; 15. Rear observation window; 16. Observation window locking knob; 17. Rear unloading port; 18. Wing bolt; 19. Middle baffle; 20. Middle unloading port; 21. Front clamping unit; 23. Switch bracket; 24. Front unloading port; 25. Material level detection unit; 26. Gas distribution block. Unit 27, Material Feeding Cylinder Solenoid Valve Unit 28, Material Feeding Unit 29, Material Pushing Cylinder Solenoid Valve Unit 30, Material Pushing Unit 31, Material Hopper Base Unit 32, Rear Limiting Plate 33, Material Hopper Vertical Plate 34, Material Hopper Bottom Plate 35, Mounting Base 36, Front Baffle 37, Guide Frame 38, Material Feeding Plate Material Hopper Position Detection Unit 39, Material Feeding Plate Pushing Position Detection Unit 40, Material Feeding Power Unit 41, Pulley Mechanism 42, Material Feeding Groove Plate 43, Material Feeding Cylinder 44, Connecting Seat 45, Sliding Pin 46, Pulley 47, Pulley Pin 48, Pulley Seat 49. 50. Fixed pin shaft; 51. Adjustable stop block; 52. Material feeder plate hopper level detection switch; 53. Material feeder plate hopper level sensor block; 54. Material feeder plate push position sensor block; 55. Material feeder plate push position detection switch; 56. Push cylinder; 57. Push guide groove; 58. Push plate; 59. Material level detection switch; 60. Material level switch mounting base; 61. Torsion spring; 62. Shaft one; 63. Pressure cover; 64. Protective cover; 65. Rear baffle; 66. Swing rod; 67. Knob plunger; 68. Welding wire detection switch; 69. Switch base; 70. Wire feeder; 71. Switch bracket two; 72. Wire feed motor. 73. Reducer, 74. Spring, 75. Rear guide nozzle, 76. Pressure roller pin, 77. Wire feed roller, 78. Clamping nut, 79. Wire feeder base, 80. Drive gear, 81. Front guide nozzle, 82. Pin, 83. Cage, 84. Pressure roller, 85. Middle guide nozzle, 86. Driven gear one, 87. Driven gear two, 88. Wire feed gun base, 89. Wire feed gun, 90. Welding wire holding unit, 91. Wire feed nozzle, 92. Pressure spring, 93. Upper clamp, 94. Lower clamp, 95. Pressure rod, 96. Pressure rod pin, 97. Adjustable stop iron base, 98. Bearing, 99. Shaft two, 100. Wear-resistant plate. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] See attached document Figure 2-4This embodiment provides a long straight welding wire storage and automatic wire feeding system, comprising an automatic welding wire hopper 6, an automatic wire feeder 7, and a wire feeding gun unit 8 connected in sequence. A feeding unit 29 feeds welding wire from the automatic welding wire hopper 6 to a pushing position, and a pushing unit 31 supplies welding wire from the pushing position of the automatic welding wire hopper 6 to the automatic wire feeder 7. The automatic wire feeder 7 then delivers the welding wire to the wire feeding gun unit 8. The automatic welding wire hopper 6 includes a hopper base unit 32, with a front clamping unit 23 installed at the front end and a middle baffle installed in the middle. 20, rear end installation of clamping unit 15; a material level detection unit 26 is installed at the front end of the back of the hopper base unit 32, a material feeding unit 29 is installed at the middle position of the back of the hopper base unit 32, an air distribution block unit 27 and a material feeding cylinder solenoid valve unit 28 are installed between the material level detection unit 26 and the material feeding unit 29, a material pushing unit 31 is installed at the rear of the back of the hopper base unit 32, a material pushing cylinder solenoid valve unit 30 is installed between the material feeding unit 29 and the material pushing unit 31, and the rear cover 14 is installed on the back of the hopper base unit 32 with wing bolts 19;

[0038] See attached document Figure 14-18 The automatic wire feeder 7 includes a welding wire detection switch 68, a switch base 69, and a wire feeder 70. The switch base 69 is installed on the left side of the wire feeder 70, and the welding wire detection switch 68 is connected to the wire feeder 70 through the switch base 69. The wire feeding gun unit 8 is installed on the right side of the wire feeder 70. The middle hole of the welding wire detection switch 68 is coaxial with the middle holes of the rear guide nozzle 75, the front guide nozzle 81, and the middle guide nozzle 85 in the wire feeder 70, and with the middle holes of the wire feeding gun 89 and the wire feeding nozzle 91 in the wire feeding gun unit 8.

[0039] See attached document Figure 18 , 19 The wire feeding gun unit 8 includes a wire feeding gun holder 88, a wire feeding gun 89, a wire holding unit 90, a wire feeding nozzle 91, a wire pressure spring 92, an upper clamp 93, a lower clamp 94, a pressure rod 95, and a pressure rod pin 96. The wire feeding gun holder 88 is mounted on the wire feeding machine base 79 of the wire feeder 70. The wire feeding gun 89 is connected to the wire feeding gun holder 88 by threads. The wire feeding nozzle 91 is mounted on the front end of the wire feeding gun 89. The upper clamp 93 and the lower clamp 94 are clamped to the wire feeding gun 89 by screws. The pressure rod 95 is mounted on the upper clamp 93 by the pressure rod pin 96. The wire pressure spring 92 is installed between the pressure rod 95 and the upper clamp 93.

[0040] See attached document Figure 5The hopper base unit 32 includes a hopper bottom plate 35 and a hopper upright plate 34. The hopper bottom plate 35 is installed below the hopper upright plate 34. A front baffle 37 is installed on the front end face of the hopper bottom plate 35 and the hopper upright plate 34. A hopper guide nozzle 9 is fixedly provided in the hole of the front baffle 37. A rear limiting plate 33 is installed behind the hopper upright plate 34, with its bottom surface flush with the hopper bottom plate 35. A mounting base 36 is installed on the back of the hopper upright plate 34, with its height flush with the front baffle 37.

[0041] See attached document Figure 3 , 13 The front clamping unit 23 and the rear clamping unit 15 are symmetrical in structure. The rear clamping unit 15 includes a torsion spring 61, a shaft 62, a pressure cover 63, a protective cover 64, a rear baffle 65, a rocker arm 66, and a knob plunger 67. The shaft 62 is fixed in the shaft hole of the rear baffle 65. The torsion spring 61 is sleeved on the shaft 62. The rocker arm 66 is sleeved on the shaft 62 and located outside the torsion spring 61. The torsion rod of the torsion spring 61 is pressed against the rocker arm 66. A pressure cover 63 is installed on the end face of the shaft 62. The pressure cover 63 restricts the axial movement of the rocker arm 66. A protective cover 64 is installed on the rocker arm 66 to cover the torsion spring 61 inside. A knob plunger 67 is installed on the other end of the rocker arm 66. The knob plunger 67 is located in the arc-shaped hole on the rear baffle 65.

[0042] See attached document Figure 4 , 6 7, 8, and 9, the feeding unit 29 includes a guide frame 38, a feeding plate hopper position detection unit 39, a feeding plate push position detection unit 40, a feeding power unit 41, a feeding lever mechanism 42, a feeding groove plate 43, and a connecting seat 45. The feeding groove plate 43 is installed inside four guide frames 38, which are installed on the hopper upright plate 34. The guide grooves on the guide frames 38 provide limiting guidance in the thickness direction of the feeding groove plate 43. Wear-resistant plates 100 are installed in the feeding groove of the feeding groove plate 43. The feeding cylinder 44 in the feeding power unit 41 is installed on the hopper upright plate 34, and the connecting seat 45 is installed on the piston rod flange end face of the feeding cylinder 44. The feeding lever seat 49 in the feeding lever mechanism 42 is installed on the hopper upright plate 34. The lever 47 is connected to the lever seat 49 via a fixed pin 50. One end of the lever 47 is connected to the long slot of the connecting seat 45 via a sliding pin 46, and the other end of the lever 47 is connected to the long hole on the feeding slot plate 43 via a feeding pin 48. The feeding plate hopper level detection switch 52 in the feeding plate hopper level detection unit 39 is mounted on the hopper upright plate 34 via a switch bracket 1 24, and the feeding plate hopper level sensing block 53 in the feeding plate hopper level detection unit 39 is mounted on the feeding slot plate 43. The feeding plate push position detection switch 55 in the feeding plate push position detection unit 40 is mounted on the hopper upright plate 34 via a switch bracket 2 71, and the feeding plate push position sensing block 54 in the feeding plate push position detection unit 40 is mounted on the feeding slot plate 43. An adjustable stop iron seat 97 is installed on the hopper upright plate 34, and an adjustable stop iron 51 is installed at the threaded hole of the adjustable stop iron seat 97.

[0043] See attached document Figure 4 , 11 The pushing unit 31 includes a pushing cylinder 56, a pushing guide groove 57, and a pushing plate 58. The pushing cylinder 56 is installed on the hopper upright plate 34, and the pushing plate 58 is installed at the front end of the pushing cylinder 56. The pushing plate 58 slides in the pushing guide groove 57.

[0044] See attached document Figure 4 , 12 The material level detection unit 26 has a material level switch mounting base 60 mounted on the silo upright plate 34, and a material level detection switch 59 mounted on the material level switch mounting base 60, which can slide up and down along the long groove of the material level switch mounting base 60.

[0045] See attached document Figure 3 , 4 A front observation window 10 is installed in the slot between the front clamping unit 23 and the hopper base unit 32. Middle observation windows 11 are installed in the slots between the front clamping unit 23 and the middle baffle 20, and between the middle baffle 20 and the rear clamping unit 15. A rear observation window 16 is installed in the slot between the rear clamping unit 15 and the hopper base unit 32. After all observation windows are in place, they are locked using the observation window locking knob 17. A magnet 13 is installed on the middle baffle 20, and a material ejection key 12 is placed on the magnet 13.

[0046] See attached document Figure 14 , 15 16, 17. The wire feeder 70 includes a wire feeding motor 72, a reducer 73, a spring 74, a rear guide nozzle 75, a pressure roller pin 76, a wire feeding roller 77, a clamping nut 78, a wire feeder base 79, a drive gear 80, a front guide nozzle 81, a pin 82, a retainer 83, a pressure roller 84, a middle guide nozzle 85, a driven gear one 86, and a driven gear two 87. The reducer 73 is installed on the shaft hole of the wire feeder base 79, and the wire feeding motor 72 is connected to the reducer 73. The rear guide nozzle 75 is installed in the left shaft hole of the wire feeder base 79, the front guide nozzle 81 is installed in the right shaft hole of the wire feeder base 79, and the middle guide nozzle 85 is installed in the middle shaft hole of the wire feeder base 79; the drive gear... Wheel 80 is connected to reducer 73. Bearing 98 and shaft 99 are installed on the wire feeder base 79. Driven gear 86 and driven gear 87 are respectively fitted on their respective bearings 98. Drive gear 80 meshes with driven gear 86 and driven gear 87 respectively. Wire feeder wheel 77 is respectively fitted on driven gear 86 and driven gear 87 and is tightened with clamping nut 78. Cage 83 is installed on wire feeder base 79 through pin 82. Cage 83 can swing along pin 82. Pressure wheel 84 is installed in the middle hole of cage 83 through pressure wheel pin 76. Under the pressure of spring 74, pressure wheel 84 contacts wire feeder wheel 77.

[0047] See attached document Figure 1 This utility model is installed on the three-axis adjustment mechanism 4 and is used in conjunction with the welding gun 3 on the robot arm 2 to weld the workpiece 1. The automatic welding wire hopper 6 is arranged vertically to store the welding wire. The welding wire is discharged from the bottom of the hopper and the welding wires above fall down in sequence to replenish it.

[0048] In the embodiments, this utility model can complete the storage of large-diameter Stellite alloy straight welding wire, automatic wire dispensing and continuous wire feeding. The specific process is as follows:

[0049] Loading welding wire into the hopper: First, loosen the observation window locking knob 17, remove the middle observation window 11, then adjust the knob plunger 67 in the front clamping unit 23 and the rear clamping unit 15 to the retracted state, fill a certain amount of welding wire into the hopper, push the swing rod 66 in the front clamping unit 23 and the rear clamping unit 15 above the welding wire, adjust the knob plunger 67 to the extended state, so that the cylindrical head of the knob plunger 67 presses against the welding wire; adjust the position of the material level detection switch 59 in the material level switch mounting base 60 so that its position matches the amount of welding wire filled, ensuring that no material shortage alarm will be generated during the automatic wire feeding process.

[0050] Automatic continuous wire feeding: In the initial state, the feeding trough plate 43 is in the feeding position, and the feeding cylinder 44 is in the retracted state. When the feeding cylinder 44 extends, the sliding pin 46 slides from the lower end (near the cylinder mounting surface) of the long groove of the connecting seat 45 to the upper end. The lever 47, with the feeding pin 48 mounted on it, swings downward around the fixed pin 50. The pin 48 slides within the long groove of the feeding trough plate 43, causing the feeding trough plate 43 to move towards the material bin upright plate. The feeding trough plate 43's feeding slot moves from the feeding position to the material bin position. When the end face of the connecting seat 45 hits the adjustable stop 51, the cylinder stops extending. Under the pressure of the knob plunger 67 in the front clamping unit 23 and the rear clamping unit 15, the welding wire in the material bin falls into the feeding slot of the feeding trough plate 43. At this time, the feeding plate material bin position sensor 53 moves with the feeding trough plate 43. When the material feeder plate reaches the detection groove of the material feeder plate hopper position detection switch 52, the material feeder plate hopper position detection switch 52 issues a positioning command, notifying the control system that the material feeding is complete. Subsequently, the material feeder cylinder 44 retracts, and the sliding pin 46 slides from the upper end (away from the cylinder mounting surface) of the long groove of the connecting seat 45 to the lower end. The lever 47, with the end of the material feeder pin 48 mounted on it, swings upward around the fixed pin 50 as the axis. The pin 48 slides in the long groove of the material feeder plate 43, driving the material feeder plate 43 to move away from the material feeder plate upright. The material feeder plate 43's feeding slot moves from the material feeder position to the loading position. When the cylinder retracts to its position, the material feeder plate push position sensor 54 moves with the material feeder plate 43 to the material feeder plate push position detection switch 55 for detection. At the groove, the feeding plate push position detection switch 55 issues a positioning command, notifying the control system that the welding wire has reached the feeding position. The control system controls the piston rod of the push cylinder 56 to retract, and the push plate 58, along with the piston rod of the push cylinder 56, pushes the welding wire along the push guide groove 57 towards the hopper guide nozzle 9. The welding wire passes through the hopper guide nozzle 9 along the wear-resistant plate 100 on the feeding groove plate 43, and continues to pass through the welding wire detection switch 68, the switch base 69, and the rear guide nozzle 75 until it hits between the first set of wire feeding wheels 77 and the pressure wheel 84. When the welding wire passes through the welding wire detection switch 68, the control system issues a command, the wire feeding motor 72 starts, and drives the drive gear 80 to rotate clockwise through the reducer 73. The drive gear 80 drives... Driven gears 86 and 87 rotate together, and the wire feeding wheel rotates clockwise, driving the welding wire forward under the action of the wire feeding wheel 77 and the pressure of the pressure wheel 84. At this time, the pusher cylinder 56 extends, driving the pusher plate 58 to retract. After passing through the middle guide nozzle 85, the welding wire enters between the second set of wire feeding wheels 77 and the pressure wheel 84. The two sets of wire feeding wheels simultaneously drive the welding wire forward. The welding wire passes through the front guide nozzle 81, the wire feeding gun holder 88, the wire feeding gun 89, and the wire feeding nozzle 91. When the welding wire reaches the outlet of the wire feeding nozzle 91, it lifts the pressure bar 95 and passes through the wire feeding nozzle 91 to the welding gun 3 to the welding position. Under the action of the wire pressure spring 92, the pressure bar 95 always applies a fixed downward pressure to the welding wire, keeping the welding wire in place. When the first welding wire is about to be used up, and its rear end passes through the welding wire detection switch 68, the welding wire detection switch 68 sends a signal to the control system, and the control system controls the feeding of the second welding wire.At this time, the piston rod of the pusher cylinder 56 retracts, and the pusher plate 58, along with the piston rod of the pusher cylinder 56, pushes out the second welding wire along the pusher guide groove 57. After passing through the welding wire detection switch 68, it connects with the end face of the previous welding wire. The second welding wire follows the first welding wire through the first set of wire feeding rollers 77 and pressure rollers 84. When the second welding wire passes through the second set of wire feeding rollers 77 and pressure rollers 84, the second welding wire pushes the first welding wire forward as needed until the first welding wire is used up. The above process is then repeated to achieve continuous wire feeding. When the number of welding wires drops below the set range of the material level detection switch 59, the material level detection switch 59 issues a supplementary welding wire alarm.

[0051] Unloading process: First, loosen the observation window locking knob 17, remove the front observation window 10, rear observation window 16 or middle observation window 11, then adjust the knob plunger 67 in the front clamping unit 23 and rear clamping unit 15 to the retracted state, remove the unloading key 12 from the magnet 13, insert the unloading key 12 into the front unloading port 25 and rear unloading port 18 or middle unloading port 21, lift the welding wire upwards, and when the welding wire is lifted out of the groove of the bottom plate 35 of the hopper, remove the welding wire by hand.

Claims

1. A long straight welding wire storage and automatic wire feeding system, characterized in that: The system includes an automatic wire feeder (6), an automatic wire feeder (7), and a wire feeding gun unit (8) connected in sequence. A feeding unit (29) feeds the wire from the automatic wire feeder (6) to a pushing position. A pushing unit (31) supplies the wire from the pushing position of the automatic wire feeder (6) to the automatic wire feeder (7), which then delivers the wire to the wire feeding gun unit (8). The automatic wire feeder (6) includes a feeder base unit (32). A front clamping unit (23) is installed at the front end of the feeder base unit (32), a middle baffle (20) is installed in the middle, and a rear clamping unit (23) is installed at the rear end. 15); A material level detection unit (26) is installed at the front end of the back of the silo base unit (32), a material feeding unit (29) is installed at the middle position of the back of the silo base unit (32), an air distribution block unit (27) and a material feeding cylinder solenoid valve unit (28) are installed between the material level detection unit (26) and the material feeding unit (29), a material pushing unit (31) is installed at the back of the back of the silo base unit (32), a material pushing cylinder solenoid valve unit (30) is installed between the material feeding unit (29) and the material pushing unit (31), and a rear cover (14) is installed on the back of the silo base unit (32) with a wing bolt (19); The automatic wire feeder (7) includes a wire detection switch (68), a switch base (69), and a wire feeder (70); the switch base (69) is installed on the left side of the wire feeder (70), the wire detection switch (68) is connected to the wire feeder (70) through the switch base (69), and the wire feeding gun unit (8) is installed on the right side of the wire feeder (70); The middle hole of the welding wire detection switch (68) is coaxial with the middle holes of the rear guide nozzle (75), front guide nozzle (81) and middle guide nozzle (85) in the wire feeder (70) and the middle holes of the wire feeder gun (89) and wire feed nozzle (91) in the wire feeder unit (8); The wire feeding gun unit (8) includes a wire feeding gun holder (88), a wire feeding gun (89), a wire holding unit (90), a wire feeding nozzle (91), a wire pressure spring (92), an upper clamp (93), a lower clamp (94), a pressure rod (95), and a pressure rod pin (96). The wire feeding gun holder (88) is installed on the wire feeding machine holder (79) of the wire feeder (70). The wire feeding gun (89) is connected to the wire feeding gun holder (88) by a thread. The wire feeding nozzle (91) is installed at the front end of the wire feeding gun (89). The upper clamp (93) and the lower clamp (94) are clamped on the wire feeding gun (89) by screws. The pressure rod (95) is installed on the upper clamp (93) by the pressure rod pin (96). A wire pressure spring (92) is installed between the pressure rod (95) and the upper clamp (93).

2. The long straight welding wire storage and automatic wire feeding system according to claim 1, characterized in that: The hopper base unit (32) includes a hopper bottom plate (35) and a hopper upright plate (34). The hopper bottom plate (35) is installed below the hopper upright plate (34). A front baffle (37) is installed on the front end face of the hopper bottom plate (35) and the hopper upright plate (34). A hopper guide nozzle (9) is fixedly provided in the hole of the front baffle (37). A rear limiting plate (33) is installed behind the hopper upright plate (34), with its bottom surface flush with the hopper bottom plate (35). A mounting base (36) is installed on the back of the hopper upright plate (34), with its height flush with the front baffle (37).

3. A long straight welding wire storage and automatic wire feeding system according to claim 1 or 2, characterized in that: The front clamping unit (23) and the rear clamping unit (15) are structurally symmetrical. The rear clamping unit (15) includes a torsion spring (61), a shaft (62), a pressure cap (63), a protective cover (64), a rear baffle (65), a rocker arm (66), and a mounting knob plunger (67). The shaft (62) is fixed in the shaft hole of the rear baffle (65), the torsion spring (61) is sleeved on the shaft (62), and the rocker arm (66) is sleeved on the shaft (62). Located outside the torsion spring (61), the torsion bar of the torsion spring (61) is pressed against the rocker arm (66). A pressure cap (63) is installed on the end face of the shaft (62). The pressure cap (63) restricts the axial movement of the rocker arm (66). A cover (64) is installed on the rocker arm (66) to cover the torsion spring (61) inside. A knob plunger (67) is installed at the other end of the rocker arm (66). The knob plunger (67) is located in the arc-shaped hole on the rear baffle (65).

4. A long straight welding wire storage and automatic wire feeding system according to claim 1 or 2, characterized in that: The feeding unit (29) includes a guide frame (38), a feeding plate hopper position detection unit (39), a feeding plate push position detection unit (40), a feeding power unit (41), a lever mechanism (42), a feeding groove plate (43), and a connecting seat (45). The feeding groove plate (43) is installed in multiple guide frames (38), and the guide frames (38) are installed on the hopper upright plate (34). The guide grooves on the guide frames (38) provide limiting guidance for the thickness direction of the feeding groove plate (43). Wear-resistant plates (100) are installed in the welding wire feeding groove of the feeding groove plate (43). The feeding cylinder (44) in the feeding power unit (41) is installed on the hopper upright plate (34), and the connecting seat (45) is installed on the piston rod flange end face of the feeding cylinder (44). The lever seat (49) in the lever mechanism (42) is installed on the hopper upright plate (34). The lever (47) in the ) is connected to the lever seat (49) via a fixed pin (50). One end of the lever (47) is connected to the long slot of the connecting seat (45) via a sliding pin (46), and the other end of the lever (47) is connected to the long hole on the material feeding slot plate (43) via a feeding pin (48). The material feeding slot plate level detection switch (52) in the material feeding slot plate level detection unit (39) is installed on the material feeding slot plate level detection unit (39) via a switch bracket (24). On the upright plate (34), the material feeding plate hopper position sensing block (53) in the material feeding plate hopper position detection unit (39) is installed on the material feeding groove plate (43); the material feeding plate push position detection switch (55) in the material feeding plate push position detection unit (40) is installed on the upright plate (34) through the switch bracket two (71), and the material feeding plate push position sensing block (54) in the material feeding plate push position detection unit (40) is installed on the material feeding groove plate (43).

5. A long straight welding wire storage and automatic wire feeding system according to claim 1 or 2, characterized in that: The pushing unit (31) includes a pushing cylinder (56), a pushing guide groove (57) and a pushing plate (58). The pushing cylinder (56) is installed on the upright plate (34) of the hopper. The pushing plate (58) is installed at the front end of the pushing cylinder (56) and slides in the pushing guide groove (57).

Images