Ton barrel net rack feeding and welding device

Abstract

The present application relates to the field of welding device, specifically to a ton barrel net rack feeding and welding device, which comprises a feeding device, a welding mechanism and a triggering mechanism; the feeding device is used for conveying a plurality of to-be-welded rods one and rods two arranged in an array; the welding mechanism comprises a plurality of groups of upper welding assemblies and a plurality of groups of lower welding assemblies arranged side by side, the upper welding assembly comprises a rotating part one, a welding head one and a lifting frame one, and the outer peripheral contour of the rotating part one is a regular polygon; the lower welding assembly comprises a rotating part two, a welding head two and a lifting frame two, and the outer peripheral contour of the rotating part two is a star shape; the triggering mechanism comprises a mounting frame, a rotating shaft one fixedly connected with the rotating part one, a rotating shaft two fixedly connected with the rotating part two, a transmission assembly linking the rotating shaft one and the rotating shaft two, and a plurality of groups of bearing and pushing assemblies uniformly distributed around the rotating shaft one; when conveying the rod, the welding mechanism is triggered by the rod itself to weld the rod, and the feeding and welding processes are automatically matched, so that accurate and effective welding can be performed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding devices, in particular to a ton barrel net rack feeding and welding device. BACKGROUND

[0002] The ton barrel is composed of an inner container and a metal frame. The metal frame is added outside the inner container, which can make the ton barrel more safe and reliable in use. During the production process of the metal frame, a welding device is needed to weld multiple short rods and multiple long rods.

[0003] Chinese patent publication No. CN115302141A discloses an automatic welding production line for IBC ton barrel frame, which comprises a frame feeding mechanism, a frame conveying mechanism, a frame butt welding mechanism, a frame discharging mechanism and a frame lap moving table. The frame butt welding mechanism is used to weld the lapped long rods and short rods.

[0004] However, the above technical solution has the following disadvantages: when welding multiple long rods and multiple short rods in a net-like distribution into a ton barrel frame, the long rods and short rods need to be moved to a position directly opposite the frame butt welding mechanism by controlling the frame conveying mechanism first, and then the frame butt welding mechanism is controlled to extend the welding head from the upper and lower sides to perform butt welding processing. The control precision requirement is high. If the control of the frame conveying mechanism and the frame butt welding mechanism does not match, the welding head cannot be aligned with the welding position of the long rods and short rods, and precise and effective welding cannot be achieved. SUMMARY

[0005] The present application aims to solve the problems in the background art and provides a ton barrel net rack feeding and welding device. When conveying the rod, the rod itself is used to trigger the welding mechanism to weld the rod. The feeding and welding process is automatically matched, and precise and effective welding can be achieved.

[0006] The technical scheme of the present application is a ton barrel net rack feeding and welding device, which comprises a feeding device, a welding mechanism and a triggering mechanism; the feeding device is used for conveying a plurality of to-be-welded rods one and rods two arranged in an array, the rods one and the rods two are perpendicular, the bottom of the rods two and the top of the rods one are in contact and form a welding area at the contact position; the welding mechanism comprises a plurality of groups of upper welding assemblies and a plurality of groups of lower welding assemblies arranged side by side, the upper welding assembly comprises a rotating piece one, a welding head one and a lifting frame one which can be pushed down by the rotating piece two, the outer contour of the rotating piece one is a regular polygon, and the welding head one is arranged at the bottom of the lifting frame one; the lower welding assembly comprises a rotating piece two, a welding head two and a lifting frame two which can be pushed up by the rotating piece two, the outer contour of the rotating piece two is a star shape, and the welding head two is arranged at the top of the lifting frame two; the triggering mechanism comprises a mounting frame, a rotating shaft one fixedly connected with the rotating piece one, a rotating shaft two fixedly connected with the rotating piece two, a transmission assembly connecting the rotating shaft one and the rotating shaft two, and a plurality of groups of supporting assemblies uniformly distributed around the rotating shaft one, the rotating shaft one is rotatably arranged on the mounting frame, and the rotating shaft two is rotatably arranged on the feeding device; when the feeding device conveys the rods two and pushes the supporting assemblies to rotate, the welding head one and the welding head two are triggered to abut against the top end of the rods two and the bottom end of the rods one respectively to weld in the welding area.

[0007] Preferably, the feeding device comprises a supporting frame and a conveying mechanism for driving the supporting frame to move horizontally, the rods one and the rods two are horizontally arranged on the supporting frame, the rods one are arranged in multiple groups side by side along the width direction of the conveying mechanism, and the rods two are arranged in multiple groups side by side along the conveying direction of the conveying mechanism.

[0008] Preferably, the supporting frame has a clamping groove for clamping the end of the rods one and a placing groove for placing the rods two, and the placing groove is gradually inclined to the conveying direction of the conveying mechanism from bottom to top.

[0009] Preferably, the supporting assembly comprises a supporting plate arranged on the rotating piece one, a sliding column slidingly arranged on the supporting plate, a anti-disengagement plate and a supporting table arranged at both ends of the sliding column respectively, and a spring three sleeved on the outer periphery of the sliding column, the two ends of the spring three are connected with the supporting plate and the supporting table respectively, and the supporting table has a recess for the rods two to extend into.

[0010] Preferably, the supporting table has an extension strip at the outer end, and the extension strip is located at the front side of the rotating direction of the supporting table.

[0011] Preferably, the upper welding assembly further comprises a sliding rod one arranged at the top of the lifting frame one, an end plate one arranged at the top of the sliding rod one, a connecting frame one arranged on the mounting frame and allowing the sliding rod one to slide, and a spring one connected with the end plate one and the connecting frame one at both ends, and the lower welding assembly further comprises a sliding rod two arranged at the bottom of the lifting frame two, a connecting frame two arranged on the feeding device and allowing the sliding rod two to slide, an end plate two arranged at the bottom end of the sliding rod two, and a spring two connected with the connecting frame two and the end plate two at both ends.

[0012] Preferably, the connecting frame one is provided with a conductive head one, the end plate one is provided with a conductive head two, the connecting frame two is provided with a conductive head three, the end plate two is provided with a conductive head four, the conductive head one and the conductive head two are in contact, the conductive head three and the conductive head four are in contact, and the welding head one and the welding head two are welded to the rod two and the rod one in the welding area by using the resistance heat effect.

[0013] Preferably, the lifting frame one is provided with a side plate, the side plate is rotatably provided with a roller in rolling contact with the rotating part one, and the lifting frame two is rotatably provided with a roller in rolling contact with the rotating part two.

[0014] Preferably, the inside of the roller is provided with a fan structure, both ends of the roller are rotatably connected with a smoke suction pipe and a smoke conveying pipe respectively, the smoke suction pipe is arranged on the side plate and the bottom end thereof faces the welding head one, the smoke conveying pipe is arranged on the lifting frame one, a filter cartridge is detachably mounted on the lifting frame one, and the filter cartridge is in communication with the end of the smoke conveying pipe.

[0015] Compared with the prior art, the present application has the following beneficial technical effects: in the process of conveying the rod, the rod itself is used to trigger the welding mechanism to weld the rod, the feeding and welding processes are automatically matched, and accurate and effective welding can be performed. In the process of conveying the supporting frame by the conveying mechanism, the rod two drives the rotating part one to rotate by pushing the supporting and pushing assembly, triggers the lifting frame one to move downward, and simultaneously drives the rotating part two to rotate, triggers the lifting frame two to move upward. The welding head one abuts against the top of the rod two, the welding head two abuts against the bottom of the rod one, and the bump welding processing form is used to weld one rod two on multiple rods one below each time, so that the ton barrel net rack is finally obtained. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the embodiment of the present application;

[0017] Figure 2 It is a partial structural schematic view of the supporting frame;

[0018] Figure 3 It is a structural schematic view of the upper welding assembly and the lower welding assembly;

[0019] Figure 4 It is a partial structural sectional view of the upper welding assembly;

[0020] Figure 5 It is Figure 4 It is an enlarged view of the structure at A;

[0021] Figure 6 It is a structural schematic view of the lower welding assembly.

[0022] Attached reference numerals: 1. Conveying mechanism; 2. Moving frame; 3. Positioning platform; 4. Placement platform; 5. Mounting frame; 6. Supporting platform; 601. Groove; 7. Sliding column; 8. Anti-detachment plate; 9. Spring 3; 10. Support plate; 11. Rotating component 1; 111. Rotating shaft 1; 12. Lifting frame 1; 13. Sliding rod 1; 14. End plate 1; 15. Spring 1; 16. Connecting frame 1; 17. Roller; 18. Side plate; 19. Welding head 1; 20. Conductive head 1; 2 1. Conductive head two; 22. Smoke extraction pipe; 23. Smoke supply pipe; 24. Fan blade structure; 25. Filter cartridge; 26. Threaded knob; 27. Rotating component two; 271. Rotating shaft two; 28. Roller; 29. ​​Lifting frame two; 30. Welding head two; 31. Slide rod two; 32. End plate two; 33. Spring two; 34. Connecting frame two; 35. Conductive head three; 36. Conductive head four; 37. Gear one; 38. Gear two; 39. Gear three; 40. Gear four. Detailed Implementation

[0023] Example 1, as Figures 1-6 As shown in the figure, the ton barrel mesh frame feeding and welding device proposed in this embodiment includes a feeding device, a welding mechanism and a triggering mechanism.

[0024] like Figure 1 and Figure 2 As shown, the feeding device is used to convey multiple rods to be welded, which are arranged in an array. The rods include rod one and rod two. The feeding device includes a support frame and a conveying mechanism 1 for driving the support frame to move horizontally. The conveying mechanism 1 uses either a linear conveying structure with existing pulleys and belt drives or a linear conveying structure with a lead screw and lead screw nut connection, designed to drive the support frame to move horizontally back and forth. Rod one and rod two are both placed horizontally on the support frame. Rod one is distributed along the conveying direction of the conveying mechanism 1 and arranged side-by-side in the width direction. Rod two is distributed along the width direction of the conveying mechanism 1 and arranged side-by-side in the conveying direction. Rod one is a long rod, and multiple rod one is distributed along the conveying direction of the conveying mechanism 1 and arranged side-by-side in the width direction. Rod two is a short rod, and multiple rod two is distributed along the width direction of the conveying mechanism 1 and arranged side-by-side in the conveying direction. Rod 1 and Rod 2 are placed vertically and horizontally. Rod 2 has multiple recessed mating points at its lower part. Rod 2 rests on Rod 1 through these mating points. The bottom of Rod 2 and the top of Rod 1 contact each other, forming a welding zone at the contact point. Subsequently, a welding mechanism is used to weld Rod 2 and Rod 1 in the welding zone. Each time, one Rod 2 is welded onto multiple Rod 1s, and finally, the overall structure in the form of a space frame is obtained.

[0025] like Figure 1 and Figure 2As shown, the feeding device, the supporting frame includes a frame-shaped moving frame 2, a plurality of positioning tables 3 arranged side by side in the width direction at both ends of the moving frame 2 in the length direction, and a plurality of placement tables 4 arranged in an array on the moving frame 2. The moving frame 2, the positioning tables 3 and the placement tables 4 are all made of insulating materials. The positioning tables 3 have a clamping groove for clamping one end of the rod, and the spacing between the two rows of positioning tables 3 at both ends of the moving frame 2 is determined according to the length of the rod, so that the two ends of the rod can be clamped into the clamping grooves of the corresponding positioning tables 3 at both ends, and the rod is not easy to fall off from the positioning tables 3 during the conveying of the supporting frame by the conveying mechanism 1. The placement table 4 has a placement groove for placing the second rod, and the placement groove is gradually inclined from bottom to top to the conveying direction of the conveying mechanism 1 (the conveying direction refers to the direction in which the conveying mechanism 1 conveys the rod by driving the supporting frame). When the subsequent trigger welding mechanism is welded, the second rod is not easy to fall off from the placement groove.

[0026] As shown in Figure 1 and Figure 3 , the welding mechanism includes a plurality of groups of upper welding assemblies and a plurality of groups of lower welding assemblies arranged side by side, the upper welding assemblies are located above the lower welding assemblies, and one group of upper welding assemblies is matched with one group of lower welding assemblies below to weld the first rod and the second rod together at the welding area.

[0027] As shown in Figure 4 and Figure 5 , the upper welding assembly includes a rotating member 11, a welding head 19, a lifting frame 12 that can be lowered by the rotating member 11, a sliding rod 13 arranged on the top of the lifting frame 12, an end plate 14 arranged on the top of the sliding rod 13, a connecting frame 16 arranged on the mounting frame 5 and slidably connected with the sliding rod 13, and a spring 15 connected with the end plate 14 and the connecting frame 16 at both ends. The outer contour of the rotating member 11 is a regular polygon, such as a regular hexagon, a regular octagon, etc. The welding head 19 is arranged at the bottom of the lifting frame 12. The welding head 19 is an electrode structure in the form of a bump welding process.

[0028] As shown in Figure 6 , the lower welding assembly includes a rotating member 27, a welding head 30, a lifting frame 29 that can be raised by the rotating member 27, a sliding rod 31 arranged at the bottom of the lifting frame 29, a connecting frame 34 arranged on the feeding device and slidably connected with the sliding rod 31, an end plate 32 arranged at the bottom end of the sliding rod 31, and a spring 33 connected with the connecting frame 34 and the end plate 32 at both ends. The outer contour of the rotating member 27 is a star shape, such as a hexagonal star, an octagonal star, etc., which corresponds to the rotating member 11 with a regular hexagonal or regular octagonal outer contour, i.e. a hexagonal star matches a regular hexagon, and an octagonal star matches a regular octagon. The welding head 30 is arranged at the top of the lifting frame 29, and the welding head 30 is an electrode structure in the form of a bump welding process, which is used in combination with the welding head 19.

[0029] The trigger mechanism comprises a mounting frame 5, a rotating shaft 1 11 fixedly connected with rotating member 1 1, a rotating shaft 2 71 fixedly connected with rotating member 2 27, a transmission assembly connecting rotating shaft 1 11 and rotating shaft 2 71, and a plurality of push bearing assemblies uniformly distributed around rotating shaft 1 11. The mounting frame 5 is arranged on the outer circumferential side of the conveying mechanism 1. The rotating shaft 1 11 is rotatably arranged on the mounting frame 5, and the rotating shaft 2 71 is rotatably arranged on the conveying mechanism 1, specifically in the housing of the conveying mechanism 1, which is fixed on the ground. The rotating directions of the rotating shaft 1 11 and the rotating shaft 2 71 are opposite. Subsequently, only the rotation of the rotating shaft 1 11 is needed to drive the rotating shaft 2 71 to rotate in the opposite direction, and finally to effectively operate the two welding heads in the welding mechanism. Each of the plurality of push bearing assemblies can be pushed by a rod 2. When the feeding device pushes the push bearing assembly to rotate, the welding head 1 19 and the welding head 2 30 are respectively abutted at the top end of the rod 2 and the bottom end of the rod 1 to weld in the welding area. The plurality of push bearing assemblies are uniformly distributed, and when the rod 2 pushes the push bearing assembly, the push bearing assembly can have balanced reaction force on the same rod 2, preventing the rod 2 from being offset due to uneven force. The push bearing assembly is arranged on the rotating member 1 1, but it is not necessarily arranged on each rotating member 1 1. In fact, only the plurality of push bearing assemblies that can balance the rod 2 are needed.

[0030] As shown in Figure 1 and Figure 3 , the transmission assembly comprises a gear 1 37 arranged on the rotating shaft 1 11, a gear 4 40 arranged on the rotating shaft 2 71, and two gears 2 38 and 3 39 meshing with each other. The gear 1 37 and the gear 4 40 are of the same specification, the gear 2 38 and the gear 3 39 are of the same specification, the gear 1 37 and the gear 2 38 are meshed, the gear 3 39 and the gear 4 40 are meshed, and the gear 2 38 and the gear 3 39 are rotatably arranged on the mounting frame 5.

[0031] After the rod 2 pushes the push bearing assembly, the push bearing assembly drives the rotating member 1 1 to rotate, the rotating member 1 1 drives the rotating shaft 1 11 to rotate, and the rotating shaft 1 11 drives the rotating shaft 2 71 to rotate in the opposite direction through the transmission assembly. When the rotating member 1 1 rotates, the lifting frame 1 12 is pushed down, the lifting frame 1 12 drives the welding head 1 19 to move downward, the spring 1 5 is compressed, and the welding head 1 19 moves downward to the limit position and abuts against the top of the rod 2. At the same time, the rotating shaft 2 71 drives the rotating member 2 27 to rotate, the rotating member 2 27 pushes up the lifting frame 2 29, the spring 2 33 is compressed, the lifting frame 2 29 drives the welding head 2 30 to move upward, and the welding head 2 30 abuts against the bottom of the rod 1, which cooperates with the welding head 1 19 abutting against the top of the rod 2 to perform the welding process in the welding area.

[0032] As shown in Figure 3 and Figure 4As shown, the pushing assembly comprises a support plate 10 arranged on the rotating member 11, a sliding column 7 arranged on the support plate 10, a anti-disengaging plate 8 and a pushing table 6 arranged at both ends of the sliding column 7 respectively, and a spring 9 sleeved on the outer periphery of the sliding column 7, both ends of the spring 9 being connected with the support plate 10 and the pushing table 6 respectively, the pushing table 6 having a groove 601 for the second rod to extend into. Under the conveying of the feeding device, the second rod moves horizontally, pushes the pushing table 6 to move, so as to realize the rotation of the rotating member 11. The outer end of the pushing table 6 has an extension strip part, which is located at the front side of the rotation direction of the pushing table 6, and is more easy to contact with the second rod, and guides the second rod to the inside of the groove 601. When the second rod moves to contact with the welding head 19, the spring 9 is compressed by the pushing table 6, that is, the pushing table 6 can also be used to compress the second rod, and the second rod is compressed on the first rod, so as to ensure the subsequent welding quality.

[0033] When the second rod pushes the pushing assembly to rotate, the welding head 19 and the welding head 30 are respectively abutted at the top end of the second rod and the bottom end of the first rod to weld in the welding area, at this time, the spring 15 and the spring 33 are both in the compressed state, and the pushing table 6 is vertically pressed on the second rod, the pushing table 6 is not only used to trigger the rotation of the rotating member 11 by the second rod, but also used to compress the second rod on the first rod to use the welding head 19 and the welding head 30 to carry out higher quality welding. During welding, the feeding device first stops conveying for a short time, and then continues to convey, and the two lifting frames are reversely moved by releasing the elastic potential energy of the spring 15 and the spring 33, so as to reversely move the two welding heads, the welding head 19 is separated from the second rod, and the welding head 30 is separated from the first rod. When the welded second rod continues to move, it will drive the corresponding pushing assembly to continue to rotate, before the second rod is separated from the pushing assembly, the second rod adjacent to the rear side will contact with the pushing assembly adjacent to the rear side, and the next welding of the second rod is automatically connected. Until all the second rods are welded to the first rod, the ton barrel net rack is obtained. Then the net rack is taken off from the supporting frame, the empty supporting frame is reversely conveyed to the initial position by the conveying mechanism 1, and the first rod and the second rod are placed again for the welding of the next net rack. The top end height of the moving frame 2 in the supporting frame is lower than the bottom end height of the pushing table 6, and the moving frame 2 will not contact with the pushing table 6 during the reverse movement of the empty supporting frame, and the rotating member 11 will not be triggered to rotate. When the two welding heads are triggered and used for the welding of the first rod and the second rod, the central controller carried in the feeding and welding device can detect the guide signals of the two welding heads, control the feeding device to stop conveying for a short time, and then continue to convey, so as to ensure the welding quality.

[0034] In this embodiment, during the conveying of the rods, the rods themselves trigger the welding mechanism to weld the rods. The feeding and welding processes are automatically matched, enabling precise and effective welding. When the conveying mechanism 1 conveys the support frame, it drives the pre-laid mesh rods one and two to move horizontally. Rod two drives the push assembly to rotate the rotating component 11, which in turn drives the lifting frame 12 to move downward. The lifting frame 12 drives the welding head 19 to move downward, and simultaneously, the rotating component 27 rotates in conjunction with it. The rotating component 27 drives the lifting frame 29 to move upward, and the lifting frame 29 drives the welding head 30 to move upward. The welding head 19 abuts against the top of rod two, and the welding head 30 abuts against the bottom of rod one. By using a spot welding process, one rod two is welded to multiple rods one below at a time, ultimately obtaining the ton container mesh frame.

[0035] Example 2, as Figures 1-6 As shown, the ton barrel mesh frame feeding and welding device proposed in this embodiment, compared with the first embodiment, has the following features: a conductive head 20 is provided on the connecting frame 16, a conductive head 21 facing the conductive head 20 is provided on the end plate 14, a conductive head 35 is provided on the connecting frame 34, and a conductive head 46 facing the conductive head 35 is provided on the end plate 32. When the conductive head 20 and the conductive head 21 are in contact, the conductive head 35 and the conductive head 46 are in contact. The welding head 19 and the welding head 20 weld the rod 2 and the rod 1 in the welding area using the resistance heating effect.

[0036] In this embodiment, after welding head 19 and welding head 20 are moved into place, the conduction of conductive head 10 and conductive head 21, as well as conductive head 35 and conductive head 4, is automatically triggered. Conductive head 10 and conductive head 35 are electrically connected to an external power supply, thereby forming a closed circuit. The two welding heads are then used to perform spot welding on rod 1 and rod 2. After welding head 19 and welding head 20 are removed from the rod, conductive head 10 and conductive head 21 are automatically disconnected, and conductive head 35 and conductive head 4 are automatically disconnected. That is, the welding heads are only energized during spot welding, which is more energy-efficient and safer.

[0037] Example 3, as Figures 1-6As shown, the ton barrel net rack feeding and welding device provided in the embodiment, compared with the second embodiment, the side plate 18 is arranged on the lifting frame 12, the roller 17 in rolling contact with the rotating part 11 is arranged on the side plate 18, and the rolling wheel 28 in rolling contact with the rotating part 27 is arranged on the lifting frame 29. When the rotating part 11 rotates, the roller 17 is used to realize the downward pressing of the lifting frame 12. Similarly, when the rotating part 27 rotates, the rolling wheel 28 is used to realize the upward pushing of the lifting frame 29. The outer periphery of the rotating part 27 is designed as a star-shaped contour, and a concave V-shaped surface is arranged between the two adjacent corners on the outer periphery, so that the rolling wheel 28 will first quickly move downward and then quickly move upward in the process of rolling from one corner to the adjacent corner on the outer periphery of the rotating part 27, so as to make the welding head 30 first quickly move downward and then quickly move upward, thereby preventing interference with the support frame driven by the conveying mechanism 1.

[0038] As shown in the fourth embodiment, Figures 1-6 The ton barrel net rack feeding and welding device provided in the embodiment, compared with the third embodiment, the fan blade structure 24 is arranged on the inner side of the roller 17, and the fan blade structure 24 is fixedly installed. The two ends of the roller 17 are respectively connected with the smoke suction pipe 22 and the smoke conveying pipe 23 in a rotating manner, the smoke suction pipe 22 is arranged on the side plate 18 and the bottom end faces the welding head 19, specifically, the bottom end is inclined to the welding head 19. The smoke conveying pipe 23 is arranged on the lifting frame 12, and the filter cylinder 25 is detachably installed on the lifting frame 12, the filter cylinder 25 is in communication with the end of the smoke conveying pipe 23. The lifting frame 12 can also be provided with a supporting table, the supporting table has a supporting groove for placing the filter cylinder 25, and the lifting frame 12 is provided with a threaded knob 26 on one side, and the threaded knob 26 is provided with a pressing table at the end. By rotating the threaded knob 26, the pressing table can be moved transversely, and the filter cylinder 25 is pressed tightly at the position in communication with the end of the smoke conveying pipe 23. By reversing the threaded knob 26, the filter cylinder 25 can be detached for replacement or cleaning, which is convenient to use.

[0039] In the embodiment, when the rotating part 11 rotates, the roller 17 is driven to rotate, the fan blade structure 24 is driven to rotate by the roller 17, the fan blade structure 24 blows air to one side of the smoke conveying pipe 23, an air negative pressure is generated on the inner side of the roller 17, the smoke generated during welding is sucked from the head area of the welding head 19 by the smoke suction pipe 22, the smoke is conveyed to the filter cylinder 25 by the smoke conveying pipe 23, and the filter cylinder 25 is used to filter the smoke, thereby improving the welding processing environment.

[0040] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. A tonne bucket web frame feeding and welding apparatus characterised in that, The utility model relates to a welding device for vertical welding of a plurality of rods, comprising: a feeding device for feeding a plurality of rods arranged in an array, the rods being vertical, the bottom of a second rod and the top of a first rod being in contact and forming a welding area at the contact point; a welding mechanism comprising a plurality of upper welding assemblies and a plurality of lower welding assemblies arranged side by side, the upper welding assembly comprising a rotating member (11), a welding head (19) and a lifting frame (12) capable of being pushed down by the rotating member (11), the rotating member (11) having a regular polygonal outer contour, the welding head (19) being arranged at the bottom of the lifting frame (12), the lower welding assembly comprising a rotating member (27), a welding head (30) and a lifting frame (29) capable of being pushed up by the rotating member (27), the rotating member (27) having a star-shaped outer contour, the welding head (30) being arranged at the top of the lifting frame (29); a triggering mechanism comprising a mounting frame (5), a rotating shaft (111) fixedly connected to the rotating member (11), a rotating shaft (271) fixedly connected to the rotating member (27), a transmission assembly connecting the rotating shaft (111) and the rotating shaft (271), and a plurality of push-receiving assemblies uniformly distributed around the rotating shaft (111), the rotating shaft (111) being rotatably arranged on the mounting frame (5), the rotating shaft (271) being rotatably arranged on the feeding device, when the feeding device feeds the rods and the rods push the push-receiving assemblies to rotate, the welding head (19) and the welding head (30) are triggered to abut against the top end of the second rod and the bottom end of the first rod, respectively, to weld at the welding area; the push-receiving assembly comprising a support plate (10) arranged on the rotating member (11), a sliding column (7) slidingly arranged on the support plate (10), a push-receiving table (6) and an anti-disengagement plate (8) arranged at both ends of the sliding column (7), respectively, and a spring (9) sleeved on the outer periphery of the sliding column (7), the two ends of the spring (9) being connected to the support plate (10) and the push-receiving table (6), respectively, the push-receiving table (6) having a recess (601) for the second rod to extend into; the upper welding assembly further comprising a sliding rod (13) arranged at the top of the lifting frame (12), an end plate (14) arranged at the top of the sliding rod (13), a connecting frame (16) arranged on the mounting frame (5) and allowing the sliding rod (13) to slide, and a spring (15) having two ends connected to the end plate (14) and the connecting frame (16), respectively, the lower welding assembly further comprising a sliding rod (31) arranged at the bottom of the lifting frame (29), a connecting frame (34) arranged on the feeding device and allowing the sliding rod (31) to slide, an end plate (32) arranged at the bottom end of the sliding rod (31), and a spring (33) having two ends connected to the connecting frame (34) and the end plate (32), respectively; the lifting frame (12) is provided with a side plate (18), the side plate (18) being rotatably provided with a roller (17) in rolling contact with the rotating member (11), the lifting frame (29) being rotatably provided with a rolling wheel (28) in rolling contact with the rotating member (27).

2. A tonne bucket grid feeding and welding apparatus according to claim 1, characterised in that, The feeding device comprises a supporting frame and a conveying mechanism (1) for driving the horizontal movement of the supporting frame, and the rod one and the rod two are horizontally placed on the supporting frame, the rod one is distributed along the conveying direction of the conveying mechanism (1) and is arranged side by side along the width direction, and the rod two is distributed along the width direction of the conveying mechanism (1) and is arranged side by side along the conveying direction.

3. A tonne bucket grid feeder and welding apparatus as claimed in claim 2, wherein, The supporting frame is provided with a clamping groove for clamping the end of the rod one and a placing groove for placing the rod two, and the placing groove is gradually inclined to the conveying direction of the conveying mechanism (1) from bottom to top.

4. A tonne bucket grid feeding and welding apparatus according to claim 1, characterised in that, The outer end of the supporting table (6) is provided with an extension strip part, and the extension strip part is located on the front side of the rotating direction of the supporting table (6).

5. A tonne bucket grid feeder and welding apparatus as claimed in claim 1 wherein, The connecting frame one (16) is provided with a conductive head one (20), the end plate one (14) is provided with a conductive head two (21), the connecting frame two (34) is provided with a conductive head three (35), the end plate two (32) is provided with a conductive head four (36), the conductive head one (20) and the conductive head two (21) are in contact, the conductive head three (35) and the conductive head four (36) are in contact, and the welding head one (19) and the welding head two (30) are used for welding the rod two and the rod one by the resistance heat effect in the welding area.

6. A tonne bucket grid feeder and welding apparatus as claimed in claim 1 wherein, The inner side of the roller (17) is provided with a fan structure (24), both ends of the roller (17) are respectively rotationally connected with a smoke suction pipe (22) and a smoke conveying pipe (23), the smoke suction pipe (22) is arranged on the side plate (18) and the bottom end faces the welding head one (19), the smoke conveying pipe (23) is arranged on the lifting frame one (12), the lifting frame one (12) is detachably installed with a filter cylinder (25), and the filter cylinder (25) is in communication with the end of the smoke conveying pipe (23).

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