Welding device for processing iron hoop of paper barrel

Abstract

The invention relates to the field of paper barrel processing production equipment, in particular to a welding device for paper barrel iron hoop processing, which comprises a frame, a feeding mechanism, a rolling mechanism and a welding gun. A beam frame is installed on the machine frame, two driving wheels are installed on the beam frame, a driving belt is installed on the two driving wheels, supporting bases are fixedly installed on the driving belt at equal intervals, clamping bases are installed on the supporting bases in a sliding mode, the shearing cutter and the welding gun are both located on the upper portions of the clamping bases, and a first electromagnetic clamp and a second electromagnetic clamp are installed on the clamping bases. The first electromagnetic clamp and the second electromagnetic clamp are used for positioning rolled circles formed in the circle rolling process, the driving belt is used for driving the clamping base, the first electromagnetic clamp and the second electromagnetic clamp to synchronously move to the welding gun for welding, and circle rolling operation and welding operation can be completed only through one-time clamping. In the welding process, a clamp tool does not need to be used for hand turning, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of paper barrel processing and production equipment, and in particular to a welding device for processing iron hoops of paper barrels. Background Art

[0002] Paper barrel processing technology relies on multi-layer composite paper, high-strength recycled paper and plant fiber reinforced composite materials, combined with bio-enzymatic waste paper deinking process and solvent-free composite technology to achieve low-carbon raw materials and environmentally friendly production processes; it is widely used in packaging scenarios such as medical drugs, chemical liquids, hazardous chemical powders, dairy products and precision instruments, promoting the transformation of the packaging industry towards lightweight and recyclable directions;

[0003] In the paper barrel production process, in order to improve the wear resistance and deformation resistance of the upper and lower ends of the paper barrel, iron hoops are placed on the upper and lower ends of the paper barrel to strengthen the structure of the barrel body; the iron hoop is cut into a segmented structure by steel strip, and then bent into a roll, and finally a hoop sleeve of a circular hoop structure is formed by welding the butt edges of the roll. In the production of paper barrels, the hoop sleeve can be assembled at both ends of the paper barrel;

[0004] In order to ensure the separation of the bending and curling process from the welding process and to improve the efficiency of bending, curling and welding, the existing paper barrel iron hoop welding device generally needs to be equipped with two sets of clamping tools, one set for shearing and bending operations on the steel strip, and the other set for welding operations. After welding is completed, the clamping tool at the welding position needs to be docked with the clamping tool at the shearing and bending position to move the bent curling to the welding position for welding operations. In this way, the workpiece moves between the two sets of clamping tools, which reduces the processing efficiency. In addition, the clamping tool is prone to cause the workpiece to shift when it is handed over, which ultimately affects the welding effect. Summary of the invention

[0005] The present invention aims to overcome the problem that the workpiece moves between two sets of clamping tools, which reduces the processing efficiency and easily causes the workpiece to shift when the clamping tools are handed over, ultimately affecting the welding effect. The purpose is to provide a welding device for processing paper barrel iron hoops.

[0006] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0007] A welding device for processing iron hoops of paper barrels, comprising: a frame, a feeding mechanism, a rolling mechanism, and a welding gun;

[0008] A beam frame is installed on the frame;

[0009] The feeding mechanism comprises a feeding roller frame and a shearing cutter, wherein the feeding roller frame is mounted on a frame, and the shearing cutter is located on one side of the feeding roller frame;

[0010] The curling mechanism includes a driving ring, a supporting ring track, and a driving motor. The driving ring is driven to rotate by the driving motor. The supporting ring track is coaxially arranged with the driving ring and is located inside the driving ring. The driving ring is rotatably installed on the beam frame, and the supporting ring track is fixedly installed on the beam frame.

[0011] Two driving wheels are installed on the beam frame. The driving wheels are driven by a feeding motor. A driving belt is installed on the two driving wheels. Support seats are fixedly installed at equal intervals on the driving belt. A clamping seat is slidably installed on the support seat. A reset spring is provided on the support seat. The reset spring pushes the clamping seat to move in the moving direction of the driving belt. The shearing cutter and the welding gun are both located above the clamping seat. The driving belt passes through the supporting ring track. Retaining notches for cooperating with the clamping seat are respectively provided on the driving ring and the supporting ring track. Installation grooves for docking with the supporting ring track are respectively provided on both sides of the clamping seat. A moving block is slidably installed in the installation groove. A dial is fixed on the moving block. The end of the dial extends out of the clamping seat and is located between the retaining notches of the driving ring. Two electromagnetic clamps are installed on the clamping seat, namely a first electromagnetic clamp and a second electromagnetic clamp. The first electromagnetic clamp is fixed on the dial, and the second electromagnetic clamp is fixed on the clamping seat.

[0012] Furthermore, a positioning cavity is provided inside the clamping seat. An isolation block is provided in the middle of the positioning cavity. The installation grooves on both sides of the clamping seat are located on both sides of the isolation seat.

[0013] Furthermore, a locking block is slidably provided inside the positioning cavity. The locking block has an L-shaped structure. One end of the locking block is provided with an inclined surface. The inclined surface can contact the moving block when moving. An electromagnetic push rod is fixed inside the positioning cavity. The output end of the electromagnetic push rod is connected to the locking block.

[0014] Furthermore, a connecting rod is hingedly installed on the clamping seat. A stop rod is fixed at one end of the connecting rod. A stop block is fixed on the support slideway. When the connecting rod is parallel to the moving direction of the driving belt, the stop rod can contact the stop block when moving. The other end of the connecting rod extends into the positioning cavity and is connected with a pressing rod. A top column is provided on the locking block. The end of the top column is provided with an inclined surface capable of pushing the pressing rod to displace downward.

[0015] Furthermore, a reset mechanism is provided on the beam frame. The curling mechanism is located between the reset mechanism and the welding gun. The reset mechanism includes a reset slideway, a reset ring, a reset motor, and an intercepting block. The reset slideway is an annular slideway. The reset slideway is fixedly installed on the beam frame. The reset ring is slidably installed on the beam frame. The reset ring is driven to rotate by the reset motor. Retaining notches for cooperating with the clamping seat are provided on the reset slideway and the reset ring. The clamping seat can pass through the retaining notch. The intercepting block is fixedly installed on the machine frame. The intercepting block and the stop block are located on the same plane. This plane is parallel to the moving direction of the driving belt. The intercepting block is set higher than the stop block.

[0016] Furthermore, the second electromagnetic clamp is located on one side of the isolation block on the clamping seat. A limiting spring is fixed inside the mounting groove on the same side as the second electromagnetic clamp. A limiting plate is fixed on the limiting spring. A reset rod is slidably mounted in the mounting groove on this side. The reset rod extends into the positioning cavity. A positioning block and a positioning spring are provided inside the positioning cavity. The positioning spring pushes the positioning block towards the connecting rod. A triangular protrusion cooperating with the connecting rod is provided on the positioning block. When the lower end of the connecting rod deflects to the bottommost position, the triangular protrusion is inserted into the connecting rod. The end of the reset rod is connected to the positioning block.

[0017] Furthermore, a blanking frame is provided on the beam frame. The blanking frame is arranged at one end of the beam frame away from the curling mechanism. The blanking frame intersects with the movement track of the first electromagnetic clamp.

[0018] Furthermore, the electromagnetic clamp includes a clamping frame, clamping plates, and a clamp push rod. The clamping frame is fixedly installed on the clamping seat. A lifting slideway is provided on the clamping frame. A connecting seat is slidably mounted in the lifting slideway. There are two clamping plates. One of them is fixedly installed at the uppermost end of the lifting slideway, and the other is fixedly installed on the connecting seat. The clamp push rod is fixedly installed on the clamping frame. The output end of the clamp push rod is connected to the connecting seat.

[0019] Furthermore, the clamping plate includes a U-shaped plate body. A buffer roller is slidably mounted inside the U-shaped plate body. An extrusion spring is provided between the buffer roller and the inner groove of the U-shaped plate body.

[0020] Furthermore, a guide cylinder is provided at the lower part of the feeding roller frame. The lower port of the guide cylinder is arranged towards the position of the second electromagnetic clamp. A support plate is installed on the feeding roller frame. The support plate is located below the lower port of the guide cylinder. One side of the support plate facing the moving direction of the driving belt is suspended. The shearing cutter is arranged on the upper part of the support plate.

[0021] The beneficial effects of the present invention are as follows:

[0022] The curling formed during the curling process is positioned by the first electromagnetic clamp and the second electromagnetic clamp. The driving belt is used to drive the clamping seat and the first electromagnetic clamp and the second electromagnetic clamp to move synchronously to the welding gun for welding. The curling operation and the welding operation can be completed only through one clamping. There is no need to use fixture tooling for transfer during the welding process, improving the processing efficiency;

[0023] The driving belt is used to drive the support seat and the clamping seat to move for transportation between the curling operation and the welding operation. By setting the support seat and the clamping seat that can generate relative displacement, as well as the stop block on the support ring track and the lever on the clamping seat, when the two come into contact, the clamping seat is restricted, prompting the clamping seat to stop displacement at the position of the curling mechanism so as to carry out the curling operation normally. At the same time, the driving belt can still drive the remaining clamping seats to continue moving towards the welding gun, which can not only ensure the normal progress of the curling operation but also realize the normal progress of the welding operation, and the two do not interfere with each other. Brief Description of the Drawings

[0024] Figure 1 Structural schematic diagram of the present invention;

[0025] Figure 2 Installation schematic diagram of the curling mechanism of the present invention;

[0026] Figure 3 Structural schematic diagram of the curling mechanism of the present invention;

[0027] Figure 4 Structural schematic diagram of the reset mechanism of the present invention;

[0028] Figure 5 Structural schematic diagram of the clamping seat of the present invention;

[0029] Figure 6 Installation schematic diagram of the blanking rack of the present invention;

[0030] Figure 7 Structural diagram of the positioning cavity of the present invention;

[0031] Figure 8 Installation schematic diagram of the connecting rod and the lever of the present invention;

[0032] Figure 9 Structural schematic diagram of the electromagnetic clamp of the present invention;

[0033] Figure 10 Docking schematic diagram of the feeding mechanism and the second electromagnetic clamp of the present invention.

[0034] In the figure: 1, frame; 2, loading mechanism; 3, curling mechanism; 4, welding gun; 12, beam frame; 13, feeding roller frame; 14, shearing cutter; 21, driving ring; 22, supporting ring track; 23, driving motor; 31, driving wheel; 32, feeding motor; 33, driving belt; 34, supporting seat; 35, clamping seat; 36, return spring; 41, mounting groove; 42, moving block; 43, dial plate; 44, first electromagnetic clamp; 45, second electromagnetic clamp; 51, positioning cavity; 52, isolation block; 53, locking block; 54, electromagnetic push rod; 61, connecting rod; 62, shift lever; 63, stop block; 64, pressing rod; 65, ejector pin; 66, reset mechanism; 601, reset slideway; 602, reset ring; 603, reset motor; 604, intercepting block; 71, blanking frame; 801, clamping frame; 802, clamping plate; 803, clamp push rod; 804, U-shaped plate body; 805, buffer roller; 806, extrusion spring; 807, lifting slideway; 808, connecting seat; 91, limiting spring; 92, limiting plate; 93, reset rod; 94, positioning block; 95, triangular protrusion; 96, positioning spring; 901, material guiding cylinder; 902, support plate. Detailed implementation mode

[0035] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below with reference to specific illustrations.

[0036] Embodiment 1:

[0037] As Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 10 shown, a welding device for processing paper barrel iron hoops includes: a frame 1, a loading mechanism 2, a curling mechanism 3, and a welding gun 4;

[0038] A beam frame 12 is installed on the frame 1;

[0039] The loading mechanism 2 includes a feeding roller frame 13 and a shearing cutter 14. The feeding roller frame 13 is installed on the frame 1, and the shearing cutter 14 is located on one side of the feeding roller frame 13;

[0040] The curling mechanism 3 includes a driving ring 21, a supporting ring track 22, and a driving motor 23. The driving ring 21 is driven by the driving motor 23 to rotate. The supporting ring track 22 is coaxially arranged with the driving ring 21. The supporting ring track 22 is located inside the driving ring 21. The driving ring 21 is rotatably installed on the beam frame 12, and the supporting ring track 22 is fixedly installed on the beam frame 12;

[0041] The beam frame 12 is installed with two driving wheels 31, which are driven by a feeding motor 32. A driving belt 33 is installed on the two driving wheels 31. Support seats 34 are fixedly installed at equal intervals on the driving belt 33. A clamping seat 35 is slidably installed on the support seat 34. A return spring 36 is provided on the support seat 34, and the return spring 36 pushes the clamping seat 35 to move in the moving direction of the driving belt 33. The shearing cutter 14 and the welding gun 4 are both located above the clamping seat 35. The driving belt 33 passes through the support ring channel 22. Retaining notches for cooperating with the clamping seat 35 are respectively provided on the driving ring 21 and the support ring channel 22. Installation grooves 41 for docking with the support ring channel 22 are respectively provided on both sides of the clamping seat 35. A moving block 42 is slidably installed in the installation groove 41. A dial plate 43 is fixed on the moving block 42, and the end of the dial plate 43 extends out of the clamping seat 35 and is located between the retaining notches of the driving ring 21. Two electromagnetic clamps are installed on the clamping seat 35, namely a first electromagnetic clamp 44 and a second electromagnetic clamp 45. The first electromagnetic clamp 44 is fixed on the dial plate 43, and the second electromagnetic clamp 45 is fixed on the clamping seat 35;

[0042] The feeding motor drives the driving wheel 31 to rotate, thereby driving the driving belt 33 to move. When the driving belt 33 moves, it pulls the support seat 34 thereon to move, thereby driving the clamping seat 35 to move. When the clamping seat 35 moves to the position of the support ring channel 22, the installation grooves 41 on both sides of the clamping seat 35 are docked with the support ring channel 22. The end of the coiled tape passes through the feeding roller frame 13 and passes through the second electromagnetic clamp 45 and the first electromagnetic clamp 44 in sequence. The first electromagnetic clamp 44 is opened to clamp the end of the coiled tape. The driving motor 23 is started, and the driving motor 23 drives the driving ring 21 to rotate. The end at the retaining notch on the driving ring 21 moves and pushes against the dial plate 43, pushing the moving block 42 under the dial plate 43 out of the installation groove 41 and into the support ring channel 22. Under the push of the driving ring 21, the dial plate 43 drives the moving block 42 and the first electromagnetic clamp 44 to move into the installation groove 41 on the other side of the clamping seat 35. After the coiled diameter reaches the standard, the second electromagnetic clamp 45 is opened to clamp the coiled tape. The shearing cutter 14 is used to cut the coiled tape. One end of the coiled tape segment after coiling and cutting is clamped on the first electromagnetic clamp 44 and the other end is clamped on the second electromagnetic clamp 45. The two ends of the coiled tape segment are docked between the first electromagnetic clamp 44 and the second electromagnetic clamp 45 to form a coiled structure. As the driving belt 33 moves, it drives the whole clamping seat 35 to move. When it moves to the lower part of the welding gun 4, the welding gun 4 welds the docking position of the ends of the coiled tape segment;

[0043] Thus, the coiling stage and the welding stage can share the same clamping fixture, without the need for handover, avoiding the deviation of coiling positioning during the handover process and improving the processing efficiency.

[0044] Embodiment 2:

[0045] On the basis of Embodiment 1, asFigure 7 , Figure 8 As shown in Figure 8 , a positioning cavity 51 is provided inside the clamping seat 35. An isolation block 52 is provided in the middle of the positioning cavity 51. The mounting grooves 41 on both sides of the clamping seat 35 are located on both sides of the isolation seat 52.

[0046] A locking block 53 is slidably provided inside the positioning cavity 51. The locking block 53 has an L-shaped structure. One end of the locking block 53 is provided with an inclined surface. The inclined surface can contact the moving block 42 when it moves. An electromagnetic push rod 54 is fixed inside the positioning cavity 51. The output end of the electromagnetic push rod 54 is connected to the locking block 53.

[0047] When the first electromagnetic clamp 44 clamps the tape and moves from the mounting groove 41 on one side of the clamping seat 35 to the mounting groove 41 on the other side, the electromagnetic push rod 54 is used to push the locking block 53 to move. The inclined surface on the locking block 53 contacts the moving block 42 installed and connected to the first electromagnetic clamp 44. Under the action of the inclined surface, the moving block 42 is pressed tightly against the isolation block 52, realizing the positioning of the first electromagnetic clamp 44.

[0048] Embodiment 3:

[0049] Based on Embodiment 2, as shown in 1- Figure 5 , Figure 7 , Figure 8 As shown in Figure 8 , a connecting rod 61 is hingedly installed on the clamping seat 35. A stop rod 62 is fixed at one end of the connecting rod 61. A stop block 63 is fixed on the support slideway. When the connecting rod 61 is parallel to the movement direction of the drive belt 33, the stop rod 62 can contact the stop block 63 when it moves. The other end of the connecting rod 61 extends into the positioning cavity 51 and is connected to a downward pressure rod 64. A top column 65 is provided on the locking block 53. The end of the top column 65 is provided with an inclined surface capable of pushing the downward pressure rod 64 to displace downward.

[0050] When the driving belt 33 drives the support base 34 and the clamping base 35 to move, when the clamping base 35 moves to the position of the stopper 63 at the support slideway, the stopper 63 contacts the end of the rod 62 on the clamping base 35. Restricted by the stopper 63, the clamping base 35 and the support slideway remain stationary, while the driving belt 33 drives the support base 34 to continue moving, causing a relative displacement between the support base 34 and the clamping base 35. At this time, the curling operation can be carried out. The clamping base 35 that has completed the curling operation can still continue to move downward under the drive of the driving belt 33 to the lower part of the welding gun 4, avoiding the curling process from affecting the welding process. When the curling is completed, the electromagnetic push rod 54 pushes out the locking block 53 to position the moving block 42 connected to the first electromagnetic clamp 44. The ejector pin 65 on the locking block 53 extends out. The inclined plane at the end of the ejector pin 65 presses down the push rod 64, pushing the push rod 64 to move downward to the lower part of the ejector pin 65. Furthermore, the connecting rod 61 connected to the push rod 64 deflects, and the other end of the connecting rod 61 raises the rod 62, causing the rod 62 to disengage from the stopper 63 on the support slideway. The stopper 63 no longer restricts the rod 62. At this time, the clamping base 35 is reset to the end of the support base 34 under the action of the return spring 36 and moves synchronously with the drive of the driving belt 33 to drive the support base 34;

[0051] A reset mechanism 66 is provided on the beam frame 12. The curling mechanism 3 is located between the reset mechanism 66 and the welding gun 4. The reset mechanism 66 includes a reset slideway 601, a reset ring 602, a reset motor 603, and an intercepting block 604. The reset slideway 601 is an annular slideway, and the reset slideway 601 is fixedly installed on the beam frame 12. The reset ring 602 is slidably installed on the beam frame 12. The reset ring 602 is driven to rotate by the reset motor 603. The reset slideway 601 and the reset ring 602 are provided with retention notches that cooperate with the clamping base 35. The clamping base 35 can pass through the retention notches. The intercepting block 604 is fixedly installed on the frame 1. The intercepting block 604 and the stopper 63 are located on the same plane, and this plane is parallel to the moving direction of the driving belt 33. The intercepting block 604 is set higher than the stopper 63;

[0052] The second electromagnetic clamp 45 is located on one side of the isolation block 52. A limit spring 91 is fixed inside the installation groove 41 on the same side of the clamping base 35 as the second electromagnetic clamp 45. A limit plate 92 is fixed on the limit spring 91. A reset rod 93 is slidably installed in the installation groove 41 on this side. The reset rod 93 extends into the positioning cavity 51. A positioning block 94 and a positioning spring 96 are provided inside the positioning cavity 51. The positioning spring 96 pushes the positioning block 94 to move towards the connecting rod 61. The positioning block 94 is provided with a triangular protrusion 95 that cooperates with the connecting rod 61. When the lower end of the connecting rod 61 deflects to the lowest end, the triangular protrusion 95 is inserted into the connecting rod 61. The end of the reset rod 93 is connected to the positioning block 94;

[0053] During the process of clamping the coiled circle by the first electromagnetic clamp 44 and the second electromagnetic clamp 45 and moving it to the position of the welding gun 4 by the coiling mechanism 3, the electromagnetic push rod 54 in the positioning cavity 51 pushes out the locking block 53. The ejector pin 65 on the locking block 53 presses down the push rod 64, causing the connecting rod 61 to deflect. The connecting rod 61 deflects to the positioning block 94 and is locked at the lower part of the triangular protrusion 95 under the restriction of the triangular protrusion 95.

[0054] The clamping seat 35 that has completed unloading is driven by the drive belt 33 to move to the upper part of another drive wheel 31 again. When the clamping seat 35 passes through the position of the reset intercept block 604, the mounting groove 41 on the side of the clamping seat 35 is docked with the reset slideway 601. At this time, blocked by the intercept block 604, the clamping seat 35 and the reset slideway 601 remain stationary, while there is a displacement relative to the support seat 34. At this time, the electromagnetic push rod 54 contracts, and the locking block 53 is separated from the moving block 42 connected to the first electromagnetic clamp 44. The reset motor 603 drives the reset ring 602 to rotate. The end of the retaining notch on the reset ring 602 contacts the dial plate 43 connected to the first electromagnetic clamp 44, and the moving block 42 connected to the dial plate 43 is pushed into the reset slideway 601. After the reset ring 602 rotates one circle, the moving block 42 is pushed into the mounting groove 41 on the same side as the second electromagnetic clamp 45. Extruded by the moving block 42, the reset rod 93 squeezes the positioning block 94 into the positioning cavity 51, causing the triangular protrusion 95 on the positioning block 94 to be separated from the connecting rod 61. Since the ejector pin 65 on the locking block 53 has been separated from the push rod 64 when the electromagnetic push rod 54 contracts, at this time, the triangular protrusion 95 is also separated from the connecting rod 61. The blocking rod 62 at the upper end of the connecting rod 61 drives the connecting rod 61 to deflect under the action of gravity, causing the lower part of the connecting rod 61 to move upward and the blocking rod 62 at the upper end of the connecting rod 61 to move downward, causing the blocking rod 62 to be separated from the intercept block 604. Losing the restriction of the intercept block 604, the clamping seat 35 is reset on the support seat 34 under the action of the reset spring 36 and moves with the support seat 34 to the coiling mechanism 3 under the drive of the drive belt 33, thus completing the reset of the first electromagnetic clamp 44.

[0055] Embodiment 4:

[0056] On the basis of Embodiment 3, as Figure 6 shown, a blanking frame 71 is provided on the beam frame 12. The blanking frame 71 is arranged at one end of the beam frame 12 away from the coiling mechanism 3, and the inclined surface of the blanking frame 71 intersects with the movement track of the first electromagnetic clamp 44.

[0057] When the drive belt 33 drives the support seat 34 and the clamping seat 35 to displace from the coiling mechanism 3 to the drive wheel 31 at the tail of the beam frame 12, it passes through the position of the welding torch 4, and the welding operation is completed on the coiled tape ends clamped by the first electromagnetic clamp 44 and the second electromagnetic clamp 45. After the welding is completed, the first electromagnetic clamp 44 and the second electromagnetic clamp 45 open. As the clamping seat 35 moves to the tail of the beam frame 12, when passing through the blanking frame 71, the coiled circles completed by welding on the first electromagnetic clamp 44 and the second electromagnetic clamp 45 come into contact with the blanking frame 71, are supported by the blanking frame 71, and are separated from the first electromagnetic clamp 44 and the second electromagnetic clamp 45. As the clamping seat 35 drives the first electromagnetic clamp 44 and the second electromagnetic clamp 45 to move, the coiled circles are completely separated from the first electromagnetic clamp 44 and the second electromagnetic clamp 45. Under the guidance of the blanking frame 71, the coiled circles can fall off, thus completing the unloading;

[0058] As Figure 9 shown, the electromagnetic clamp includes a clamping frame 801, a clamping plate 802, and a clamp push rod 803. The clamping frame 801 is fixedly installed on the clamping seat 35. An elevating slideway 807 is provided on the clamping frame 801. A connecting seat 808 is slidably installed in the elevating slideway 807. There are two clamping plates 802. One of them is fixedly installed at the uppermost end of the elevating slideway 807, and the other is fixedly installed on the connecting seat 808. The clamp push rod 803 is fixedly installed on the clamping frame 801, and the output end of the clamp push rod 803 is connected to the connecting seat 808;

[0059] The clamping plate 802 includes a U-shaped plate body 804. A buffer roller 805 is slidably installed inside the U-shaped plate body 804. An extrusion spring 806 is provided between the buffer roller 805 and the inner groove of the U-shaped plate body 804;

[0060] By providing a floating buffer roller 805 on the clamping plate 802, when the electromagnetic clamp is not clamped, the buffer roller 805 can pre-contact the coiled tape surface. When the coiled tape passes through the clamping plate 802, the wear of the coiled tape on the clamping plate 802 is reduced. When the electromagnetic clamp is clamped, the buffer roller 805 is squeezed into the U-shaped plate body 804 by the clamping plate 802, and the port of the U-shaped plate body 804 can directly act on the coiled tape surface to realize the clamping of the coiled tape;

[0061] As Figure 10 shown, a guide cylinder 901 is provided at the lower part of the feeding roller frame 13. The lower port of the guide cylinder 901 is arranged towards the position of the second electromagnetic clamp 45. A support plate 902 is installed on the feeding roller frame 13. The support plate 902 is located below the lower port of the guide cylinder 901. The support plate 902 is suspended on one side towards the moving direction of the drive belt 33. The shearing cutter 14 is arranged on the upper part of the support plate 902;

[0062] The coiled tape output by the feeding roller frame 13 is guided by the material guiding cylinder 901. The coiled tape enters the second electromagnetic clamp 45 from the lower end of the material guiding cylinder 901. When the first electromagnetic clamp 44 holds the end of the coiled tape and moves to the other side of the clamping seat 35, the end of the coiled tape held by the first electromagnetic clamp 44 is placed on the support plate 902. When the feeding of the feeding roller frame 13 is completed, the blade on the shearing cutter 14 moves downward to the support plate 902 under the push of its own cutter driving unit to shear the coiled tape. The formed coiled circle after shearing has both ends located on the support plate 902 and is respectively clamped by the first electromagnetic clamp 44 and the second electromagnetic clamp 45. When the clamping seat 35 moves, the first electromagnetic clamp 44 and the second electromagnetic clamp 45 hold the coiled circle and move it out from the suspended end of the support seat 902 for subsequent welding operations.

[0063] The above shows and describes 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 by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for processing iron hoops of paper barrels, characterized in that: include: Frame, feeding mechanism, rolling mechanism, welding gun; A beam frame is installed on the frame; The feeding mechanism comprises a feeding roller frame and a shearing cutter, wherein the feeding roller frame is mounted on a frame, and the shearing cutter is located on one side of the feeding roller frame; The rolling mechanism comprises a driving ring, a supporting ring track, and a driving motor. The driving ring is driven to rotate by the driving motor. The supporting ring track is coaxially arranged with the driving ring. The supporting ring track is located inside the driving ring. The driving ring is rotatably mounted on the beam frame, and the supporting ring track is fixedly mounted on the beam frame. The cam is provided with two drive wheels, and the drive wheels are driven by a feeding motor, and a driving belt is installed on the two drive wheels, and a support seat is fixedly installed at an equal interval on the drive belt, and a clamping seat is slidably installed on the support seat, and a return spring is provided on the support seat, and the return spring pushes the clamping seat to move in the direction of movement of the driving belt. The shear cutter and the welding gun are both located on the upper part of the clamping seat, and the driving belt passes through the supporting ring, and the driving ring and the supporting ring are respectively provided with a retention notch that matches the clamping seat, and mounting grooves that dock with the supporting ring are respectively provided on both sides of the clamping seat, and a moving block is slidably installed in the mounting groove, and a dial plate is fixed on the moving block, and the end of the dial plate extends out of the clamping seat and is located between the retention notches of the driving ring, and two electromagnetic clamps are installed on the clamping seat, namely a first electromagnetic clamp and a second electromagnetic clamp, the first electromagnetic clamp is fixed on the dial plate, and the second electromagnetic clamp is fixed on the clamping seat.

2. A welding device for processing iron hoops of paper barrels according to claim 1, characterized in that: A positioning cavity is arranged inside the clamping seat, an isolation block is arranged in the middle of the positioning cavity, and mounting grooves on both sides of the clamping seat are located on both sides of the isolation seat.

3. A welding device for processing iron hoops of paper barrels according to claim 2, characterized in that: A locking block is slidably provided inside the positioning cavity, the locking block is in an L-shaped structure, one end of the locking block is provided with a chamfered surface, the chamfered surface can move and contact the moving block, an electromagnetic push rod is fixed inside the positioning cavity, and the output end of the electromagnetic push rod is connected to the locking block.

4. A welding device for processing iron hoops of paper barrels according to claim 3, characterized in that: The clamping seat is hingedly installed with a connecting rod, a gear rod is fixed at one end of the connecting rod, and a block is fixed on the supporting slide. When the connecting rod is parallel to the movement direction of the driving belt, the gear rod moves to contact the block. The other end of the connecting rod extends into the positioning cavity and is connected to a downward pressure rod. A top column is provided on the locking block, and the end of the top column is provided with an oblique surface that can push the downward displacement of the downward pressure rod.

5. The welding device for processing iron hoops of paper barrels according to claim 1 is characterized in that: A reset mechanism is provided on the beam frame, and the curling mechanism is located between the reset mechanism and the welding gun. The reset mechanism includes a reset slide, a reset ring, a reset motor, and an interception block. The reset slide is an annular slide, and the reset slide is fixedly mounted on the beam frame. The reset ring is slidably mounted on the beam frame. The reset ring is driven to rotate by the reset motor. The reset slide and the reset ring are provided with retention notches that cooperate with the clamping seat, and the clamping seat can pass through the retention notches. The interception block is fixedly mounted on the frame, and the interception block and the stopper are located on the same plane, which is parallel to the movement direction of the drive belt, and the interception block is set higher than the stopper.

6. A welding device for processing iron hoops of paper barrels according to claim 1, characterized in that: The second electromagnetic clamp is located on one side of the isolation block, on the clamping seat, and a limit spring is fixed inside the mounting groove on the same side as the second electromagnetic clamp. A limit plate is fixed on the limit spring. A reset rod is slidably installed in the mounting groove on this side, and the reset rod extends into the positioning cavity. A positioning block and a positioning spring are provided inside the positioning cavity. The positioning spring pushes the positioning block to move toward the connecting rod. The positioning block is provided with a triangular protrusion that cooperates with the connecting rod. When the lower end of the connecting rod is deflected to the bottom, the triangular protrusion is inserted into the connecting rod, and the end of the reset rod is connected to the positioning block.

7. The welding device for processing iron hoops of paper barrels according to claim 1 is characterized in that: A material unloading rack is arranged on the beam frame, and the material unloading rack is arranged at one end of the beam frame away from the rolling mechanism, and the material unloading rack intersects with the motion trajectory of the first electromagnetic clamp.

8. The welding device for processing iron hoops of paper barrels according to claim 4 is characterized in that: The electromagnetic clamp includes a clamping frame, a clamping plate, and a clamp push rod. The clamping frame is fixedly installed on the clamping seat. The clamping frame is provided with a lifting slide. A connecting seat is slidably installed in the lifting slide. Two clamping plates are provided, one of which is fixedly installed at the uppermost end of the lifting slide, and the other is fixedly installed on the connecting seat. The clamp push rod is fixedly installed on the clamping frame, and the output end of the clamp push rod is connected to the connecting seat.

9. A welding device for processing iron hoops of paper barrels according to claim 8, characterized in that: The clamping plate comprises a U-shaped plate body, a buffer roller is slidably mounted inside the U-shaped plate body, and a compression spring is arranged between the buffer roller and the inner groove of the U-shaped plate body.

10. The welding device for processing iron hoops of paper barrels according to claim 1, characterized in that: A material guide cylinder is provided at the lower part of the feed roller frame, and the lower port of the material guide cylinder is arranged toward the second electromagnetic clamp position. A support plate is installed on the feed roller frame, and the support plate is located at the lower part of the lower port of the material guide cylinder. The support plate is suspended toward one side of the driving belt movement direction, and the shear cutter is arranged on the upper part of the support plate.

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