Splicing welding device and method based on steel coil machining

Abstract

The invention relates to the technical field of steel coil welding, in particular to a splicing welding device and method based on steel coil machining. According to the technical scheme, a machine body, a moving mechanism, a welding mechanism, a fixing mechanism and other assemblies work cooperatively. A sliding rail and a track are arranged on the machine body and used for installing the moving mechanism and the feeding mechanism, and the moving mechanism and the feeding mechanism are matched with the limiting assembly to guarantee operation accuracy. The moving mechanism carries the welding mechanism, the welding position can be flexibly adjusted, the fixing mechanism is used for fixing a steel coil, and the circulating mechanism achieves cyclic utilization of cooling liquid. The feeding mechanism is driven by the motor to move and drive steel coils to be centered and aligned, after the steel coils are fixed through the hydraulic cylinder, the welding mechanism is conveyed to the welding position through the moving mechanism, the guide structure is inserted into the inner frame of the fixing mechanism, the steel coils are leveled through the pressing wheels, rolling welding is completed through the disc electrode, and the cooling nozzle is matched with a cooling liquid circulation system to guarantee the welding quality. The whole process can effectively improve the steel coil welding efficiency and quality, and the labor cost and the material loss are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of steel coil welding, and particularly relates to a splicing and welding device and method based on steel coil processing. Background Art

[0002] A steel coil is formed by processing steel through processes such as hot rolling or cold rolling into a steel strip of a certain thickness and width, and then winding it into a coil shape. Steel coils are widely used. In some industrial productions, such as automobile manufacturing and home appliance manufacturing, steel with a longer length is required to manufacture components. However, the length of a single steel coil is often limited, and multiple steel coils can be connected through splicing and welding to meet the requirements of production for the length of steel.

[0003] In current industrial production, the automation level of steel coil welding devices needs to be urgently improved. In the actual operation process, operators need to accurately align the steel coils to be welded by relying on their naked eyes and experience. This process not only requires extremely high operation accuracy, but also due to the large weight and sharp surface of the steel coils, any carelessness may lead to safety accidents such as scratches and squeezes. Even after the docking is completed, during the welding process, it is still necessary for workers to continuously hold the steel coils by hand to ensure their stability. Long-term repetitive high-intensity operations not only make operators prone to fatigue and affect their working state. In addition, the welding process relying on manual operation is restricted by the operation speed and energy of personnel, and it is difficult to achieve efficient and continuous large-scale production, which has become a key bottleneck restricting the improvement of production capacity. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a splicing and welding device and method based on steel coil processing, which solves the problems raised in the background art.

[0005] The solution of the present invention to the above technical problems is as follows:

[0006] A splicing and welding device based on steel coil processing, comprising:

[0007] A machine body, on which a slide rail is provided, and a moving mechanism is slidably installed on the slide rail; a track is laid below the machine body, and a feeding mechanism is slidably installed on both sides of the machine body through the track; a limiting component is installed between the machine body and the feeding mechanism; a circulating mechanism and a fixing mechanism are also provided on the machine body;

[0008] A moving mechanism, a welding mechanism is installed below the moving mechanism, the moving mechanism includes a first sliding seat, one end of the first sliding seat is installed with a cylinder, a second sliding seat is installed on the first sliding seat, and the second sliding seat slides up and down on the first sliding seat through the cylinder;

[0009] A welding mechanism, the welding mechanism comprising a pressing plate, a guide side plate is mounted on the pressing plate, a disc electrode is mounted on the pressing plate, and a cooling nozzle is mounted on the pressing plate behind the disc electrode;

[0010] A fixing mechanism, wherein the fixing mechanism comprises an outer frame, an inner frame is slidably installed in the outer frame, a plug-in rod is provided at the bottom end of the outer frame, and the outer frame is supported and installed on the machine body through the plug-in rod and the elastic member on the machine body; mounting plates are provided at both ends of the inner frame, and pressure wheels and wiper plates are respectively installed on the mounting plates at both ends of the inner frame; a slide groove is provided in the outer frame, a pulley is provided on the outer side of the inner frame, and the inner frame is limitedly installed in the outer frame through the pulley and the slide groove cooperating with each other;

[0011] A circulation mechanism, the circulation mechanism comprising a liquid collecting hopper and a water tank, a conduit is installed at one end of the liquid collecting hopper, the conduit is mounted on the water tank through a support rod, and the coolant in the water tank is sent into the cooling nozzle through a circulation pump;

[0012] A feeding mechanism, wherein two symmetrically distributed supporting rollers are rotatably mounted on the feeding mechanism, driven gears are mounted at both ends of the supporting rollers, a transmission gear is provided on the feeding mechanism, and the two supporting rollers are connected through the driven gear and the transmission gear; a bracket is mounted on the feeding mechanism above the supporting roller, and the bracket is mounted on the feeding mechanism through an elastic pull rod, hydraulic cylinders are provided at both ends of the bracket, and a pressure roller is rotatably mounted on the bracket driven by the hydraulic cylinder; guide splints are sleeved on the supporting rollers and the pressure rollers, a first rack is provided on the guide splints, a second gear is provided on the feeding mechanism, and a total of two guide splints are provided, and the two guide splints are meshed and driven with the second gear through the first rack; a material roll is supported on one side of the feeding mechanism through a support frame;

[0013] The limiting component, the limiting component includes a guide rod, a pulling plate, a bearing plate and a guide block. The bearing plate is rotatably installed on the support plate of the machine body through a torsion spring and a second fixing seat. A limiting seat is also installed on the support plate. A third rack is slidably installed in the limiting seat. A third gear is provided on the bearing plate. A pulling plate is installed on the support plate through a first fixing seat. The pulling plate is slidably installed in the first fixing seat through a limiting block and a limiting groove. The first fixing seat limits the moving angle of the pulling plate. The third rack is connected to the pulling plate through a wire. A guide post is provided at the bottom end of the side of the guide rod away from the support plate. The guide block is rotatably installed on the feeding mechanism through a rotating seat. A guide groove is formed in the guide block. A guide wheel is installed on the lower surface of the end of the guide block away from the feeding mechanism. A power cord is provided on the back of the slide rail. The power cord is electrically connected to the disc electrode. The contact end faces of the guide side plate and the mounting plate are both inclined surfaces. The welding mechanism is inserted into the inner frame through the inclined surface guiding of the guide side plate and the mounting plate.

[0014] On the basis of the above technical solutions, the present invention can be further improved as follows.

[0015] Further, a moving seat is provided at the bottom end of the feeding mechanism. The moving seat is provided with a base. Moving wheels are rotatably installed on both sides of the base. The moving wheels on both sides of the base are connected through a rotating shaft. A first bevel gear is installed on the rotating shaft. Two coaxial second bevel gears are installed in the base. The bottom end of the second gear is connected to a third bevel gear through a safety clutch. The two second bevel gears are respectively in transmission connection with the first bevel gear and the third bevel gear. When the moving wheels move, the second gear is driven through the first bevel gear, the second bevel gear and the third bevel gear on the rotating shaft, driving the guide clamping plate to move. When the guide clamping plate contacts both ends of the material roll, the safety clutch plays a role.

[0016] Further, a second rack is provided at the bottom end of the base. A motor is installed between the tracks at the bottom end of the machine body. A first gear is installed at the output end of the motor. The motor drives the first gear to engage with the second rack, so that the feeding mechanisms on both sides of the machine body move towards or away from each other.

[0017] Further, when the feeding mechanism approaches the machine body, the guide post of the guide rod slides into the guide groove of the guide block, and the guide block is opened through the guiding action of the guide groove. At this time, the guide block pushes the pulling plate to deflect through the guide wheel, and further the pulling plate pulls the third rack through the wire, and the third rack engages with the third gear to expand the bearing plate.

[0018] Further, when the feeding mechanism resets, the receiving plate resets through the torsion spring. At this time, the receiving plate meshes with the third rack through the third gear, so that the third rack pulls the pull plate to reset through the wire.

[0019] Further, the pressing wheel is used to press and flatten the steel coil, the disc electrode is used to roll-weld the steel coil, and the wiper plate is used to scrape off the cooling water sprayed by the cooling nozzle. After being collected by the liquid collecting hopper, it is sent into the water tank through the conduit to realize the circulation of the coolant.

[0020] Further, the air cylinder drives the second sliding seat to descend, so that the welding mechanism descends. The welding mechanism is inserted into the inner frame of the fixing mechanism through the inclined plane guiding of the guiding side plate and the mounting plate.

[0021] Further, place the steel coil between the supporting roller and the pressing roller of the feeding mechanism, and drive the pressing roller to descend through the hydraulic cylinder to clamp and fix the steel coil.

[0022] Further, the moving mechanism slides on the machine body through the slide rail, driving the welding mechanism to move to the welding position.

[0023] A welding method for a splicing and welding device based on steel coil processing includes the following steps:

[0024] S1. Stretch and place the steel coil between the supporting roller and the pressing roller of the feeding mechanism, start the motor, and the motor drives the first gear to mesh with the second rack, so that the feeding mechanisms on both sides of the machine body move towards each other;

[0025] S2. When the feeding mechanism moves, the moving wheel drives the second gear through the first bevel gear, the second bevel gear and the third bevel gear on the rotating shaft, driving the guiding clamping plate to move, so that the two side coils are centered and aligned;

[0026] S3. When the feeding mechanism approaches the machine body, the guiding column of the guiding rod slides into the guiding groove of the guiding block, the guiding block pushes the pull plate to deflect, and the pull plate pulls the third rack through the wire, and the third rack meshes with the third gear to make the receiving plate unfold;

[0027] S4. Drive the pressing roller to descend through the hydraulic cylinder to clamp and fix the steel coil, and send the steel coil to the welding position;

[0028] S5. The moving mechanism slides on the machine body through the slide rail, and the air cylinder drives the second sliding seat to descend, so that the welding mechanism descends;

[0029] S6. The welding mechanism is inserted into the inner frame of the fixing mechanism through the inclined plane guiding of the guiding side plate and the mounting plate, drives the inner frame to move within the outer frame, and the pressing wheel presses and flattens the steel coil;

[0030] S7, the disc electrode performs rolling welding on the steel coil, and the cooling nozzle sprays coolant to cool the welding part;

[0031] S8, the coolant is scraped off by the scraper, collected by the liquid collecting hopper and sent to the water tank through the conduit to realize the coolant circulation;

[0032] S9. When the feeding mechanism is reset, the receiving plate is reset through the torsion spring, and the third gear is engaged with the third rack, so that the third rack pulls the pull plate to reset through the pull wire.

[0033] The present invention provides a splicing welding device and method based on steel coil processing, which has the following beneficial effects:

[0034] The support roller and pressure roller on the feeding mechanism are connected by transmission, and the pressure roller can be adjusted to a certain extent, so as to meet the feeding needs of steel coils of different thicknesses and materials. The guide splint is sleeved on the support roller and pressure roller to ensure that the steel coil maintains linear motion during the feeding process, ensuring the accuracy and stability of the feeding.

[0035] The welding mechanism is equipped with a disc electrode and a cooling nozzle. The disc electrode can provide stable and efficient welding energy, while the cooling nozzle can cool the welding part in time during the welding process to avoid welding deformation, cracks and other quality problems caused by overheating, thereby improving the welding quality and the performance of the welded joint.

[0036] The fixing mechanism can fix the steel coil stably in the appropriate position through the cooperation of the outer frame and the inner frame. The pressure wheel can exert a certain pressure on the steel coil to prevent the steel coil from moving or shaking during the welding process; the scraper can clean the water stains or impurities on the surface of the steel coil to ensure the cleanliness of the welding surface and further improve the welding quality.

[0037] The pull plate, receiving plate, third rack and third gear of the limit assembly cooperate with each other to effectively limit the feeding of the feeding mechanism. When the position of the feeding mechanism deviates, the limit assembly can play a role in time to prevent the feeding mechanism from moving excessively, ensuring the stability and reliability of the equipment operation and reducing welding defects and equipment failures caused by feeding deviation.

[0038] The outer frame is connected to the body through a plug-in rod. This connection method not only ensures a stable connection between the fixing mechanism and the body, but also facilitates disassembly and maintenance when necessary, thereby improving the overall reliability and maintainability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0040] In the attached picture:

[0041] Figure 1 is the right - view external appearance schematic diagram of the present invention;

[0042] Figure 2 is the left - view external appearance schematic diagram of the present invention;

[0043] Figure 3 is the front - view external appearance schematic diagram of the main body of the present invention;

[0044] Figure 4 is the rear - view external appearance schematic diagram of the main body of the present invention;

[0045] Figure 5 is the schematic diagram of the unfolded structure of the receiving plate of the present invention;

[0046] Figure 6 is the front - view structural schematic diagram of the guiding block of the present invention;

[0047] Figure 7 is the bottom - view structural schematic diagram of the guiding block of the present invention;

[0048] Figure 8 is the right - view external appearance schematic diagram of the fixing mechanism of the present invention;

[0049] Figure 9 is the left - view external appearance schematic diagram of the fixing mechanism of the present invention;

[0050] Figure 10 is the external appearance schematic diagram of the bracket of the present invention;

[0051] Figure 11 is the external appearance schematic diagram of the feeding mechanism of the present invention;

[0052] Figure 12 is the external appearance schematic diagram of the moving seat of the present invention;

[0053] Figure 13 is the schematic diagram of the second gear transmission mechanism of the present invention.

[0054] In the drawings, the list of components represented by each reference numeral is as follows:

[0055] 1. Feeding mechanism; 101. Hydraulic cylinder; 102. Bracket; 103. Pressing roller; 104. Driven gear; 105. Transmission gear; 106. Elastic pull rod; 107. Moving wheel; 108. Moving seat; 109. Support frame; 110. Material roll; 111. First rack; 112. Support roller; 113. Guide clamp; 114. Transmission box; 115. Second rack; 116. First gear; 117. Base; 118. Motor; 119. Second gear; 120. Safety clutch; 121. Rotating shaft; 122. First bevel gear; 123. Second bevel gear; 124. Third bevel gear; 2. Circulation mechanism; 201. Conduit; 202. Support rod; 203. Liquid collecting bucket; 204. Sink; 3. Fixing mechanism; 301. Pressing roller; 302. Mounting plate; 303. Connecting rod ; 304, inner frame; 305, pulley; 306, slide; 307, outer frame; 308, wiper; 4, welding mechanism; 401, disc electrode; 402, pressure plate; 403, guide side plate; 5, moving mechanism; 501, cylinder; 502, first sliding seat; 503, second sliding seat; 6, machine body; 601, slide rail; 602, support electrode plate; 603, support plate; 604, electrode Source line; 605, elastic member; 606, countersunk hole; 7, limit assembly; 701, pull plate; 702, first fixed seat; 703, pull wire; 704, third rack; 705, limit seat; 706, second fixed seat; 707, third gear; 708, receiving plate; 709, guide block; 710, guide groove; 711, guide column; 712, guide rod; 713, guide wheel; 8, track. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] See also Figures 1 to 13 As shown, the embodiments provided by the present invention are:

[0058] Embodiment 1

[0059] A splicing welding device based on steel coil processing, comprising:

[0060] The machine body 6 is provided with a slide rail 601, and a moving mechanism 5 is slidably installed on the slide rail 601; a track 8 is laid below the machine body 6, and a feeding mechanism 1 is slidably installed on both sides of the machine body 6 through the track 8; a limiting component 7 is installed between the machine body 6 and the feeding mechanism 1, and the limiting component 7 can accurately limit the moving range of the feeding mechanism 1 to ensure the accuracy of the feeding position, providing a reliable guarantee for the subsequent welding work; a circulating mechanism 2 and a fixing mechanism 3 are also provided on the machine body 6;

[0061] The moving mechanism 5 is installed with a welding mechanism 4 below. The moving mechanism 5 includes a first sliding seat 502. One end of the first sliding seat 502 is installed with a cylinder 501. A second sliding seat 503 is installed on the first sliding seat 502. The second sliding seat 503 slides up and down on the first sliding seat 502 through the cylinder 501. This double-sliding-seat structural design enables the welding mechanism 4 to move flexibly in both the horizontal and vertical directions, greatly improving the convenience and accuracy of the welding operation;

[0062] The welding mechanism 4 includes a pressing plate 402. A guiding side plate 403 is installed on the pressing plate 402. A disc electrode 401 is installed on the pressing plate 402. A cooling nozzle is installed behind the disc electrode 401 on the pressing plate 402. The cooling nozzle adopts an efficient atomization design, which can quickly spray the coolant evenly on the welding part, timely cool the welding area, prevent welding deformation, and at the same time extend the service life of the electrode;

[0063] The fixing mechanism 3 includes an outer frame 307. An inner frame 304 is slidably installed in the outer frame 307. A plugging rod 303 is provided at the bottom end of the outer frame 307. The outer frame 307 is supported and installed on the machine body 6 through the cooperation of the plugging rod 303 and the elastic member 605 on the machine body 6. This installation method can not only realize the flexible installation and disassembly of the fixing mechanism 3, but also effectively reduce the vibration influence during the welding process through the buffering effect of the elastic member 605; mounting plates 302 are provided at both ends of the inner frame 304, and a pressing wheel 301 and a water scraping plate 308 are respectively installed on the mounting plates 302 at both ends of the inner frame 304. The pressing wheel 301 can tightly press the steel coil to prevent the steel coil from moving during the welding process and ensure the welding quality; the water scraping plate 308 can timely remove the water stains and impurities on the surface of the steel coil, providing a good working surface for welding; a chute 306 is opened in the outer frame 307, and a pulley 305 is provided on the outer side of the inner frame 304. The inner frame 304 is installed in the outer frame 307 through the cooperation of the pulley 305 and the chute 306 for limiting. This cooperation method of the pulley and the chute can reduce the frictional resistance when the inner frame 304 slides, making the movement of the inner frame 304 smoother and facilitating the installation and adjustment of the steel coil;

[0064] Circulation mechanism 2, circulation mechanism 2 includes a liquid collecting hopper 203 and a water tank 204. The liquid collecting hopper 203 adopts a large opening design, which can quickly collect the coolant generated during the welding process to prevent the coolant from spilling. A catheter 201 is installed at one end of the liquid collecting hopper 203. The catheter 201 is erected on the water tank 204 through a support rod 202. The coolant in the water tank 204 is sent to the cooling nozzle through a circulation pump. The circulation pump adopts an efficient and energy-saving pump body, which can ensure the stable delivery of the coolant and reduce energy consumption. The circulation system can continuously provide coolant to the cooling nozzle, ensure the cooling effect of the welding mechanism 4, and maintain the normal operation of the equipment;

[0065] The feeding mechanism 1 has an efficient feeding capacity and a precise guiding function, and can quickly and accurately transport the steel coil to the welding position. Two symmetrically distributed support rollers 112 are rotatably installed on the feeding mechanism 1. Driven gears 104 are installed at both ends of the support rollers 112. A transmission gear 105 is provided on the feeding mechanism 1. The two support rollers 112 are connected by the driven gear 104 and the transmission gear 105. This gear transmission method has high transmission efficiency and can ensure the stability and synchronization of the feeding speed; a bracket 102 is installed above the support roller 112 on the feeding mechanism 1. The bracket 102 is installed on the feeding mechanism 1 through an elastic pull rod 106. The elastic pull rod 106 can automatically adjust the height of the bracket 102 according to the thickness of the steel coil to ensure The pressure between the pressure roller 103 and the support roller 112 is uniform, which effectively prevents the steel coil from slipping during the feeding process. Hydraulic cylinders 101 are provided at both ends of the bracket 102, and the pressure roller 103 is installed on the bracket 102 through the hydraulic cylinder 101 to drive and rotate; the support roller 112 and the pressure roller 103 are sleeved with a guide clamping plate 113, and the guide clamping plate 113 is provided with a first rack 111. The feeding mechanism 1 is provided with a second gear 119. There are two guide clamping plates 113 in total, and the two guide clamping plates 113 are meshed and driven by the first rack 111 and the second gear 119. This transmission method can accurately control the opening and closing of the guide clamping plates 113, so as to achieve accurate guidance and positioning of the steel coil; one side of the feeding mechanism 1 is supported by a material coil 110 through a support frame 109;

[0066] The limiting assembly 7 can accurately control the position of the feeding mechanism 1 to ensure the accuracy and safety of the welding work. The limiting assembly 7 includes a guide rod 712, a pull plate 701, a receiving plate 708 and a guide block 709. The receiving plate 708 is rotatably mounted on the support plate 603 of the body 6 through a torsion spring and a second fixed seat 706. This installation method allows the receiving plate 708 to rotate flexibly to meet the limiting requirements of different angles. The body 6 is also provided with a supporting electrode plate 602. The supporting plate 603 is located on both sides of the supporting electrode plate 602. Countersunk holes are provided on the supporting plate 603 606, an elastic member 605 is installed in the counterbore 606, and the elastic member 605 can provide a buffer and reset function for the receiving plate 708, effectively reducing the impact force during the limiting process. A limiting seat 705 is also installed on the support plate 603, and a third rack 704 is slidably installed in the limiting seat 705. A third gear 707 is provided on the receiving plate 708. Through the cooperation of the third rack 704 and the third gear 707, accurate limiting control can be achieved. A pull plate 701 is installed on the support plate 603 through the first fixed seat 702, and the pull plate 701 is slidably installed on the first fixed seat 702 through the limiting block and the limiting groove. The first fixed seat 702 limits the movable angle of the pull plate 701 to ensure that the movement of the pull plate 701 is accurate and reliable. The third rack 704 is connected to the pull plate 701 through the pull wire 703. This pull wire transmission method has a simple structure and reliable transmission, and can achieve long-distance limit control. A guide column 711 is provided at the bottom end of the guide rod 712 away from the support plate 603. The guide block 709 is rotatably installed on the feeding mechanism 1 through a rotating seat. A guide groove 710 is provided on the guide block 709. A guide is installed on the lower surface of the end of the guide block 709 away from the feeding mechanism 1. The wheel 713, the guide column 711, the guide groove 710 and the guide wheel 713 cooperate with each other to provide precise guidance for the feeding mechanism 1, ensuring that the feeding mechanism 1 moves along the predetermined track; a power cord 604 is provided on the back of the slide rail 601, and the power cord 604 is electrically connected to the disc electrode 401; the contact end surfaces of the guide side plate 403 and the mounting plate 302 are both inclined surfaces, and the welding mechanism 4 is inserted into the inner frame 304 through the inclined surface guidance of the guide side plate 403 and the mounting plate 302. This inclined surface guiding design can enable the welding mechanism 4 to be quickly and accurately inserted into the fixing mechanism 3, thereby improving work efficiency.

[0067] Embodiment 2

[0068] In order to further improve the stability, flexibility and safety of the feeding mechanism, ensure the accurate feeding of steel coils during processing and reliable operation of the equipment, for example, Figures 12 to 13 As shown, the present invention also includes:

[0069] The bottom end of the feeding mechanism 1 is provided with a moving seat 108. The moving seat 108 is provided with a base 117. Moving wheels 107 are rotatably installed on both sides of the base 117. The surface of the moving wheels 107 is treated with special anti-slip and wear-resistant treatment, and the material combines high-strength rubber and a metal hub. While ensuring smooth movement, it greatly enhances the friction with the track, effectively preventing slipping. Even under complex working conditions, it can operate stably. The moving wheels 107 on both sides of the base 117 are connected by a rotating shaft 121. A first bevel gear 122 is installed on the rotating shaft 121. Two coaxial second bevel gears 123 are installed in the base 117. The bottom end of the second gear 119 is connected to a third bevel gear 124 through a safety clutch 120. The safety clutch 120 adopts an overload protection design, with sensitive reaction and reliable operation. When the system has an overload or jamming situation, it can quickly cut off the power transmission, effectively protecting the key components of the equipment from damage. At the same time, it has an automatic reset function, facilitating quick resumption of operation after troubleshooting. The two second bevel gears 123 are respectively in transmission connection with the first bevel gear 122 and the third bevel gear 124. The safety clutch 120, the second bevel gear 123, and the third bevel gear 124 are all located in the transmission box 114. The transmission box 114 adopts a fully enclosed dust and waterproof design, which can effectively isolate external dust, moisture and other impurities, protect the internal transmission components, reduce wear, and extend the maintenance cycle. When the moving wheels 107 move, the second gear 119 is driven through the first bevel gear 122, the second bevel gear 123, and the third bevel gear 124 on the rotating shaft 121. This multi-stage bevel gear transmission structure is ingeniously designed, which can realize flexible steering and efficient transmission of power, driving the guiding clamping plate 113 to move; when the guiding clamping plate 113 contacts both ends of the coil 110, the safety clutch 120 comes into play. Once the guiding clamping plate 113 contacts the coil 110 and the system load fluctuates abnormally, the safety clutch 120 will immediately cut off the power transmission. This precise and rapid reaction successfully prevents the guiding clamping plate 113 from further squeezing the coil 110, enabling the coil 110 to maintain a good shape, providing high-quality raw materials for subsequent welding processing. At the same time, it also avoids damage to other components of the feeding mechanism due to excessive load, reduces the equipment maintenance cost and downtime for repair, and ensures that the entire feeding system can operate continuously, stably and efficiently.

[0070] A second rack 115 is provided at the bottom end of the base 117. A motor 118 is installed between the tracks 8 at the bottom end of the machine body 6. A first gear 116 is installed at the output end of the motor 118. The motor 118 drives the first gear 116 to mesh with the second rack 115, so that the feeding mechanisms 1 on both sides of the machine body 6 move towards or away from each other. This driving method is flexible in operation and precise in control, and can quickly adjust the position of the feeding mechanism 1 to meet the processing requirements of different specifications of steel coils, significantly improving production efficiency.

[0071] Embodiment Three

[0072] To achieve precise position linkage control between the feeding mechanism and the machine body, ensure smooth connection of each link during the steel coil processing, and improve the level of automated operation of the equipment. Exemplarily, as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 13 shown, the present invention further includes:

[0073] When the feeding mechanism 1 approaches the machine body 6, the guide column 711 of the guide rod 712 slides into the guide groove 710 of the guide block 709, and through the guiding action of the guide groove 710, the guide block 709 opens. The guide groove 710 adopts a special arc-shaped opening structure, and the inner wall is also processed with high precision. There is a very small gap when the two cooperate, so that through the powerful and precise guiding action of the guide groove 710, the guide block 709 can open smoothly and stably. At this time, the guide block 709 pushes the pull plate 701 to deflect through the guide wheel 713. The guide wheel 713 installed on the guide block 709 is made of high-strength wear-resistant material and its surface is anti-slip treated. When contacting the pull plate 701, it can push the pull plate 701 to deflect powerfully and stably by virtue of excellent friction. The pull plate 701 is slidably installed in the first fixed seat 702 through a limit block and a limit groove. This structural design not only accurately limits the movement angle of the pull plate 701, but also ensures that its movement is precise and without shaking when stressed, so that the pull plate 701 can reliably pull the third rack 704 through the wire 703. The third rack 704 meshes with the third gear 707 to expand the receiving plate 708. During the whole process, the linkage cooperation between the components is tight and the movement is smooth, and the expansion action of the receiving plate 708 can be quickly and accurately completed when the feeding mechanism 1 approaches the machine body 6, greatly improving the working efficiency and the coherence of the equipment operation.

[0074] When the feeding mechanism 1 resets, the receiving plate 708 resets through a torsion spring. During the reset process of the receiving plate 708, the reset power is stably transmitted through the precise meshing of the third gear 707 and the third rack 704. Due to their high-precision manufacturing process and reasonable transmission ratio design, the third rack 704 can accurately pull the pull plate 701 to reset through the wire 703. During the reset process of the pull plate 701, thanks to its precise limiting structure with the first fixed seat 702, it can reset smoothly along the predetermined trajectory without deviation or jamming. This ingenious reset design ensures that the entire linkage system can quickly return to the initial state after the feeding mechanism 1 completes a working cycle, prepares for the next work, effectively improves the automation degree and working efficiency of the equipment, and at the same time reduces the failure rate and maintenance cost of the equipment.

[0075] Embodiment Four

[0076] To ensure the welding quality of the steel coil, improve the welding efficiency, and achieve the recycling of the coolant, exemplarily, as Figures 8 to 9 shown, the present invention further includes:

[0077] The pressing wheel 301 is used to press and flatten the steel coil. Its unique arc design enables it to have a very high degree of fit with the surface of the steel coil, and it can evenly press and flatten the steel coil. During the pressing process, the pressing wheel 301 can effectively eliminate small wrinkles, protrusions and other unevenness on the surface of the steel coil, providing a flat and smooth welding surface for the subsequent welding process, greatly improving the welding quality and welding effect. At the same time, the rotation design of the pressing wheel 301 is very flexible. It is supported by high-precision bearings inside. While applying pressure to the steel coil, it can smoothly rotate following the movement of the steel coil, reducing the frictional resistance with the steel coil and avoiding scratching the surface of the steel coil to ensure that the surface quality of the steel coil is not damaged.

[0078] The disc electrode 401 is made of an alloy material with a special formula. This material has excellent electrical conductivity and arc erosion resistance, and can generate a stable and strong arc during the welding process. The disc shape design of the disc electrode 401 makes its contact area with the steel coil larger. When performing rolling welding on the steel coil, it can achieve continuous and uniform welding, effectively improving the welding efficiency. Its surface is finely polished, smooth and flat, which can reduce the adhesion of welding slag during the welding process, reduce the cleaning frequency, and further improve the work efficiency. In addition, the disc electrode 401 also has good heat dissipation performance, which can quickly dissipate the heat generated during the welding process, avoid affecting the service life of the electrode and the welding quality due to excessive temperature, and ensure the long-term stable progress of the welding work.

[0079] The wiper 308 is made of a highly elastic and wear-resistant rubber material. Its edge is specially ground, which is both soft and has a certain scraping force. This design enables it to closely fit the surface of the steel coil and efficiently scrape off the cooling water sprayed by the cooling nozzle without damaging the steel coil. The scraping action of the wiper 308 is very smooth, and it can quickly converge the cooling water into a water flow and guide it to flow smoothly into the liquid collecting hopper 203. The liquid collecting hopper 203 has the characteristics of a large capacity and efficient diversion. Its opening is large and funnel-shaped, which can quickly collect the cooling water and prevent the cooling water from splashing everywhere. The collected cooling water is sent into the water tank 204 through the conduit 201. The entire conveying process adopts a sealed pipeline design, effectively avoiding the leakage and evaporation loss of the coolant. The circulation pump selects an energy-saving and efficient product, which can stably send the coolant in the water tank 204 into the cooling nozzle to achieve the recycling of the coolant. This coolant circulation system is not only energy-saving and environmentally friendly, greatly reducing the production cost, but also can continuously provide sufficient coolant for the cooling nozzle, ensuring the effective cooling of the welding area during the welding process, maintaining the normal operating temperature of the equipment, and extending the service life of the equipment.

[0080] Example Five

[0081] For achieving precise positioning, efficient operation and stable operation during the steel coil welding process, exemplarily, as Figure 1 、 Figure 2 、 Figure 8 and Figure 9 shown, the present invention further includes:

[0082] The cylinder 501 drives the second sliding seat 503 to descend, causing the welding mechanism 4 to descend. The welding mechanism 4 is inserted into the inner frame 304 of the fixing mechanism 3 through the inclined plane guiding of the guiding side plate 403 and the mounting plate 302. Through this high-precision inclined plane guiding design, the welding mechanism 4 can be inserted into the inner frame 304 of the fixing mechanism 3 with extremely high alignment accuracy, effectively avoiding the problem of inaccurate welding position caused by insertion deviation, and laying a foundation for subsequent high-quality welding. At the same time, this design also reduces the collision and friction during the insertion process, and prolongs the service life of the components.

[0083] Place the steel coil between the support roller 112 and the pressure roller 103 of the feeding mechanism 1. The surface of the support roller 112 adopts an anti-slip texture design, combined with the high-strength alloy steel material, which can provide a stable support for the steel coil, preventing the steel coil from rolling or shifting during the placement process. The pressure roller 103 is driven by the hydraulic cylinder 101 to descend to clamp and fix the steel coil. When the pressure roller 103 descends, it can evenly clamp and fix the steel coil, ensuring that the clamping force is sufficient to prevent the steel coil from moving during the processing, and avoiding damaging the surface of the steel coil due to excessive pressure. In addition, the parallelism between the pressure roller 103 and the support roller 112 is strictly calibrated to ensure that the steel coil remains horizontal in the clamped state, further improving the processing accuracy.

[0084] The design of the moving mechanism 5 fully considers the stability and flexibility of the equipment operation. Its cooperation with the slide rail 601 adopts a high-precision linear guide pair. The slide rail 601 is subjected to quenching and hardening treatment, with high surface hardness and strong wear resistance. High-precision ball bearings are installed inside the slider of the moving mechanism 5, which can greatly reduce the sliding friction resistance. When the moving mechanism 5 slides on the machine body 6 through the slide rail 601, the operation is very stable, and the positioning accuracy can reach the micron level. During the moving process, the moving mechanism 5 is also equipped with a high-precision displacement sensor, which can real-time monitor its own position and feedback the data to the control system to ensure that the welding mechanism 4 can accurately move to the welding position. This high-precision movement control not only improves the welding efficiency, but also ensures the consistency of the welding quality. Even in a long-term and high-intensity working environment, it can operate stably and reliably.

[0085] Example Six

[0086] To achieve high-precision, high-efficiency, and automated control in the steel coil welding process, improve welding quality and production efficiency, and reduce manual intervention and equipment wear, exemplarily, as Figures 1 to 13 shown, the present invention further includes:

[0087] A welding method for a splicing and welding device based on steel coil processing, comprising the following steps:

[0088] S1. Stretch and place the steel coil between the support roller 112 and the pressure roller 103 of the feeding mechanism 1. The surface of the support roller 112 is treated with a special anti-slip and wear-resistant coating, and in combination with the high-strength alloy steel material, it can provide stable and reliable support for the steel coil, effectively preventing the steel coil from rolling or shifting during placement. Start the motor 118, which adopts a high-performance servo drive system, featuring fast response speed and high control precision, and can accurately adjust the rotation speed and torque according to the preset program. The motor 118 drives the first gear 116 to mesh with the second rack 115. Both the first gear 116 and the second rack 115 are processed by high-precision milling, with standard tooth profiles, tight meshing, high transmission efficiency, and low noise. Through this precise gear-rack transmission method, the feeding mechanisms 1 on both sides of the machine body 6 can move towards each other in a stable and synchronous state, ensuring the accurate position of the steel coil during feeding and preparing for subsequent processing operations;

[0089] S2. When the feeding mechanism 1 moves, the moving wheel 107 is made of high-strength wear-resistant rubber material, having good grip and shock absorption performance when contacting the track, and can ensure the stable movement of the feeding mechanism 1. The moving wheel 107 drives the second gear 119 through the first bevel gear 122, the second bevel gear 123, and the third bevel gear 124 on the rotating shaft 121. These bevel gears are all made of high-quality alloy steel and are subjected to carburizing and quenching treatment, with high tooth surface hardness, strong wear resistance, and extremely high meshing precision between the gears, resulting in small power loss during transmission. Through this multi-stage bevel gear transmission structure, the power of the moving wheel 107 can be efficiently and stably transmitted to the second gear 119, driving the guide clamping plate 113 to move. The movement precision of the guide clamping plate 113 is guaranteed by a precise transmission system, which can achieve precise centering alignment of the two side material coils 110, ensure that the steel coil is in an ideal position state before welding, and effectively improve the accuracy and quality of welding;

[0090] S3. When the feeding mechanism 1 approaches the machine body 6, the guide column 711 of the guide rod 712 is precision ground, with a smooth surface and extremely high dimensional accuracy, and can accurately slide into the guide groove 710 of the guide block 709. The guide groove 710 adopts a special curved surface design and has good guiding performance and stability when cooperating with the guide column 711. The guide block 709 pushes the pull plate 701 to deflect. The pull plate 701 is slidably installed in the first fixed seat 702 through a limiting block and a limiting groove. This structural design can accurately limit the movement angle of the pull plate 701 to ensure its accurate movement. The pull plate 701 pulls the third rack 704 through the wire 703. The wire 703 is made of a special material with high strength and low elongation rate, which can ensure the stable transmission of the pulling force. The third rack 704 meshes with the third gear 707 to unfold the receiving plate 708. The high-precision meshing of the third rack 704 and the third gear 707 can efficiently transmit the power, so that the receiving plate 708 can be unfolded quickly and stably, providing reliable support for the positioning and fixing of the steel coil;

[0091] S4. The hydraulic cylinder 101 drives the pressure roller 103 to descend. The hydraulic cylinder 101 is equipped with an advanced pressure sensor and an intelligent control system, which can automatically adjust the output pressure and the descending speed according to the actual thickness and material of the steel coil. When the pressure roller 103 descends, it can clamp and fix the steel coil with a uniform and stable pressure, which not only ensures that the clamping force is sufficient to prevent the steel coil from moving during the processing, but also avoids damaging the surface of the steel coil due to excessive pressure. At the same time, the parallelism between the pressure roller 103 and the support roller 112 is strictly calibrated and monitored in real time to ensure that the steel coil remains horizontal in the clamped state, further improving the positioning accuracy and processing quality of the steel coil. Subsequently, the steel coil is sent to the welding position through an accurate feeding system. This feeding system can achieve high-precision position control according to the preset program and the position information fed back by the sensor, ensuring that the steel coil accurately reaches the position required for welding;

[0092] S5. The moving mechanism 5 slides on the machine body 6 through the slide rail 601. The slide rail 601 adopts a high-rigidity linear guide rail design, and its surface is quenched, hardened and precision ground, with extremely high wear resistance and straightness. High-precision ball bearings and pre-tightening devices are installed inside the slider of the moving mechanism 5, which can greatly reduce the sliding friction resistance and improve the smoothness and accuracy of the movement. The air cylinder 501 adopts high-precision servo control technology, which can achieve precise adjustment of the output force and displacement. Its cylinder body is precision machined, with a smooth inner wall and excellent sealing performance. Cooperating with high-quality piston components, it can effectively reduce gas leakage and ensure stable driving force. When the air cylinder 501 drives the second sliding seat 503 to descend, with its precise stroke control ability, it can send the welding mechanism 4 smoothly and accurately to the predetermined height to prepare for the welding operation;

[0093] S6. The welding mechanism 4 is inserted into the inner frame 304 of the fixing mechanism 3 through the bevel guide of the guide side plate 403 and the mounting plate 302. Both the guide side plate 403 and the mounting plate 302 are processed by high-precision CNC machine tools. The bevel angle error of the contact end faces of the two is extremely small. Through this high-precision bevel guide design, the welding mechanism 4 can be inserted into the inner frame 304 with extremely high alignment accuracy, effectively avoiding the problem of inaccurate welding position caused by insertion deviation. After insertion, the inner frame 304 is driven to move in the outer frame 307 by the internal drive device. The drive device adopts a high-precision screw nut transmission mechanism, which can realize the smooth and precise movement of the inner frame 304. The pressure wheel 301 is made of high-hardness alloy steel and undergoes a special heat treatment process to form a dense hardened layer on its surface. It not only has excellent wear resistance, but also has excellent pressure resistance. The unique arc design makes it highly fit with the surface of the steel coil, and can evenly press and flatten the steel coil, eliminating the tiny wrinkles and unevenness on the surface of the steel coil, providing a good basic surface for welding;

[0094] S7, disc electrode 401 is used for rolling welding of steel coils. Disc electrode 401 is made of a specially formulated alloy material, which has excellent conductivity and resistance to arc erosion, and can generate a stable and strong arc during the welding process. Its disc shape design makes its contact area with the steel coil larger, and can achieve continuous and uniform welding during rolling welding, effectively improving welding efficiency. At the same time, the cooling nozzle adopts an efficient atomization design, which can spray the coolant evenly on the welding part, quickly take away the heat generated during the welding process, and efficiently cool the welding part to prevent welding deformation and ensure welding quality. The cooling system is also equipped with a temperature sensor that can monitor the temperature of the welding area in real time, and automatically adjust the flow of the coolant according to temperature changes to achieve precise cooling;

[0095] S8, the wiper blade 308 scrapes off the coolant. The wiper blade 308 is made of highly elastic and wear-resistant rubber material. Its edge has been specially ground, so it is soft and has a certain scraping force. It can fit tightly to the surface of the steel coil and efficiently scrape off the coolant without damaging the steel coil. The coolant is collected by the liquid collecting hopper 203. The liquid collecting hopper 203 adopts a large opening and funnel-shaped design, which can quickly and effectively collect the coolant and prevent the coolant from splashing everywhere. The collected coolant is sent to the water tank 204 through the conduit 201. The conduit 201 is made of corrosion-resistant material and has a smooth inner wall, which can ensure the smooth delivery of the coolant. The entire coolant circulation system is equipped with an efficient filtering device, which can promptly remove impurities in the coolant, ensure the cleanliness of the coolant, extend the service life of the coolant, realize the recycling of the coolant, and achieve the purpose of energy saving and environmental protection;

[0096] S9. When the feeding mechanism 1 is reset, the receiving plate 708 is reset by a torsion spring with excellent performance. The torsion spring is made of special alloy material, has good elasticity and fatigue resistance, and can maintain stable elastic force during long-term use, ensuring reliable reset of the receiving plate 708. During the reset process of the receiving plate 708, the reset power is stably transmitted through the precise engagement of the third gear 707 and the third rack 704. Due to the high-precision manufacturing process and reasonable transmission ratio design of the two, the third rack 704 can accurately pull the pull plate 701 to reset by pulling the pull wire 703. During the reset process, the pull plate 701 also benefits from the precise limiting structure between it and the first fixed seat 702, and can be reset smoothly along the predetermined trajectory without offset or jamming, ensuring that the entire system can quickly and accurately return to the initial state and prepare for the next welding work.

[0097] Working principle:

[0098] First, the steel coil is stretched and placed between the support roller 112 and the pressure roller 103 of the feeding mechanism 1, and then the motor 118 is started to drive the first gear 116 to mesh with the second rack 115, so that the feeding mechanisms 1 on both sides of the body 6 move toward each other and initially deliver the steel coil to a suitable position; then, the feeding mechanism 1 drives the guide clamping plate 113 to move when it moves, so as to achieve the center alignment of the steel coils on both sides; when the feeding mechanism 1 is close to the body 6, the receiving plate 708 is unfolded to provide support for the positioning and fixation of the steel coil; then, the pressure roller 103 is driven down by the hydraulic cylinder 101 to clamp and fix the steel coil and accurately deliver it to the welding position; then, the moving mechanism 5 is The cylinder 501 drives the welding mechanism 4 to descend to a predetermined height by sliding on the slide rail 601; then, the welding mechanism 4 is inserted into the inner frame 304 of the fixing mechanism 3, and the inner frame 304 is driven to move, so that the pressure wheel 301 presses and flattens the steel coil; then, the disc electrode 401 performs rolling welding on the steel coil, and the cooling nozzle cools the welding part at the same time; in this process, the wiper plate 308 scrapes off the coolant, which is collected by the liquid collecting hopper 203 and then sent to the water tank 204 to realize the circulation of the coolant; finally, when the feeding mechanism 1 is reset, the receiving plate 708 is reset, and the pulling plate 701 is reset accordingly, so that the entire system returns to its initial state and is ready for the next welding work.

[0099] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For a person skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0100] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. A person skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A steel coil splicing welding device, characterized in that: include: A machine body, on which a slide rail is provided; A moving mechanism for driving the welding mechanism to move is slidably mounted on the slide rail, the moving mechanism comprising a first sliding seat and a second sliding seat, the second sliding seat being driven by a cylinder to lift and slide along the first sliding seat; A welding mechanism for welding, installed below the moving mechanism, comprises a pressing plate, a disc electrode and a cooling nozzle, wherein a guide side plate is installed on the pressing plate; A fixing mechanism for fixing the steel coil comprises an outer frame and an inner frame, wherein the inner frame is slidably mounted in the outer frame, the outer frame is connected to the machine body through a plug-in rod, and pressure wheels and scrapers are respectively provided at both ends of the inner frame; A feeding mechanism for feeding materials is slidably mounted on both sides of the machine body, and a supporting roller and a pressing roller are rotatably mounted on the feeding mechanism, the supporting roller is transmission-connected with the pressing roller, and a guide clamping plate for guiding the stretched steel coil is sleeved on the supporting roller and the pressing roller; The limiting assembly for feeding limiting comprises a pulling plate and a receiving plate, wherein the receiving plate is rotatably mounted on the machine body, the pulling plate is connected to the third rack through a pulling line, and the third rack is meshed with the third gear on the receiving plate.

2. According to the splicing welding device based on steel coil processing according to claim, it is characterized in that: A moving seat is provided at the bottom end of the feeding mechanism, and the moving seat is provided with a base. Moving wheels are rotatably installed on both sides of the base, and the moving wheels on both sides of the base are connected by a rotating shaft. A first bevel gear is installed on the rotating shaft, and two coaxial second bevel gears are installed in the base. The bottom end of the second bevel gear is connected to the third bevel gear through a safety clutch, and the two second bevel gears are respectively connected to the first bevel gear and the third bevel gear.

3. According to the splicing welding device based on steel coil processing according to claim, it is characterized in that: A motor is provided below the machine body, a first gear is installed at the output end of the motor, and the first gear is meshed with a second rack on the feeding mechanism.

4. The splicing welding device based on steel coil processing according to claim 1, characterized in that: When the feeding mechanism approaches the machine body, the guide column of the guide rod slides into the guide groove of the guide block, the guide block pushes the pull plate to deflect through the guide wheel, the pull plate pulls the third rack through the pull wire, and the third rack engages the third gear to unfold the receiving plate.

5. The splicing welding device based on steel coil processing according to claim 1, characterized in that: When the receiving plate is reset by the torsion spring, the third gear meshes with the third rack, and the third rack pulls the pull plate to reset by the pull wire.

6. The splicing welding device based on steel coil processing according to claim 1, characterized in that: The disc electrode is arranged on the pressure plate, the pressure wheel is arranged on one end of the inner frame, the wiper is arranged on the other end of the inner frame, and the liquid collecting hopper is connected with the water tank through a conduit.

7. The splicing welding device based on steel coil processing according to claim 1, characterized in that: The cylinder drives the second sliding seat to descend, so that the welding mechanism is inserted into the inner frame of the fixing mechanism through the guide side plate.

8. The splicing welding device based on steel coil processing according to claim 1, characterized in that: The pressing roller of the feeding mechanism is driven to rise and fall by a hydraulic cylinder to clamp the steel coil.

9. The splicing welding device based on steel coil processing according to claim 1, characterized in that: The moving mechanism slides on the machine body through the slide rail and drives the welding mechanism to move to the welding position.

10. A welding method based on the splicing welding device based on steel coil processing according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, stretch the steel coil and place it between the support roller and the pressure roller of the feeding mechanism, start the motor, and the motor drives the first gear to engage the second rack, so that the feeding mechanisms on both sides of the machine body move toward each other; S2, when the feeding mechanism moves, the moving wheel drives the second gear through the first bevel gear, the second bevel gear and the third bevel gear on the rotating shaft, driving the guide clamping plate to move so that the material rolls on both sides are aligned in the center; S3, when the feeding mechanism is close to the machine body, the guide column of the guide rod slides into the guide groove of the guide block, the guide block pushes the pull plate to deflect, the pull plate pulls the third rack through the pull wire, the third rack engages the third gear to unfold the receiving plate; S4, drive the pressure roller down through the hydraulic cylinder to clamp and fix the steel coil, and send the steel coil to the welding position; S5, the moving mechanism slides on the machine body through the slide rail, and the cylinder drives the second sliding seat to descend, so that the welding mechanism descends; S6. The welding mechanism is inserted into the inner frame of the fixing mechanism through the inclined guide of the guide side plate and the mounting plate, and the inner frame is driven to move in the outer frame, and the pressing wheel presses and flattens the steel coil; S7, the disc electrode performs rolling welding on the steel coil, and the cooling nozzle sprays coolant to cool the welding part; S8, the coolant is scraped off by the scraper, collected by the liquid collecting hopper and sent to the water tank through the conduit to realize the coolant circulation; S9. When the feeding mechanism is reset, the receiving plate is reset through the torsion spring, and the third gear is engaged with the third rack, so that the third rack pulls the pull plate to reset through the pull wire.

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