A welding feeding device

Abstract

The application belongs to the technical field of welding equipment. A welding feeding device comprises a workbench and a pressure disc. Two symmetrical and staggered hydraulic clamping discs are installed on the workbench. A gantry is installed on the workbench. A supporting rod is installed on the side of the pressure disc. The end of the supporting rod is installed outside a rotating head. A first connecting shaft is installed on the side of the rotating head. In the application, the strip head can be smoothly and accurately fed into the uncoiler, which provides reliable guarantee for the smooth progress of the subsequent process. The device integrates a series of automatic functions such as automatic rotation, positioning and pressure, the whole feeding process does not need manual intervention, and the low-efficiency and high-risk operation mode of traditional manual reset of the coil is completely abandoned. This not only reduces the labor intensity and safety risk of the operator, but also ensures the consistency and reliability of the feeding action, and lays a solid foundation for realizing the production goal of full-process automation and intelligentization.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment technology, specifically a welding material feeding device. Background Technology

[0002] The processing of coiled steel into steel pipes is a continuous and highly automated industrial process. The heavy coils are hoisted onto an uncoiler. The uncoiler rotates slowly, unwinding the coiled steel strip to provide a continuous source of raw material for subsequent processes. The strip is fed into a forming machine consisting of multiple forming rolls. These rolls are precisely designed, progressing from flat to U-shaped to O-shaped, gradually bending the strip to align its edges and form an open pipe blank. The formed open pipe blank is then fed into a welding process, where high-frequency current heats and presses the edges together to form a strong weld.

[0003] In modern industrial production, especially in automated production lines in the automotive and home appliance industries, steel coils are a core raw material, and the efficiency and stability of their feeding process are crucial to the overall production cycle. In existing technologies, steel coils are typically placed precisely onto the core of an uncoiler using overhead cranes, automated guided vehicles (AGVs), or other transfer equipment. However, this conventional feeding process suffers from a long-overlooked technical flaw: the free end (i.e., the lead end) of the coil is not effectively secured or restrained after positioning.

[0004] Because steel coils store significant elastic potential energy during rolling and coiling, the internal stress gradually releases when the free end is unconstrained, causing loosening between layers and resulting in "loose coiling" or even "uncoiled coiling." This loose state severely hinders the subsequent uncoiling process: firstly, the uncoiler's clamping device struggles to accurately and reliably grip and guide the strip head; secondly, the loose strip is highly susceptible to deviation and jamming during transport, and may even scratch the equipment or strip surface, affecting product quality.

[0005] To address these issues, the current common solution relies on manual intervention. Operators must halt the production line, enter the work area, and manually tighten and rewind the loose strip steel back onto the coil. This remedial measure not only significantly increases the labor intensity and safety risks for operators, but more importantly, it disrupts the continuity of automated production, severely restricts feeding efficiency, and becomes a bottleneck for improving the automation level of the production line. Therefore, a welding feeding device is needed to solve these problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention proposes a welding feeding device. This invention primarily addresses the problem of coil material easily becoming loose and misaligned during the feeding process, affecting both safety and efficiency.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: a welding feeding device, including a worktable and a pressure plate; two symmetrically staggered hydraulic clamping plates are installed on the worktable, and a gantry frame is installed on the worktable; a support rod is installed on the side of the pressure plate; the end of the support rod is installed outside the rotating head; a first connecting shaft is installed on the side of the rotating head; two third bearing seats are installed outside the first connecting shaft; the third bearing seats are installed on a moving frame; two rollers are rotatably connected to both the front and rear sides of the moving frame; a support rail is provided outside the rollers; a fifth hydraulic rod is installed on the support rail; the end of the fifth hydraulic rod is installed outside the moving frame; a rotating connecting piece is rotatably connected under the worktable; a support plate is installed under the rotating connecting piece; a support cylinder is installed under the support plate; an installation base is installed under the support cylinder; a gear ring is installed under the worktable; a gear meshes inside the gear ring; a second drive motor is installed under the gear; and the second drive motor is installed on the inner wall of the support cylinder.

[0008] Two swing clamping mechanisms are installed on the gantry frame. Each swing clamping mechanism includes two second bearing seats fixedly connected to the gantry frame. A first rotating shaft is rotatably connected inside the second bearing seats. An extension block is fixedly connected outside the first rotating shaft. A fourth hydraulic rod is hinged inside the extension block and hinged outside the gantry frame. An extension frame is fixedly connected outside the first rotating shaft. A second rotating shaft is rotatably connected inside the extension frame. A clamping wheel is fixedly connected outside the second rotating shaft.

[0009] The swing clamping mechanism further includes a first contact plate, and the end of the second rotating shaft away from the gantry is fixedly connected to the first contact plate. The side of the first contact plate overlaps with the second contact plate, and the side of the second contact plate is equipped with a second hydraulic rod, which is installed outside the extension frame.

[0010] The outer arc surface of the clamping wheel has several grooves.

[0011] The hydraulic clamping disc includes a turntable, with a rotating cylinder running through it. Two first bearing seats are rotatably connected to the outside of the rotating cylinder. The first bearing seats are mounted on a worktable. A mounting seat is installed on the side of the first bearing seat located in the middle of the worktable. A first hydraulic rod is mounted on the side of the mounting seat. A coupling is installed at the end of the first hydraulic rod. A moving rod is installed on the side of the coupling. A connector is fixedly connected to the end of the moving rod. Four extrusion wedges are fixedly connected to the outside of the connector. A dovetail block is installed on the inclined surface of each extrusion wedge. A moving support plate is slidably connected to the outside of each dovetail block. A connecting sleeve is slidably connected to the outside of the moving support plate. The connecting sleeve is installed outside the turntable.

[0012] The hydraulic clamping disc also includes a third hydraulic rod mounted on the workbench. The output end of the third hydraulic rod is hinged to a rotating rod, and a support rod is hinged to the lower part of the rotating rod. The support rod is mounted on the workbench. A rotating block is hinged to the lower part of the rotating rod, and a swing rod is hinged inside the rotating block. A clamping plate is hinged to the side of the swing rod near the rotating cylinder, and a base frame is hinged to the bottom end of the swing rod. The base frame is mounted on the workbench.

[0013] A first connecting disc is mounted on the outside of the first connecting shaft. The first connecting disc is connected to a second connecting disc via a connecting belt. A second connecting shaft is connected through the side of the second connecting disc. The second connecting shaft is rotatably connected to the inner wall of the moving frame. A first friction wheel is fixedly connected to the end of the second connecting shaft. A second friction wheel is provided below the first friction wheel. A first drive motor is mounted on the side of the second friction wheel. The first drive motor is mounted on the inner wall of the moving frame. A second proximity switch is mounted on the inner wall of the moving frame. A second protrusion is mounted on the side of the second connecting disc. Two second notches are opened on the side of the pressure plate.

[0014] Eight movable contact mechanisms are installed outside the pressure plate. Each movable contact mechanism includes a mounting frame installed outside the pressure plate. A slide rod is slidably connected inside the mounting frame. A contact block is fixedly connected to one end of the slide rod, and a limit plate is fixedly connected to the other end of the slide rod. A spring is fitted over the slide rod, and both ends of the spring are fixedly connected to the mounting frame and the limit plate, respectively.

[0015] The turntable has a first notch on its outside, and a first protrusion is fixedly connected to the side of the turntable. A horizontal plate is fixedly connected to the outside of the gantry frame, and a first proximity switch is installed on the side of the horizontal plate corresponding to the position of the first protrusion.

[0016] A sixth hydraulic rod is installed outside the support plate, and a limit groove is provided under the worktable.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. In this invention, an innovative dual-turntable alternating working mode allows one station to unwind and feed material while another station simultaneously prepares material. This parallel operation achieves seamless connection in the feeding process, reducing the waiting time in the traditional single-station feeding mode to near zero, thereby significantly increasing the number of feeding operations per unit time and greatly improving the overall production line efficiency. This invention also features an actively pressing pressure plate mechanism. Before unwinding, the pressure plate applies stable and controllable pressure to the outer ring of the coil, effectively overcoming the loosening and springback tendency of the coil caused by the release of internal stress. This device not only fundamentally avoids the problems of coil tilting, falling over, or even unwinding described in the background technology, but also ensures that the lead can be fed into the uncoiler smoothly and accurately, providing a reliable guarantee for the smooth progress of subsequent processes. This device integrates a series of automated functions such as automatic rotation, positioning, and clamping. The entire feeding process does not require manual intervention, completely eliminating the inefficient and high-risk operation method of traditional manual coil reset. This not only reduces the labor intensity and safety risks of operators, but also ensures the consistency and reliability of feeding actions, laying a solid foundation for achieving the goal of fully automated and intelligent production.

[0019] 2. In this invention, a movable clamping wheel mechanism is provided. During the dynamic adjustment process such as rotation and positioning of the coiled material with the turntable, the clamping wheel can continuously and actively press against the surface of the coiled material. This is equivalent to applying a dynamic "binding force" to the coiled material, effectively overcoming the loosening between layers caused by inertia and vibration. It fundamentally solves the problem of the coiled material being prone to loosening and tilting during movement in the background technology, ensuring absolute stability during position adjustment. By applying variable extrusion force to the rotation axis of the clamping wheel through a hydraulic mechanism, its rotational resistance can be precisely adjusted. High resistance mode (during material preparation and rotation): Increase the extrusion force to make the clamping wheel generate strong rotational resistance, forming a "braking" effect, ensuring that the coiled material remains tight in any non-unwinding state; Low resistance mode (during unwinding): By reducing extrusion pressure and releasing rotational resistance, the uncoiling equipment or operators can smoothly and steadily unwind the strip with minimal tension. This adaptive adjustment capability perfectly balances the contradictory requirements of "preventing loosening" and "easy unwinding," avoiding situations where the coil breaks open instantly due to excessive tension or the strip gets stuck due to insufficient tension. The combination of dynamic stability and tension control ensures that the entire feeding process, from coil loading and rotational positioning to strip unwinding, is in a highly controllable and stable state. This not only completely eliminates the risk of production interruptions and equipment failures caused by unstable coil conditions but also significantly reduces reliance on human experience due to its fully automated control, providing key technical support for achieving a highly efficient and reliable fully automated feeding production line.

[0020] 3. This invention integrates proximity switch detection and motor drive to form a closed-loop control system. When a target feature on the rotating component is detected by the proximity switch, the system immediately issues a stop command. However, the key to this invention is that it does not simply rely on the motor's power-off to stop; instead, it introduces an independent mechanical braking mechanism. This completely solves the "overshoot" problem caused by the inertia of the rotating component, ensuring that the target position can be precisely adjusted to the preset angle. At the instant the motor stops, this invention uses a third hydraulic rod linkage mechanism to drive the clamping plate to quickly apply radial pressure to the rotating cylinder, achieving rigid locking using strong friction. This dual-protection mechanism... This design ensures that even if vibrations or external forces occur during subsequent assembly, welding, or other processes, the angle of the workstation will never deviate. This "positioning and locking" capability provides an absolutely stable foundation for subsequent high-precision coil assembly. The entire positioning and locking process is fully automated, requiring no manual measurement or adjustment. This not only eliminates human error but also significantly shortens auxiliary time. The friction wheel drive design itself also has certain buffering and overload protection functions, improving the system's operational robustness. In summary, this invention ensures that each workstation can enter the next process with the exact same and extremely precise posture, making it a key technological link in achieving highly automated and standardized production. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the welding feeding device in this invention;

[0023] Figure 2 This is the present invention. Figure 1 Enlarged structural diagram of section A;

[0024] Figure 3 This is a three-dimensional structural schematic diagram of the swing clamping mechanism in this invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the workbench in this invention, viewed from below.

[0026] Figure 5 This is a schematic diagram of the three-dimensional cross-section of the movable frame in this invention;

[0027] Figure 6 This is a three-dimensional structural schematic diagram of the active contact mechanism in this invention;

[0028] Figure 7 This is a schematic cross-sectional view of the movable frame in this invention.

[0029] Figure 8 This is a schematic diagram of the three-dimensional cross-section of the hydraulic clamping disc in this invention;

[0030] Figure 9 This is a side view of the three-dimensional structure of the hydraulic clamping disc in this invention;

[0031] Figure 10 This is the present invention. Figure 9 Enlarged structural diagram of section B;

[0032] In the diagram: 1. Workbench; 2. Hydraulic clamping plate; 201. Turntable; 202. Rotating cylinder; 203. First bearing seat; 204. Mounting base; 205. First hydraulic rod; 206. Coupling; 207. Moving rod; 208. Connecting head; 209. Extrusion wedge; 210. Dovetail block; 211. Moving support plate; 212. Connecting sleeve; 213. First notch; 214. Swing rod; 215. Clamping plate; 216. 1. Base frame; 217. Third hydraulic rod; 218. Rotating rod; 219. Support rod; 220. Rotating block; 3. Gantry frame; 4. Swinging clamping mechanism; 401. Second bearing seat; 402. First rotating shaft; 403. Extension block; 404. Fourth hydraulic rod; 405. Extension frame; 406. Second rotating shaft; 407. Clamping wheel; 408. First contact plate; 409. Second contact plate; 410. Second hydraulic rod; 5. Pressure plate; 6. Support rod; 7. Rotating head; 8. First connecting shaft; 9. Third bearing seat; 10. Moving frame; 11. Roller; 12. Support rail; 13. Fifth hydraulic rod; 14. First connecting plate; 15. Connecting belt; 16. Second connecting plate; 17. Second connecting shaft; 18. First friction wheel; 19. Second friction wheel; 20. First drive motor; 21. Second proximity switch; 22. Second protrusion; 23. Rotating connector; 24. Support plate; 25. Gear ring; 26. Gear; 27. Second drive motor; 28. Limiting groove; 29. ​​Sixth hydraulic rod; 30. Support cylinder; 31. Mounting base; 32. Second notch; 33. Movable contact mechanism; 331. Mounting bracket; 332. Slide rod; 333. Contact block; 334. Limiting plate; 335. Spring; 34. First protrusion; 35. Horizontal plate; 36. First proximity switch. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 10As shown, a welding feeding device includes a worktable 1 and a pressure plate 5; two symmetrically staggered hydraulic clamping plates 2 are installed on the worktable 1, and a gantry frame 3 is installed on the worktable 1; a support rod 6 is installed on the side of the pressure plate 5; the end of the support rod 6 is installed outside a rotating head 7; a first connecting shaft 8 is installed on the side of the rotating head 7; two third bearing seats 9 are installed outside the first connecting shaft 8; the third bearing seats 9 are installed on a movable frame 10; two rollers 11 are rotatably connected to both the front and rear sides of the movable frame 10; and the rollers 11 are equipped with... Support rail 12; a fifth hydraulic rod 13 is mounted on support rail 12; the end of the fifth hydraulic rod 13 is mounted outside the movable frame 10; a rotating connector 23 is rotatably connected under the worktable 1; a support plate 24 is mounted under the rotating connector 23; a support cylinder 30 is mounted under the support plate 24; a mounting base 31 is mounted under the support cylinder 30; a gear ring 25 is mounted under the worktable 1; a gear 26 meshes inside the gear ring 25; a second drive motor 27 is mounted under the gear 26; the second drive motor 27 is mounted on the inner wall of the support cylinder 30.

[0035] When feeding the coiled material, the coiled material is placed on the hydraulic clamping plate 2. Then, the controller controls the second drive motor 27 to rotate. The second drive motor 27 drives the gear 26 and the gear ring 25 to rotate. The gear ring 25 drives the worktable 1, the gantry 3, and the turntable 201 to rotate. When the coiled material rotates to the position of the corresponding pressure plate 5, the controller controls the second drive motor 27 to stop working. Then, the controller controls the fifth hydraulic rod 13 to extend. The fifth hydraulic rod 13 drives the moving frame 10 and the pressure plate 5 to press against the surface of the coiled material. Then, one end of the coiled material is unwound and inserted into the uncoiler. The uncoiler then works to pull the coiled material. At this time, the coiled material rotates and is unloaded. At this time, the pressure plate 5 presses against the surface of the coiled material, thereby preventing the coiled material from tilting or falling over during the unwinding process, thus ensuring stable feeding of the coiled material. The second drive motor 27 drives the worktable 1 and the two turntables 201 to rotate, thereby realizing that the two turntables 201 alternately feed and clamp the coiled material, thus enabling faster feeding.

[0036] like Figure 1 and Figure 3 As shown, two swing clamping mechanisms 4 are installed on the gantry frame 3. The swing clamping mechanism 4 includes two second bearing seats 401 fixedly connected to the gantry frame 3. A first rotating shaft 402 is rotatably connected inside the second bearing seat 401. An extension block 403 is fixedly connected outside the first rotating shaft 402. A fourth hydraulic rod 404 is hinged inside the extension block 403. The fourth hydraulic rod 404 is hinged outside the gantry frame 3. An extension frame 405 is fixedly connected outside the first rotating shaft 402. A second rotating shaft 406 is rotatably connected inside the extension frame 405. A clamping wheel 407 is fixedly connected outside the second rotating shaft 406.

[0037] During the feeding of the coiled material, the coiled material is placed on the hydraulic clamping plate 2. The controller controls the fourth hydraulic rod 404 to drive the extension block 403 and the first rotating shaft 402 to rotate downwards. The first rotating shaft 402 drives the extension frame 405 and the pressure wheel 407 to rotate downwards. Then, the pressure wheel 407 moves down and presses against the surface of the coiled material. Then, the controller controls the second drive motor 27 to rotate. The second drive motor 27 drives the gear 26 and the gear ring 25 to rotate. At this time, the gear ring 25 drives the worktable 1, the gantry 3 and the turntable 201 to rotate. When the coiled material rotates... When the material reaches the position corresponding to the pressure plate 5, the controller controls the second drive motor 27 to stop working and controls the fifth hydraulic rod 13 to extend. The fifth hydraulic rod 13 drives the moving frame 10 and the pressure plate 5 to press against the surface of the coil. Then, one end of the coil is unfolded and inserted into the uncoiler. During the rotation of the turntable 201 and the worktable 1, the pressure roller 407 presses the coil. In this scheme, the pressure roller 407 presses the coil to prevent it from becoming loose, thereby stably realizing the coil position change and making the coil feeding process more stable.

[0038] like Figure 1 and Figure 3 As shown, the swing clamping mechanism 4 also includes a first contact plate 408, and the end of the second rotating shaft 406 away from the gantry 3 is fixedly connected to the first contact plate 408. The side of the first contact plate 408 overlaps with the second contact plate 409, and the side of the second contact plate 409 is equipped with a second hydraulic rod 410. The second hydraulic rod 410 is installed outside the extension frame 405.

[0039] The second hydraulic rod 410 is equipped with a proportional valve. The extension and retraction range of the second hydraulic rod 410 are precisely controlled by the proportional valve to adjust the squeezing force of the second contact plate 409 on the first contact plate 408.

[0040] After the roll of material is clamped onto the surface of the turntable 201, the controller controls the extension of the fifth hydraulic rod 13. The fifth hydraulic rod 13 drives the moving frame 10 and the pressure plate 5 to press against the surface of the roll. The controller also controls the extension of the second hydraulic rod 410, which in turn increases the pressure of the second contact plate 409 on the first contact plate 408. This increases the rotational resistance of the first contact plate 408, the second rotating shaft 406, and the pressure wheel 407. Then, the controller controls the rotation of the second drive motor 27, which drives the gear 26 and the gear ring 25 to rotate. The gear ring 25 drives the worktable 1, the gantry 3, and the turntable 201 to rotate to the position corresponding to the pressure plate 5. Finally, the controller controls the fifth hydraulic rod 13 to drive the moving frame 10 and the pressure plate 5 to press against the surface of the roll. The disc 5 is pressed against the surface of the coil, and then the controller controls the second hydraulic rod 410 to shorten. At this time, the squeezing force of the second contact disc 409 on the first contact disc 408 is reduced, thereby reducing the resistance that the pressure roller 407 needs to overcome during rotation. This reduces the force required for the pressure roller 407 to rotate, and then one end of the coil is pulled to unfold and insert into the uncoiler. At this time, the force required to pull the coil by hand is smaller. In this scheme, the damping of the pressure roller 407 is adjusted by the second hydraulic rod 410. When the rotational damping of the pressure roller 407 is large, the pressure roller 407 presses the coil, making it less likely to loosen when the coil rotates and adjusts its position. When the rotational damping of the pressure roller 407 is small, the force required to manually pull the coil to unfold is smaller, making manual operation more convenient.

[0041] like Figure 3 As shown, the outer arc surface of the clamping wheel 407 has several grooves.

[0042] As the coil rotates with the worktable 1, the pressure roller 407 presses against the surface of the coil. Due to the grooves on the surface of the pressure roller 407, the friction between the pressure roller 407 and the contact surface of the coil is increased, making it less likely for the pressure roller 407 to slip on the surface of the coil. This allows the pressure roller 407 to press the coil more stably, thus preventing the coil from loosening as the worktable 1 rotates. During the unwinding process of the coil, the pressure roller 407 is affected by damping, causing it to slide against the relative coil. This allows the grooves to scrape and clean the burrs on the surface of the coil, thus enabling the pressure roller 407 to clean the burrs on the part in contact with the coil.

[0043] like Figures 8-10As shown, the hydraulic clamping disc 2 includes a turntable 201, through which a rotating cylinder 202 is connected. Two first bearing seats 203 are rotatably connected to the outside of the rotating cylinder 202. The first bearing seats 203 are mounted on the worktable 1. A mounting seat 204 is mounted on the side of the first bearing seat 203 located in the middle of the worktable 1. A first hydraulic rod 205 is mounted on the side of the mounting seat 204. A coupling 206 is mounted on the end of the first hydraulic rod 205. A moving rod 207 is mounted on the side of the coupling 206. A connector 208 is fixedly connected to the end of the moving rod 207. Four extrusion wedges 209 are fixedly connected to the outside of the connector 208. A dovetail block 210 is installed on the inclined surface of the extrusion wedge 209. A moving support plate 211 is slidably connected to the outside of the dovetail block 210. A connecting sleeve 212 is slidably connected to the outside of the moving support plate 211. The connecting sleeve 212 is installed outside the turntable 201.

[0044] When clamping the roll of material, the binding strap is passed through the rolled material, and then the binding strap and the roll are placed on the surface of the turntable 201 through the first notch 213 by the hook of the gantry crane, with the roll outside the four movable support plates 211. Then the binding strap is removed through the first notch 213. Then the controller controls the first hydraulic rod 205 to shorten and drive the movable rod 207 to move. As the movable rod 207 moves, it drives the four extrusion inclined blocks 209 to move. In turn, the extrusion inclined blocks 209 control the four movable support plates 211 to move away from each other through the dovetail block 210, so that the movable support plates 211 support the inner wall of the roll and successfully complete the clamping of the roll.

[0045] like Figures 9-10 As shown, the hydraulic clamping disc 2 also includes a third hydraulic rod 217 mounted on the worktable 1. The output end of the third hydraulic rod 217 is hinged to a rotating rod 218. A support rod 219 is hinged to the bottom of the rotating rod 218. The support rod 219 is mounted on the worktable 1. A rotating block 220 is hinged to the bottom of the rotating rod 218. A swing rod 214 is hinged inside the rotating block 220. A clamping plate 215 is hinged to the side of the swing rod 214 near the rotating cylinder 202. A base frame 216 is hinged to the bottom end of the swing rod 214. The base frame 216 is mounted on the worktable 1.

[0046] Before installing the rolled material, the first notch 213 is rotated to a vertically upward position. Then, the controller shortens the third hydraulic rod 217, causing the rotating rod 218 to rotate. Simultaneously, the rotating rod 218 rotates, and the swing rod 214 moves away from the rotating drum 202 via the rotating block 220. This causes the clamping plate 215 to contact the rotating drum 202, restricting its rotation using friction. This prevents the first notch 213 from rotating and keeps it in a vertically upward position. The binding strap is then passed through the rolled material. The gantry crane hook places the binding strap and the rolled material through the first notch 213 onto the turntable 201 surface, ensuring the binding strap smoothly enters the first notch 213 as it moves downwards, preventing the turntable 201 and the rolled material from trapping the binding strap. After completing the installation of the rolled material... After clamping, the controller controls the second drive motor 27 to work. The second drive motor 27 drives the gear 26 and the gear ring 25 to rotate. The gear ring 25 drives the worktable 1, the gantry 3 and the turntable 201 to rotate. When the coil rotates to the position of the corresponding pressure plate 5, the controller controls the second drive motor 27 to stop working. Then, the controller controls the fifth hydraulic rod 13 to drive the moving frame 10 and the pressure plate 5 to press against the surface of the coil. At this time, the controller controls the third hydraulic rod 217 to extend and drive the rotating rod 218 to rotate. As the rotating rod 218 rotates, the rotating block 220 controls the swing rod 214 to move away from the rotating cylinder 202, thereby separating the clamping plate 215 from the rotating cylinder 202 and releasing the restriction on the rotating cylinder 202. Then, one end of the coil is pulled, thereby rotating the coil, the turntable 201 and the rotating cylinder 202, ensuring stability during the coil clamping and adjustment process.

[0047] It should be noted that the hinge point between the rotating rod 218 and the support rod 219 is designed as a finely adjustable floating structure to avoid rigid jamming. In actual operation, when the third hydraulic rod 217 is shortened, the rotating rod 218 rotates slightly around the hinge point of the support rod 219, which pulls the upper end of the swing rod 214 towards the rotating cylinder 202 (not away from it) through the rotating block 220, thereby causing the clamping plate 215 to press against the rotating cylinder 202.

[0048] like Figure 5 and Figure 7As shown, a first connecting disc 14 is mounted on the outside of the first connecting shaft 8. The first connecting disc 14 is connected to a second connecting disc 16 via a connecting belt 15. A second connecting shaft 17 is connected through the side of the second connecting disc 16. The second connecting shaft 17 is rotatably connected to the inner wall of the moving frame 10. A first friction wheel 18 is fixedly connected to the end of the second connecting shaft 17. A second friction wheel 19 is provided below the first friction wheel 18. A first drive motor 20 is mounted on the side of the second friction wheel 19. The first drive motor 20 is mounted on the inner wall of the moving frame 10. A second proximity switch 21 is mounted on the inner wall of the moving frame 10. A second protrusion 22 is mounted on the side of the second connecting disc 16. Two second notches 32 are opened on the side of the pressure plate 5.

[0049] An electromagnetic brake is provided on the right side of the first drive motor 20, which is used to keep the output shaft of the first drive motor 20 and the second friction wheel 19 stable when the first drive motor 20 is de-energized.

[0050] During the feeding of the coiled material, the coiled material is placed on the turntable 201. The controller controls the fourth hydraulic rod 404 to drive the extension block 403 and the first rotating shaft 402 to rotate downwards. This causes the first rotating shaft 402 to drive the extension frame 405 and the pressure roller 407 to rotate downwards, thereby causing the pressure roller 407 to move down and press against the surface of the coiled material. Then, the controller controls the second drive motor 27 to rotate, which drives the gear 26 and the gear ring 25 to rotate. This causes the gear ring 25 to drive the worktable 1, the gantry 3, and the turntable 201 to rotate. When the coiled material rotates to the position of the corresponding pressure plate 5, the controller controls the second drive motor 27 to stop working. The controller controls the first drive motor 20 to drive the second friction wheel 19 to rotate. The second friction wheel 19 drives the first friction wheel 18 and the second connecting shaft 17 to rotate through friction. The second connecting shaft 17 drives the first connecting shaft 8 and the rotating head 7 to rotate through the second connecting disc 16, the connecting belt 15 and the first connecting disc 14 until the second proximity switch 21 detects the position of the second protrusion 22. At this time, the position of the second notch 32 corresponds to the pressure wheel 407. At this time, the controller controls the first drive motor 20 to stop working and precisely adjusts the second notch 32 to correspond to the pressure wheel 407. The pressure plate 5 smoothly fits and presses against the side of the roll material to restrict the roll material and smoothly and stably unfold and transport the roll material.

[0051] It should be noted that during unwinding, the pressure plate 5 moves with the coiled material via friction transmission, rather than being forcibly driven by the first drive motor 20. Specifically, the first drive motor 20 is only used for initial positioning (adjusting the position of the second notch 32 via the second friction wheel 19 and the first friction wheel 18). After positioning, the electromagnetic brake locks the pressure plate 5, which rotates freely during unwinding due to the friction of the coiled material. The transmission system (first connecting shaft 8, etc.) then idles without interfering with the motor.

[0052] like Figure 5-6As shown, eight movable contact mechanisms 33 are installed outside the pressure plate 5. Each movable contact mechanism 33 includes a mounting frame 331 installed outside the pressure plate 5. A slide rod 332 is slidably connected inside the mounting frame 331. A contact block 333 is fixedly connected to one end of the slide rod 332, and a limit plate 334 is fixedly connected to the other end of the slide rod 332. A spring 335 is provided on the outer sleeve of the slide rod 332. The two ends of the spring 335 are fixedly connected to the mounting frame 331 and the limit plate 334, respectively.

[0053] After the coil material feeding on the surface of the turntable 201 is completed, the contact block 333, no longer obstructed, uses the elastic force of the spring 335 to move the moving rod 207 and the contact block 333, thereby moving the contact block 333 between two adjacent connecting sleeves 212. It should be noted that when the coil material feeding is completed and the pressure plate 5 disengages from the coil material, the contact block 333 loses the squeezing resistance of the outer ring of the coil material. The spring 335 (in a compressed state) pushes the limiting plate 334 and the sliding rod 332, causing the contact block 333 to move radially outward and engage with the gap between the adjacent connecting sleeves 212. This process is automatically completed by the elastic potential energy of the spring, ensuring that the contact block 333 can push the connecting sleeve 212 when the turntable 201 rotates. The first drive motor 20 drives the second friction wheel 19 to rotate, which in turn drives the first friction wheel 18 and the second connecting shaft 17 to rotate through friction. The second connecting shaft 17 then drives the first connecting shaft 8 and the rotating head 7 to rotate via the second connecting disc 16, the connecting belt 15, and the first connecting disc 14. This causes the pressure plate 5 and the contact block 333 to rotate, which in turn pushes the connecting sleeve 212 and the turntable 201 to rotate. This controls the first notch 213 to rotate to a vertically upward position. Then, the rotation is controlled by... The controller shortens the third hydraulic rod 217, which in turn drives the rotating rod 218 to rotate. While the rotating rod 218 is rotating, the swing rod 214 is moved away from the rotating cylinder 202 by the rotating block 220. This causes the clamping plate 215 to come into contact with the rotating cylinder 202. The clamping plate 215 uses friction to restrict the rotation of the rotating cylinder 202 and the turntable 201, so that the first notch 213 is kept in a stable vertical position. This facilitates the subsequent process of clamping the coiled material onto the turntable 201 with the binding strap, and makes it easier to remove the binding strap later.

[0054] like Figure 1-2 and Figure 9-10 As shown, a first notch 213 is provided on the outside of the turntable 201, a first protrusion 34 is fixedly connected to the side of the turntable 201, a horizontal plate 35 is fixedly connected to the outside of the gantry frame 3, and a first proximity switch 36 is installed on the side of the horizontal plate 35 corresponding to the position of the first protrusion 34.

[0055] The first drive motor 20 drives the second friction wheel 19 to rotate, which in turn drives the first friction wheel 18 and the second connecting shaft 17 to rotate through friction. This, in turn, causes the second connecting shaft 17 to drive the first connecting shaft 8 and the rotating head 7 to rotate through the second connecting plate 16, the connecting belt 15, and the first connecting plate 14. This causes the pressure plate 5 and the contact block 333 to rotate, which in turn pushes the connecting sleeve 212 and the turntable 201 to rotate until the first proximity switch 36 detects the first protrusion 34. At this point, the first notch 213 rotates to a vertically upward position. The controller then controls the first drive motor 20 to stop working. At the same time, the controller controls the third hydraulic rod 217 to shorten and drive the rotating rod 218 to rotate. While the rotating rod 218 is rotating, the rotating block 220 controls the swing rod 214 to move away from the rotating cylinder 202, so that the clamping plate 215 contacts the rotating cylinder 202. The clamping plate 215 uses friction to restrict the rotation of the rotating cylinder 202, accurately adjusting the first notch 213 to a vertically upward position, which facilitates the subsequent smooth clamping of the coil.

[0056] like Figure 4 As shown, a sixth hydraulic rod 29 is installed on the outside of the support plate 24, and a limit groove 28 is opened under the worktable 1.

[0057] Before clamping the coil onto the surface of the turntable 201, the controller first controls the sixth hydraulic rod 29 to extend into the limiting groove 28. At this time, the limiting groove 28 and the sixth hydraulic rod 29 cooperate to limit the worktable 1, preventing the worktable 1 from rotating and ensuring that the turntable 201 is in a fixed position and cannot move, allowing for stable coil clamping and unwinding. After coil clamping and unwinding are completed, when it is necessary to adjust the position of the two turntables 201, the controller controls the sixth hydraulic rod 29 to shorten, thereby moving the sixth hydraulic rod 29 out of the limiting groove 28 and releasing the rotation of the worktable 1. The system first sets a limit switch, then controls the second drive motor 27 to work via the controller. The second drive motor 27 drives the gear 26 and gear ring 25 to rotate, and the gear ring 25 drives the worktable 1, gantry 3 and turntable 201 to rotate, rotating the turntable 201 180 degrees to rotate the clamped roll to the loading station for loading, thereby completing the exchange of the positions of the turntable 201 on the clamping station and the loading station. In this solution, the sixth hydraulic rod 29 limits the limit slot 28 and the worktable 1, so that the worktable 1 will not rotate when the roll is clamped and unloaded, ensuring that the roll is clamped and unloaded stably.

[0058] During operation, when loading the coiled material, the binding strap is first passed through the coiled material. Then, the binding strap and the coiled material are placed on the surface of the turntable 201 using the hook of the gantry crane. The binding strap enters the first notch 213, and the coil is located outside the four movable support plates 211. The binding strap is then removed through the first notch 213. The controller controls the first hydraulic rod 205 to shorten, which moves the movable rod 207. As the movable rod 207 moves, it also moves the four extrusion inclined blocks 209. The extrusion inclined blocks 209 control the four movable support plates 211 to move away from each other via the dovetail block 210. The movable support plates 211 support the inner wall of the coil, completing the installation of the coil. At the same time, the fourth hydraulic rod 404 above the turntable 201 is shortened. The fourth hydraulic rod 404 moves the extension block 403 and the first rotating shaft. 402 rotates downwards, causing the first rotating shaft 402 to drive the extension frame 405 and the pressure wheel 407 to rotate downwards. The pressure wheel 407 moves down and presses against the surface of the coiled material to compress it and prevent it from becoming loose. Then, the controller controls the sixth hydraulic rod 29 to shorten, and the sixth hydraulic rod 29 moves out of the limit groove 28, releasing the rotation limit on the worktable 1. Then, the controller controls the second drive motor 27 to work, and the second drive motor 27 drives the gear 26 and the gear ring 25 to rotate. The gear ring 25 drives the worktable 1, the gantry 3 and the turntable 201 to rotate. When the coiled material rotates to the position of the corresponding pressure plate 5, the controller controls the second drive motor 27 to stop working. The controller controls the sixth hydraulic rod 29 to extend, and the sixth hydraulic rod 29 inserts into the limit groove 28 to limit the rotation of the worktable 1.Simultaneously, the controller controls the first drive motor 20 to drive the second friction wheel 19 to rotate. The second friction wheel 19 drives the first friction wheel 18 and the second connecting shaft 17 to rotate through friction. The second connecting shaft 17 drives the first connecting shaft 8 and the rotating head 7 to rotate through the second connecting disc 16, the connecting belt 15, and the first connecting disc 14, until the second proximity switch 21 detects the position of the second protrusion 22. At this time, the position of the second notch 32 corresponds to the pressure wheel 407. At this time, the controller controls the first drive motor 20 to stop working, and at the same time, the electromagnetic brake on the first drive motor 20 is activated, clamping the output shaft of the first drive motor 20. The second friction wheel 19, the first friction wheel 18, the second connecting shaft 17, and the first connecting... All shafts 8 stop rotating, stabilizing the second notch 32 and corresponding to the pressure roller 407. Then, the controller controls the extension of the fifth hydraulic rod 13, which drives the moving frame 10 and pressure plate 5 to press against the surface of the coil. Next, the controller controls the extension of the third hydraulic rod 217, causing the rotating rod 218 to rotate. Simultaneously, the rotating rod 218 rotates, and the rotating block 220 controls the swing rod 214 to move away from the rotating drum 202. The clamping plate 215 separates from the rotating drum 202, releasing the restriction on the rotating drum 202. At this point, one end of the coil is inserted into the uncoiler. The uncoiler's operation pulls the coil to rotate and unwind it. After the coil rotation ends, the electromagnetic brake is controlled to release the output shaft of the first drive motor 20. The controller controls the first drive motor 20 to rotate. The first drive motor 20 uses the second friction wheel 19 to drive the first friction wheel 18 and the second connecting shaft 17 to rotate through friction. The second connecting shaft 17 drives the first connecting shaft 8 and the rotating head 7 to rotate through the second connecting plate 16, the connecting belt 15 and the first connecting plate 14. At the same time, the contact block 333 on the pressure plate 5 is controlled to rotate through the mounting bracket 331 and the slide rod 332. The rotation of the contact block 333 pushes the connecting sleeve 212 and the moving support plate 211 to rotate. At this time, the turntable 201 rotates until the first proximity switch 36 detects the first protrusion 34. At this time, the controller controls the first drive motor 20 to stop working and controls the electromagnetic brake to work. The notch 213 rotates to a vertically upward position. Then, the controller controls the third hydraulic rod 217 to shorten, driving the rotating rod 218 to rotate. Simultaneously, the rotating rod 218 rotates, and the rotating block 220 controls the swing rod 214 to move away from the rotating cylinder 202. The clamping plate 215 contacts the rotating cylinder 202, using friction to restrict its rotation. Then, the controller controls the sixth hydraulic rod 29 to shorten, moving it out of the limiting groove 28 and releasing the rotation limit on the worktable 1. The controller then controls the second drive motor 27 to operate, repeating the above actions to rotate the worktable 1. The positions of the two turntables 201 continuously change, achieving an intermittent, rapid feeding process.

[0059] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A welding feeding device, comprising a worktable (1) and a pressure plate (5); characterized in that: Two symmetrically staggered hydraulic clamping discs (2) are installed on the workbench (1), and a gantry frame (3) is installed on the workbench (1); a support rod (6) is installed on the side of the pressure plate (5); the end of the support rod (6) is installed outside the rotating head (7); a first connecting shaft (8) is installed on the side of the rotating head (7); two third bearing seats (9) are installed outside the first connecting shaft (8); the third bearing seats (9) are installed on the moving frame (10); two rollers (11) are rotatably connected to the front and rear sides of the moving frame (10); a support rail (12) is provided outside the rollers (11); the support rail (12) A fifth hydraulic rod (13) is installed on the top; the end of the fifth hydraulic rod (13) is installed outside the movable frame (10); a rotating connector (23) is rotatably connected under the worktable (1); a support plate (24) is installed under the rotating connector (23); a support cylinder (30) is installed under the support plate (24); an installation base (31) is installed under the support cylinder (30); a gear ring (25) is installed under the worktable (1); a gear (26) meshes inside the gear ring (25); a second drive motor (27) is installed under the gear (26); the second drive motor (27) is installed on the inner wall of the support cylinder (30); The hydraulic clamping disc (2) includes a turntable (201); a rotating cylinder (202) is connected through the turntable (201); two first bearing seats (203) are rotatably connected to the outside of the rotating cylinder (202); the first bearing seats (203) are mounted on the worktable (1); a mounting seat (204) is mounted on the side of the first bearing seat (203) located in the middle of the worktable (1); a first hydraulic rod (205) is mounted on the side of the mounting seat (204); a coupling (206) is mounted on the end of the first hydraulic rod (205). The coupling (206) has a moving rod (207) mounted on its side; the end of the moving rod (207) is fixedly connected to a connector (208); four extrusion wedges (209) are fixedly connected to the connector (208); a dovetail block (210) is installed on the inclined surface of the extrusion wedge (209); a moving support plate (211) is slidably connected to the dovetail block (210); a connecting sleeve (212) is slidably connected to the moving support plate (211); and the connecting sleeve (212) is installed outside the turntable (201).

2. The welding feeding device according to claim 1, characterized in that: Two swing clamping mechanisms (4) are installed on the gantry frame (3); the swing clamping mechanism (4) includes two second bearing seats (401) fixedly connected to the gantry frame (3); a first rotating shaft (402) is rotatably connected inside the second bearing seat (401); an extension block (403) is fixedly connected outside the first rotating shaft (402); a fourth hydraulic rod (404) is hinged inside the extension block (403); the fourth hydraulic rod (404) is hinged outside the gantry frame (3); an extension frame (405) is fixedly connected outside the first rotating shaft (402); a second rotating shaft (406) is rotatably connected inside the extension frame (405), and a clamping wheel (407) is fixedly connected outside the second rotating shaft (406).

3. The welding feeding device according to claim 2, characterized in that: The swing clamping mechanism (4) further includes a first contact plate (408); the end of the second rotating shaft (406) away from the gantry (3) is fixedly connected to the first contact plate (408); a second contact plate (409) overlaps the side of the first contact plate (408); a second hydraulic rod (410) is installed on the side of the second contact plate (409); the second hydraulic rod (410) is installed outside the extension frame (405).

4. The welding feeding device according to claim 3, characterized in that: The outer arc surface of the clamping wheel (407) has several grooves.

5. A welding feeding device according to claim 4, characterized in that: The hydraulic clamping disc (2) also includes a third hydraulic rod (217) mounted on the workbench (1); the output end of the third hydraulic rod (217) is hinged to a rotating rod (218); a support rod (219) is hinged to the rotating rod (218); the support rod (219) is mounted on the workbench (1); a rotating block (220) is hinged to the rotating rod (218); a swing rod (214) is hinged inside the rotating block (220); a clamping plate (215) is hinged to the side of the swing rod (214) near the rotating cylinder (202); a base frame (216) is hinged to the bottom end of the swing rod (214); the base frame (216) is mounted on the workbench (1).

6. The welding feeding device according to claim 5, characterized in that: A first connecting disc (14) is mounted on the outside of the first connecting shaft (8); the first connecting disc (14) is connected to a second connecting disc (16) via a connecting belt (15); a second connecting shaft (17) is connected through the side of the second connecting disc (16); the second connecting shaft (17) is rotatably connected to the inner wall of the moving frame (10); a first friction wheel (18) is fixedly connected to the end of the second connecting shaft (17); a second friction wheel (19) is provided below the first friction wheel (18); a first drive motor (20) is mounted on the side of the second friction wheel (19); the first drive motor (20) is mounted on the inner wall of the moving frame (10); a second proximity switch (21) is mounted on the inner wall of the moving frame (10); a second protrusion (22) is mounted on the side of the second connecting disc (16); two second notches (32) are opened on the side of the pressure plate (5).

7. A welding feeding device according to claim 6, characterized in that: Eight movable contact mechanisms (33) are installed outside the pressure plate (5); each movable contact mechanism (33) includes a mounting frame (331) installed outside the pressure plate (5); a slide rod (332) is slidably connected inside the mounting frame (331); a contact block (333) is fixedly connected to one end of the slide rod (332); a limit plate (334) is fixedly connected to the other end of the slide rod (332); a spring (335) is provided on the outer sleeve of the slide rod (332); the two ends of the spring (335) are fixedly connected to the mounting frame (331) and the limit plate (334) respectively.

8. A welding feeding device according to claim 7, characterized in that: The turntable (201) has a first notch (213) on its outside; a first protrusion (34) is fixedly connected to the side of the turntable (201); a horizontal plate (35) is fixedly connected to the outside of the gantry frame (3); a first proximity switch (36) is installed on the side of the horizontal plate (35) corresponding to the position of the first protrusion (34).

9. A welding feeding device according to claim 8, characterized in that: A sixth hydraulic rod (29) is installed on the outside of the support plate (24); a limit groove (28) is opened under the worktable (1).

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