Uncoiling and feeding device and feeding method thereof

Abstract

The present application relates to the technical field of metal plate processing equipment, and discloses an uncoiling feeding device and a feeding method thereof, which comprises two first limiting rods and two second limiting rods, the two first limiting rods and the two second limiting rods are respectively positioned from the two sides of the steel coil, when the steel coil deviates, the impact force is dispersed, thereby reducing the direct impact on the first limiting rod, reducing the displacement risk, thereby reducing the centering error caused by the displacement of the steel plate in the subsequent flattening and stamping, and further improving the quality of the finished product. The second limiting rod is externally provided with a buffer cylinder, which can absorb impact energy through spring compression in the buffer cylinder when colliding, protecting the steel coil and the first limiting rod and the second limiting rod, and improving the stability of the second limiting rod. In addition, the compression roller is used to constrain the outer layer of the steel coil, preventing the steel coil from loosening during uncoiling, and improving safety; the conveying unit receives the uncoiled steel plate, avoiding surface damage caused by the uncoiled steel plate touching the ground.

Description

Technical Field

[0001] This invention relates to the technical field of metal sheet processing equipment, and specifically to an uncoiling feeding device and its feeding method. Background Technology

[0002] In traditional sheet metal pressing production lines, an uncoiler, a leveler, and a stamping machine are typically connected sequentially to form a continuous sheet metal pressing process. The standard operating steps are as follows: First, the steel coil is fed into the uncoiler, which gradually unwinds the tightly coiled steel into a continuous sheet. Then, the sheet is fed into the leveler to correct any bends and improve its flatness. Finally, the operator places the leveled sheet into the stamping machine for pressing and shaping.

[0003] In the above production process, the uncoiler achieves uncoiling by driving the steel coil to rotate; however, the steel coil is prone to deviation during the rotation and unfolding process; this deviation will cause the steel plate to have centering error when it is transported to the leveling machine, thus affecting the straightening effect of the leveling machine; this deviation continues into the stamping process, which may cause centering error between the mold and the steel plate, thus affecting the quality of the finished product after stamping. Summary of the Invention

[0004] The present invention aims to provide an uncoiling feeding device and feeding method thereof, which reduces the offset generated during the uncoiling process of steel coils, thereby reducing the situation of poor leveling effect and inaccurate stamping alignment caused by steel plate displacement, and thus improving product quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: 1) An uncoiling and feeding device, comprising an uncoiler for unwinding a steel coil into a continuous steel plate, the uncoiler comprising a support, the support being provided with a first limiting structure and a second limiting structure for limiting the position of the steel coil, the first limiting structure comprising two first limiting rods for limiting the steel coil from both sides and being movable toward each other, the second limiting structure comprising two second limiting rods for limiting the steel coil from both sides and being movable toward each other, the second limiting rods being sleeved with a buffer cylinder, a plurality of springs being evenly distributed between the buffer cylinder and the second limiting rods, and further comprising a clamping structure for limiting the position of the outer layer of the steel coil and a conveying structure for receiving the steel plate unwound from the uncoiler.

[0006] In this invention, the uncoiler is used to unwind a steel coil into a continuous steel plate. During the uncoiling process, the two first limiting rods move in opposite directions, causing their sidewalls to contact the two sides of the steel coil, thereby restricting the position of the steel coil. At the same time, the distance between the two first limiting rods can be adjusted according to different sizes of steel coils, so that it can be adapted to various sizes of steel coils.

[0007] When the two first limiting rods limit the steel coil, if the rotating steel coil shifts, it will directly impact the first limiting rods. Continuous impacts may cause the first limiting rods to shift, thereby weakening their limiting effect and causing further deviation of the steel coil. To solve this problem, the present invention uses a second limiting structure that works in conjunction with the first limiting structure to jointly limit the steel coil. Specifically, the two second limiting rods also limit the steel coil from both sides, further limiting its movement. When the steel coil shifts, the impact force is distributed to the first and second limiting rods, reducing the impact force on the first limiting rods and reducing the risk of displacement due to impact. This reduces the centering error that occurs in subsequent leveling and stamping processes due to steel plate displacement, thereby improving the quality of the finished product.

[0008] Secondly, a buffer cylinder is sleeved on the outside of the second limiting rod, and a spring is installed between the buffer cylinder and the limiting rod. When the steel coil is impacted, the steel coil directly contacts the buffer cylinder, and the spring inside the buffer cylinder is compressed to absorb the impact energy, thereby reducing the damage to the steel coil, the first limiting rod and the second limiting rod, and reducing the risk of the second limiting rod shifting due to impact, thus improving the stability of the second limiting rod.

[0009] During the uncoiling process, the clamping structure is used to restrict the position of the outer layer of the steel coil, reducing the possibility of the steel coil suddenly loosening, thereby improving the safety of the uncoiling process; secondly, the conveying structure is used to receive the unfolded steel plate after uncoiling, providing support for the unfolded steel plate and preventing it from drooping to contact the ground, which would cause scratches on the surface of the steel plate.

[0010] 2) An uncoiling and feeding device according to 1), wherein: The first limiting structure also includes a first bidirectional lead screw rotatably connected to the bracket and a first fixed rod fixedly connected to the bracket. One end of the first bidirectional lead screw is connected to a first limiting motor, which is fixedly mounted on the bracket. Two first moving blocks, each corresponding to a first limiting rod, are threaded onto the first bidirectional lead screw. A first connecting block is hinged to the end of the first moving block away from the first bidirectional lead screw. The end of the first connecting block away from the first moving block is fixedly connected to the corresponding first limiting rod. The first connecting block passes through the first fixed rod, and the first connecting block and the first fixed rod are in clearance fit. A first support plate for limiting the position of the first connecting block is provided below the first connecting block.

[0011] In this invention, the first limit motor is started, and the first limit motor drives the first bidirectional lead screw to rotate. As the first bidirectional lead screw rotates, the two first moving blocks can move towards each other, thereby driving the first connecting block and the first limit rod to move accordingly. In this way, the distance between the two first limit rods can be adjusted according to the size of the steel coil to adapt to steel coils of various sizes.

[0012] The end of the first moving block away from the first bidirectional lead screw is hinged to the first connecting block, and the first connecting block passes through the first fixed rod. The first connecting block and the first fixed rod are in clearance fit, so the first connecting block can swing around its hinge point with the first moving block. When it is necessary to install the steel coil on the uncoiler, the first limiting rod can be lifted upward to facilitate the installation of the steel coil. After the steel coil is installed, when it is necessary to restrict the position of the steel coil, the first limiting rod is driven to move downward until the first connecting block contacts the first support plate. The first support plate supports the first connecting block and the first limiting rod, and the first limiting rod contacts the side of the steel coil to limit the position of the steel coil.

[0013] 3) An uncoiling and feeding device according to 1), wherein: The second limiting structure also includes a second bidirectional lead screw rotatably connected to the bracket and a second fixed rod fixedly connected to the bracket. One end of the second bidirectional lead screw is connected to a second limiting motor, which is fixedly mounted on the bracket. Two second moving blocks, each corresponding to a second limiting rod, are threaded onto the second bidirectional lead screw. A second connecting block is hinged to the end of the second moving block away from the second bidirectional lead screw. The end of the second connecting block away from the second moving block is fixedly connected to the corresponding second limiting rod. The second connecting block passes through the second fixed rod, and the second connecting block and the second fixed rod are in clearance fit. A second support plate is provided below the second connecting block to limit the position of the second connecting block.

[0014] In this invention, the second limit motor is started, and the second limit motor drives the second bidirectional lead screw to rotate. As the second bidirectional lead screw rotates, the two second moving blocks can move towards each other, thereby driving the second connecting block and the second limit rod to move accordingly. In this way, the distance between the two second limit rods can be adjusted according to the size of the steel coil to adapt to steel coils of various sizes.

[0015] The end of the second moving block away from the second bidirectional lead screw is hinged to the second connecting block, and the second connecting block passes through the second fixed rod. The second connecting block and the second fixed rod are in clearance fit, so the second connecting block can swing around its hinge point with the second moving block. When it is necessary to install the steel coil on the uncoiler, the second limiting rod can be lifted upward to facilitate the installation of the steel coil. After the steel coil is installed, when it is necessary to restrict the position of the steel coil, the second limiting rod is driven to move downward until the second connecting block contacts the second support plate. The second support plate supports the second connecting block and the second limiting rod, and the second limiting rod contacts the side of the steel coil to limit the position of the steel coil.

[0016] 4) An uncoiling and feeding device according to 1), wherein: The clamping structure includes a clamping bracket, on which a clamping unit is rotatably connected. The clamping unit includes two clamping side plates, and the ends of the two clamping side plates are fixedly connected to a clamping connecting shaft. The two ends of the clamping connecting shaft pass through the corresponding clamping side plates and are rotatably connected to the clamping bracket. A clamping lug is fixedly connected to the clamping connecting shaft. A clamping cylinder is provided below the clamping lug. The clamping cylinder is hinged to the clamping bracket. The output shaft of the clamping cylinder is hinged to the clamping lug. Several clamping shafts are rotatably connected between the two clamping side plates. The ends of the two clamping plates away from the clamping connecting shaft are fixedly connected to a pressure roller for abutting against the outer layer of the steel coil.

[0017] In this invention, by activating the pressing cylinder, the output shaft of the pressing cylinder extends or retracts, thereby driving the pressing lugs hinged to it to move accordingly; the movement of the pressing lugs will drive the pressing connecting shaft to rotate, thereby driving the entire pressing unit to rotate around the pressing connecting shaft, thereby realizing the lifting or pressing of the pressure roller.

[0018] Before the steel coil is loaded onto the uncoiler, the clamping cylinder drives the pressure roller to lift, leaving space for the installation of the steel coil and ensuring smooth installation. After the steel coil is installed, the clamping cylinder drives the pressure roller to press down and maintain pressure, continuously pressing against the outer surface of the steel coil. This restrains the outer layer of the steel coil and reduces the possibility of it suddenly loosening or springing open during the uncoiling process, thereby significantly improving operational safety.

[0019] Several clamping shafts are rotatably connected between the two clamping side plates. When the outer layer of the steel coil comes into contact with the clamping shafts, the clamping shafts can rotate with the steel coil, thereby reducing the friction between the steel coil and the clamping shafts and thus reducing damage to the outer layer of the steel coil.

[0020] 5) An uncoiling and feeding device according to 4), wherein: A support unit for supporting the bottom of the outer layer of the steel coil is rotatably connected to the clamping bracket. The support unit includes two support side plates. The ends of the two support side plates are fixedly connected to a support connecting shaft. The two ends of the support connecting shaft pass through the corresponding support side plates and are rotatably connected to the clamping bracket. A support lug is fixedly connected to the support connecting shaft. A support cylinder is provided below the support lug. The support cylinder is hinged to the clamping bracket. The output shaft of the support cylinder is hinged to the support lug. Several support shafts are rotatably connected between the two support side plates.

[0021] In this invention, by activating the support cylinder, the output shaft of the support cylinder extends or retracts, thereby driving the support lugs hinged to it to move. The movement of the support lugs causes the support connecting shaft to rotate, which in turn causes the entire support unit to rotate around the support connecting shaft, thus supporting the bottom of the outer layer of the steel coil and reducing damage to the bottom of the outer layer of the steel coil caused by contact with the ground. The support shaft is in direct contact with the outer layer of the steel coil; during the rotation and unfolding of the steel coil, the support shaft can rotate with the steel coil, which can reduce the friction between the steel coil and the support shaft, thereby reducing damage to the outer layer of the steel coil.

[0022] 6) An uncoiling and feeding device according to 1), wherein: The conveying structure includes a conveying bracket, on which a conveying unit is slidably connected. A conveying cylinder is connected to the bottom of the conveying unit and is fixedly connected to the conveying bracket. The conveying unit includes two conveying side plates, and several conveying shafts are rotatably connected between the two conveying side plates. A conveying limiting structure for limiting the position of the steel plate is provided between the two conveying side plates.

[0023] In this invention, the conveying unit is used to receive the steel plate after it has been uncoiled by the uncoiler, reducing direct contact between the uncoiled steel plate and the ground, thereby minimizing scratches or contamination. When the conveying unit receives the uncoiled steel plate, the conveying shaft is in direct contact with the steel plate. As the steel plate moves, the conveying shaft rotates accordingly, reducing friction between the steel plate and the conveying shaft, thus reducing damage to the steel plate. Furthermore, if subsequent production equipment needs to be paused or other reasons cause the steel plates to pile up or contact the ground, the conveying cylinder is activated. The conveying cylinder drives the conveying unit upwards, raising the steel plate on the conveying unit and moving its bottom away from the ground, reducing scratches or contamination caused by contact between the steel plate and the ground.

[0024] 7) An uncoiling and feeding device according to 6), wherein: The conveying limiting structure includes a conveying bidirectional lead screw rotatably connected between two conveying side plates. One end of the conveying bidirectional lead screw is connected to a conveying motor, which is fixedly mounted on the conveying side plate. Two limiting posts are threaded onto the conveying bidirectional lead screw. A conveying slide is provided below the conveying bidirectional lead screw, which is fixedly connected between the two conveying side plates. The limiting posts are slidably connected to the conveying slide.

[0025] In this invention, the transmission motor is started, and the transmission motor drives the bidirectional lead screw to rotate. As the bidirectional lead screw rotates, it can drive the two limiting posts to move towards each other, so that the side walls of the two limiting posts come into contact with the two sides of the steel plate, thereby restricting the position of the steel plate. At the same time, the distance between the two limiting posts can be adjusted according to the different sizes of steel plates, so that it can be adapted to steel plates of various sizes.

[0026] 8) A feeding method for an uncoiling feeding device according to 1)-7) includes the following steps: Step 1: Install the steel coil onto the uncoiler; Step 2: Adjust the distance between the two first limit rods so that the sidewalls of the two first limit rods contact the two sides of the steel coil; adjust the distance between the two second limit rods so that the buffer cylinders on the two second limit rods contact the two sides of the steel coil; at the same time, move the clamping structure downwards until it abuts against the outer layer of the steel coil; after the positions of the first limit rods, second limit rods and clamping structure are adjusted, start the uncoiler. Step 3: Place the steel plate, which has been uncoiled by the uncoiler, onto the conveyor structure.

[0027] In this invention, two first limiting rods limit the steel coil from both sides, and two second limiting rods further limit the steel coil from both sides. When the steel coil shifts, the resulting impact force is distributed to the first and second limiting rods, reducing the impact force on the first limiting rod and minimizing the risk of displacement due to impact. This reduces the likelihood of poor leveling and misalignment during stamping caused by steel plate displacement, thereby improving product quality. Secondly, a buffer cylinder is fitted around the second limiting rod, and a spring is installed between the buffer cylinder and the limiting rod. When the steel coil impacts, it directly contacts the buffer cylinder, while the spring inside the buffer cylinder is compressed to absorb the impact energy. This reduces damage to the steel coil, the first limiting rod, and the second limiting rod, while also reducing the risk of displacement of the second limiting rod due to impact and improving its stability.

[0028] During the uncoiling process, the clamping structure is used to restrict the position of the outer layer of the steel coil, reducing the possibility of the steel coil suddenly loosening, thereby improving the safety of the uncoiling process; secondly, the conveying structure is used to receive the unfolded steel plate after uncoiling, providing support for the unfolded steel plate and preventing it from drooping to contact the ground, which would cause scratches on the surface of the steel plate.

[0029] Compared with the prior art, the present invention also has the following technical effects: In this invention, two first limiting rods and two second limiting rods cooperate to limit the movement of the steel coil from both sides. When the steel coil deviates, the impact force is dispersed, thereby reducing the direct impact on the first limiting rods and minimizing the risk of displacement. Compared with existing technologies, this invention reduces alignment errors in subsequent leveling and stamping processes caused by steel plate displacement, thus improving the quality of the finished product. A buffer cylinder is provided outside the second limiting rod, which absorbs impact energy through spring compression during collisions, protecting the steel coil from the first and second limiting rods and improving the stability of the second limiting rod. Furthermore, pressure rollers constrain the outer layer of the steel coil, preventing it from loosening during uncoiling and enhancing safety; the conveying unit receives the unfolded steel plate, preventing it from sagging and touching the ground, thus avoiding surface damage. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of an unwinding and feeding device according to the present invention.

[0031] Figure 2 This is a schematic diagram of the first limiting structure in an unwinding feeding device of the present invention.

[0032] Figure 3 This is a schematic diagram of the structure of the first moving block and the second limiting block in an unwinding feeding device of the present invention.

[0033] Figure 4 This is a schematic diagram of the structure of the second limiting rod and the buffer cylinder in an unwinding feeding device of the present invention.

[0034] Figure 5 This is a schematic diagram of the conveying limiting structure in an unwinding feeding device according to the present invention.

[0035] Figure 6 This is a flowchart of a feeding method for an unwinding feeding device according to the present invention. Detailed Implementation

[0036] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: bracket 2, first limiting rod 3, second limiting rod 4, buffer cylinder 5, spring 6, first bidirectional lead screw 7, first fixed rod 8, first moving block 9, first connecting block 10, first support plate 11, support side plate 12, pressing bracket 13, pressing side plate 14, pressing cylinder 15, pressing shaft 16, pressure roller 17, support cylinder 18, support shaft 20, conveying bracket 21, conveying cylinder 22, conveying side plate 23, slide rail 24, conveying shaft 25, conveying bidirectional lead screw 26, limiting post 27, conveying slide block 28, and slider 30.

[0037] See the example. Figure 1 As shown in the figure, this embodiment provides an uncoiling and feeding device and its feeding method, including an uncoiling machine for unwinding a steel coil into a continuous steel plate; the uncoiling machine includes a support 2.

[0038] See Figure 2 and Figure 3As shown, the bracket 2 is equipped with a first limiting structure and a second limiting structure for limiting the position of the steel coil. The first limiting structure and the second limiting structure are located on both sides of the steel coil, respectively. The first limiting structure includes a first bidirectional lead screw 7 and a first fixed rod 8. Both ends of the first bidirectional lead screw 7 are rotatably connected to the bracket 2 through bearings, and both ends of the first fixed rod 8 are fixedly connected to the bracket 2 through bolts and nuts. A first limiting motor is fixedly connected to the bracket 2 through bolts and nuts. The output shaft of the first limiting motor is fixedly connected to one end of the first bidirectional lead screw 7 through a coupling. Two first moving blocks 9 are threadedly connected to the first bidirectional lead screw 7. A first connecting block 10 is hinged to the end of the first moving block 9 away from the first bidirectional lead screw 7. A first limiting rod 3 is fixedly connected to the end of the first connecting block 10 away from the first moving block 9 through bolts and nuts. The first connecting block 10 passes through the first fixed rod 8, and the first connecting block 10 and the first fixed rod 8 are clearance-fitted. A first support plate 11 is fixedly connected to the bracket 2 through bolts and nuts. The first support plate 11 is located below the two first connecting blocks 10.

[0039] See Figure 4 As shown, the second limiting structure includes a second bidirectional lead screw and a second fixed rod. Both ends of the second bidirectional lead screw are rotatably connected to the bracket 2 via bearings, and both ends of the second fixed rod are fixedly connected to the bracket 2 via bolts and nuts. A second limiting motor is fixedly connected to the bracket 2 via bolts and nuts, and the output shaft of the second limiting motor is fixedly connected to one end of the second bidirectional lead screw via a coupling. Two second moving blocks are threaded onto the second bidirectional lead screw. A second connecting block is hinged to the end of the second moving block away from the second bidirectional lead screw. A second limiting rod 4 is fixedly connected to the end of the second connecting block away from the second moving block via bolts and nuts. A buffer cylinder 5 is sleeved on the second limiting rod 4, and several springs 6 are welded between the buffer cylinder 5 and the second limiting rod 4. The second connecting block passes through the second fixed rod, and the second connecting block and the second fixed rod are in clearance fit. A second support plate is fixedly connected to the bracket 2 via bolts and nuts, and the second support plate is located below the two second connecting blocks.

[0040] It also includes a clamping bracket 13, on which a clamping unit and a support unit are rotatably connected in sequence. The clamping unit includes two clamping side plates 14 and a clamping connecting shaft. The clamping connecting shaft passes through the two clamping side plates 14 in sequence, and the ends of the clamping connecting shaft passing through the clamping side plates 14 are rotatably connected to the clamping bracket 13 via bearings. The clamping connecting shaft is welded to the two clamping side plates 14 respectively. A clamping lug is welded to the middle of the clamping connecting shaft. A clamping cylinder 15 is hinged to the clamping bracket 13 for clamping. The cylinder 15 is located below the clamping lug, and the output shaft of the clamping cylinder 15 is hinged to the bottom of the clamping lug; several clamping shafts 16 are connected between the two clamping side plates 14, and both ends of the clamping shafts 16 are rotatably connected to the corresponding clamping side plates 14 through bearings; a pressure roller 17 is rotatably connected between the ends of the two clamping side plates 14 away from the clamping connecting shaft, and both ends of the pressure roller 17 are rotatably connected to the corresponding clamping side plates 14 through bearings. The pressure roller 17 is used to abut against the top of the outer layer of the steel coil.

[0041] The support unit includes two support side plates 12 and a support connecting shaft. The support connecting shaft passes through the two support side plates 12 in sequence. The ends of the support connecting shaft passing through the support side plates 12 are rotatably connected to the clamping bracket 13 through bearings. The support connecting shaft is welded to the two support side plates 12 respectively. A support lug is welded to the middle of the support connecting shaft. A support cylinder 18 is hinged on the clamping bracket 13. The support cylinder 18 is located below the support lug. The output shaft of the support cylinder 18 is hinged to the bottom of the support lug. Several support rotating shafts 20 are connected between the two support side plates 12. Both ends of the support rotating shaft 20 are rotatably connected to the corresponding support side plate 14 through bearings.

[0042] See Figure 5 As shown, it also includes a conveying bracket 21, on which a conveying unit is connected; the conveying unit includes two arc-shaped conveying side plates 23, and several conveying shafts 25 are connected between the two conveying side plates 23. Both ends of the conveying shafts 25 are rotatably connected to the conveying side plates 23 through bearings; two sliding bases corresponding to the conveying side plates 23 are fixedly connected to the conveying bracket 21 by bolts and nuts. The sliding bases have slide rails 24, and side sliding blocks are slidably connected to the slide rails 24. The side sliding blocks are welded to the conveying side plates 23; a conveying connecting rod is fixedly connected to the middle of the two conveying side plates 23 by bolts and nuts. A conveying cylinder 22 is connected to the bottom of the conveying connecting rod. The conveying cylinder 22 is fixedly connected to the conveying bracket 21 by bolts and nuts. The output shaft of the conveying cylinder 22 is fixedly connected to the transmission connecting rod by bolts and nuts. Both ends of the two conveying side plates 23 are connected to a bidirectional lead screw 26, and both ends of the bidirectional lead screw 26 are rotatably connected to the corresponding conveying side plate 23 via bearings; a conveying motor is fixedly connected to one of the conveying side plates 23 by bolts and nuts, and the output shaft of the conveying motor is fixedly connected to one end of the bidirectional lead screw via a coupling; two conveying slides 28 corresponding to the bidirectional lead screw are fixedly connected between the two conveying side plates 23 by bolts and nuts, and the conveying slides 28 have grooves, in which two sliders 30 are slidably connected; two limit posts 27 are threadedly connected to the bidirectional lead screw, and the two limit posts 27 are welded to the corresponding sliders 30 respectively.

[0043] See Figure 6 The specific implementation process of this embodiment is shown below: Step 1: Lift the two first limit rods 3 and the two second limit rods 4 upwards; install and fix the steel coil on the expansion and contraction drum of the uncoiler; Step 2: After the steel coil is installed and fixed on the tensioning drum 1 of the uncoiler, move the two first limiting rods 3 downward until the first connecting block 9 contacts the first support plate 11; and move the two second limiting rods 4 downward until the second connecting block contacts the second support plate; then, start the first limiting motor, which drives the first bidirectional lead screw 7 to rotate; as the first bidirectional lead screw 7 rotates, the two first moving blocks 9 move towards each other, thereby driving the first connecting block 10 and the first limiting rods 3 to move accordingly, adjusting the distance between the two first limiting rods 3 so that the side walls of the two first limiting rods 3 contact the two sides of the steel coil respectively; After the positions of the two first limit rods 3 are adjusted, the second limit motor is started, and the second limit motor drives the second bidirectional screw to rotate. As the second bidirectional screw rotates, the two second moving blocks move towards each other, thereby driving the second connecting block and the second limit rod 4 to move accordingly. The distance between the two second limit rods 4 is adjusted so that the side walls of the buffer cylinder 5 on the two second limit rods 4 contact the two sides of the steel coil respectively. After the positions of the two second limit rods 4 are adjusted, the clamping cylinder 15 is activated. The output shaft of the clamping cylinder 15 retracts upward, driving the clamping lugs hinged to it to move accordingly, thereby driving the clamping connecting shaft to rotate, which in turn drives the pressure roller 17 to press down and keep the pressure roller 17 in contact with the outer surface of the steel coil, constraining the outer layer of the steel coil and reducing the possibility of sudden loosening or springing open during the uncoiling process; After the position of the pressure roller 17 is adjusted, the uncoiler is started, and the expansion and contraction drum of the uncoiler begins to rotate. As the expansion and contraction drum of the uncoiler rotates, the steel coil is unwound. Subsequently, the support cylinder 18 is started, and the output shaft of the support cylinder 18 retracts downward, driving the support lugs hinged to it to move accordingly, thereby driving the support connecting shaft to rotate, and then driving the entire support unit to rotate until the support rotating shaft 20 contacts the outer layer of the steel coil, thereby supporting the bottom of the outer layer of the steel coil and reducing the damage caused by the contact between the bottom of the outer layer of the steel coil and the ground.

[0044] Step 3: Place the steel plate, which has been uncoiled by the uncoiler, on the conveying unit, with the conveying shaft 25 in direct contact with the steel plate; then start the two conveying motors to drive the conveying bidirectional screw 26 to rotate. As the conveying bidirectional screw 26 rotates, the two limiting posts 27 on the conveying screw move toward each other, thereby adjusting the distance between the two limiting posts 27 so that the side walls of the two limiting posts 27 come into contact with the steel plate. If, during the conveying process of the steel plate uncoiled by the uncoiler, subsequent production equipment needs to be paused or other reasons cause the steel plate to be about to stack or contact the ground, the conveying cylinder 22 is activated. The output axis of the conveying cylinder 22 extends upward, driving the conveying unit to move upward, thereby raising the steel plate on the conveying unit and keeping the bottom of the steel plate away from the ground, reducing the possibility of the steel plate being scratched or contaminated due to contact with the ground.

[0045] The above are merely embodiments of the present invention. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An uncoiling and feeding device, comprising an uncoiler for unwinding a steel coil into a continuous steel sheet, the uncoiler including a support, characterized in that, The support is provided with a first limiting structure and a second limiting structure for limiting the position of the steel coil. The first limiting structure includes two first limiting rods for limiting the steel coil from both sides and being able to move towards each other. The second limiting structure includes two second limiting rods for limiting the steel coil from both sides and being able to move towards each other. The second limiting rods are covered with a buffer cylinder. Several springs are evenly distributed between the buffer cylinder and the second limiting rod. It also includes a clamping structure for limiting the position of the outer layer of the steel coil and a conveying structure for receiving the steel plate unwound from the uncoiler.

2. The unwinding feeding device according to claim 1, characterized in that: The first limiting structure further includes a first bidirectional lead screw rotatably connected to the bracket and a first fixed rod fixedly connected to the bracket. One end of the first bidirectional lead screw is connected to a first limiting motor, which is fixedly mounted on the bracket. Two first moving blocks, each corresponding to a first limiting rod, are threaded onto the first bidirectional lead screw. A first connecting block is hinged to the end of the first moving block away from the first bidirectional lead screw. The end of the first connecting block away from the first moving block is fixedly connected to the corresponding first limiting rod. The first connecting block passes through the first fixed rod, and the first connecting block and the first fixed rod are in clearance fit. A first support plate for limiting the position of the first connecting block is provided below the first connecting block.

3. The uncoiling and feeding device according to claim 1, characterized in that: The second limiting structure also includes a second bidirectional lead screw rotatably connected to the bracket and a second fixed rod fixedly connected to the bracket. One end of the second bidirectional lead screw is connected to a second limiting motor, which is fixedly mounted on the bracket. Two second moving blocks, each corresponding to a second limiting rod, are threaded onto the second bidirectional lead screw. A second connecting block is hinged to the end of the second moving block away from the second bidirectional lead screw. The end of the second connecting block away from the second moving block is fixedly connected to the corresponding second limiting rod. The second connecting block passes through the second fixed rod. The second connecting block and the second fixed rod are in clearance fit. A second support plate for limiting the position of the second connecting block is provided below the second connecting block.

4. The uncoiling and feeding device according to claim 1, characterized in that: The clamping structure includes a clamping bracket, on which a clamping unit is rotatably connected. The clamping unit includes two clamping side plates, the ends of which are fixedly connected to a clamping connecting shaft. The two ends of the clamping connecting shaft pass through the corresponding clamping side plates and are rotatably connected to the clamping bracket. A clamping lug is fixedly connected to the clamping connecting shaft. A clamping cylinder is provided below the clamping lug. The clamping cylinder is hinged to the clamping bracket. The output shaft of the clamping cylinder is hinged to the clamping lug. Several clamping shafts are rotatably connected between the two clamping side plates. The ends of the two clamping plates away from the clamping connecting shaft are fixedly connected to a pressure roller for abutting against the outer layer of the steel coil.

5. The uncoiling and feeding device according to claim 4, characterized in that: The clamping bracket is rotatably connected to a support unit for supporting the bottom of the outer layer of the steel coil. The support unit includes two support side plates, and the ends of the two support side plates are fixedly connected to a support connecting shaft. The two ends of the support connecting shaft pass through the corresponding support side plates and are rotatably connected to the clamping bracket. A support lug is fixedly connected to the support connecting shaft. A support cylinder is provided below the support lug. The support cylinder is hinged to the clamping bracket. The output shaft of the support cylinder is hinged to the support lug. Several support shafts are rotatably connected between the two support side plates.

6. The unwinding feeding device according to claim 1, characterized in that: The conveying structure includes a conveying bracket, on which a conveying unit is slidably connected. A conveying cylinder is connected to the bottom of the conveying unit and is fixedly connected to the conveying bracket. The conveying unit includes two conveying side plates, and several conveying shafts are rotatably connected between the two conveying side plates. A conveying limiting structure for limiting the position of the steel plate is provided between the two conveying side plates.

7. The uncoiling and feeding device according to claim 6, characterized in that: The conveying limiting structure includes a conveying bidirectional lead screw rotatably connected between two conveying side plates. One end of the conveying bidirectional lead screw is connected to a conveying motor, which is fixedly mounted on the conveying side plate. Two limiting posts are threaded onto the conveying bidirectional lead screw. A conveying slide is provided below the conveying bidirectional lead screw. The conveying slide is fixedly connected between the two conveying side plates, and the limiting posts are slidably connected to the conveying slide.

8. A feeding method for an uncoiling feeding device according to any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Install the steel coil onto the uncoiler; Step 2: Adjust the distance between the two first limit rods so that the sidewalls of the two first limit rods contact the two sides of the steel coil; adjust the distance between the two second limit rods so that the buffer cylinders on the two second limit rods contact the two sides of the steel coil; at the same time, move the clamping structure downwards until it abuts against the outer layer of the steel coil; after the positions of the first limit rods, second limit rods and clamping structure are adjusted, start the uncoiler. Step 3: Place the steel plate, which has been uncoiled by the uncoiler, onto the conveyor structure.

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