Cold-rolled steel strip uncoiling and cutting integrated device and cutting method

Abstract

The invention relates to the technical field of cold-rolled steel strip machining equipment, in particular to a cold-rolled steel strip uncoiling and cutting integrated device and a cutting method. The cold-rolled steel strip uncoiling and cutting integrated device comprises an axial moving mechanism, a cutting mechanism and a clamping mechanism; the cutting mechanism comprises a mounting plate, a cutting tool assembly and a switching mechanism, the mounting plate is connected with the axial moving mechanism, and the switching mechanism is used for changing the cutting direction of the cutting tool assembly; the clamping mechanism comprises a rotating mechanism and two clamping structures, the rotating mechanism is arranged on the mounting plate, the two clamping structures are connected with the two ends of the rotating mechanism, the two clamping structures are located on the two sides of the cutting direction of the cutting tool assembly correspondingly, and the rotating mechanism is used for driving the two clamping structures to be attached to the bandage; the clamping structure is used for applying pulling force away from the cutting opening to the bandage; the cutting mechanism and the clamping mechanism are arranged, so that the internal stress of the bandage at the cutting part is effectively reduced, the fracture smoothness of the bandage is improved, and the problems of cutting stagnation, incomplete fracture and the like are avoided.

Description

Technical Field

[0001] This invention relates to the technical field of cold-rolled steel strip processing equipment, specifically to an integrated device for uncoiling and cutting cold-rolled steel strip, and also to a cutting method. Background Technology

[0002] During the production, storage, and transportation of cold-rolled steel strip, a bandage is typically wrapped around the outer circumference of the steel coil. Common forms of bandage include flexible materials such as plastic wrapping tape and waterproof bandage, and they are often wrapped in a curved shape around the outer circumference of the steel coil. With the increasing automation of cold-rolled steel strip processing, there are also higher requirements for efficiency and precision in the cutting of the bandage on the surface of the steel coil.

[0003] Patent CN118595823B discloses an uncoiling and cutting device and its cutting method for processing cold-rolled steel strip. Its working principle is as follows: The placement mechanism supports a support column through which a cold-rolled steel coil is threaded via a fixed bracket on the top of a sliding plate. A power motor drives the support column to rotate via the meshing of a rotating gear and a drive gear, providing power for uncoiling the steel coil. The uncoiling mechanism is based on a rotating track connected to the support frame. The pressure of the liquid inside the mounting plate, transmitted through the sliding plate after the support column is pressed, causes the liquid to enter the output box via a water tank, thereby pushing the hydraulic telescopic rod to extend and causing the rotating track to rotate towards the steel coil, ensuring contact between the hydraulic tank and the outer wall of the steel coil. As the steel coil rotates, its end contacts the hydraulic tank, forcing the hydraulic tank to move downwards along the rotating track. The piston frame squeezes the liquid inside the hydraulic tank, pushing the cutting edge inside the hydraulic ring to extend outwards, thus cutting the outer bandage of the steel coil. The discharge mechanism clamps the steel coil through the cooperation of a clamping rod, a clamping frame, and a pushing spring, while simultaneously discharging the broken bandage through the transmission of meshing column one and meshing column two, completing the material conveying process.

[0004] Although the above solution automates bandage cutting and reduces manual intervention, it does not take into account the need for reverse auxiliary tension when cutting flexible bandages. It relies solely on the unidirectional cutting force of the cutting blade, which can easily lead to cutting stagnation, especially when the bandage is highly flexible, resulting in a significant reduction in cutting efficiency. Summary of the Invention

[0005] To address the aforementioned issues, an integrated uncoiling and cutting device for cold-rolled steel strip is provided. By incorporating a cutting mechanism and a clamping mechanism, the internal stress of the bandage at the cutting point is effectively reduced, improving the smoothness of bandage breakage and avoiding problems such as cutting stagnation and incomplete breakage.

[0006] To address the problems of existing technologies, this invention provides an integrated device for uncoiling and cutting cold-rolled steel strip, comprising an axial moving mechanism capable of moving along the axial direction of the steel coil, a cutting mechanism, and a clamping mechanism. The cutting mechanism includes a mounting plate, a cutting tool assembly for cutting the bandage, and a switching mechanism. The mounting plate is connected to the axial moving mechanism to enable the mounting plate to move along the axial direction of the steel coil. The cutting tool assembly is located in the middle of one side of the mounting plate, and the switching mechanism is located on the other side of the mounting plate and connected to the cutting tool assembly. The switching mechanism is used to change the cutting direction of the cutting tool assembly. The clamping mechanism includes a rotating mechanism and two clamping structures. The rotating mechanism is located on the mounting plate, and the two clamping structures are connected to both ends of the rotating mechanism. The two clamping structures are located on both sides of the cutting direction of the cutting tool assembly. The rotating mechanism is used to drive the two clamping structures to adhere to the bandage, and the clamping structures are used to apply a tensile force to the bandage away from the cutting direction.

[0007] Preferably, the clamping structure includes a clamping arm connected to a rotating mechanism, two jaw assemblies, and a second linear driver; the two jaw assemblies are arranged on the clamping arm from near to far from the cutting tool assembly, and the jaw assembly closer to the cutting tool assembly is slidably connected to the clamping arm; the second linear driver is connected to the slidable jaw assembly.

[0008] Preferably, the gripper assembly includes a mounting base, gripping claws, and a resilient connecting assembly; the mounting base is connected to a gripping arm; the gripping claws are positioned on the side of the mounting base facing the bandage; the resilient connecting assembly connects the gripping claws and the mounting base, and the resilient connecting assembly provides thrust to the gripping claws away from the mounting base.

[0009] Preferably, the surface of the clamping claw that contacts the bandage is provided with a hook claw, which is used to provide a pulling force on the bandage along the tangential direction of the steel coil circumference, and the pulling forces provided by the two clamping claws are in opposite directions.

[0010] Preferably, the elastic connection assembly includes a connecting plate and a plurality of guide rods; the connecting plate is used to mount the clamping claws; the plurality of guide rods are parallel to each other, one end of the guide rod is connected to the connecting plate, the other end of the guide rod passes through the mounting base and is movably connected to the mounting base, and a spring is sleeved on the guide rod to provide a thrust to the connecting plate away from the mounting base.

[0011] Preferably, the clamping structure further includes a guide component connected to a slidable gripper component for guiding the slidable gripper component to orient and engage with the fixed gripper component.

[0012] Preferably, the rotating mechanism includes a base, two rotating shafts, and a self-locking rotating structure; the base is connected to the switching mechanism; the two rotating shafts are arranged parallel to each other on the base, and two clamping structures are respectively connected to the two rotating shafts; the self-locking rotating structure is used to drive the two rotating shafts to rotate synchronously in opposite directions and to lock the rotation angle of the two rotating shafts.

[0013] Preferably, the switching mechanism includes a switching plate and a rotary drive assembly; the switching plate is arranged parallel to one side of the mounting plate, and the cutting tool assembly and the clamping mechanism are both mounted on the switching plate; the rotary drive assembly is used to drive the switching plate to rotate 90 degrees in the vertical plane.

[0014] Preferably, the switching mechanism further includes a fixing component mounted on the mounting plate. The fixing component is used to fix the switching plate and prevent the switching plate from rotating. The switching plate has multiple fixing holes that mate with the fixing component.

[0015] A cutting method, applied to an integrated cold-rolled steel strip uncoiling and cutting device, includes the following steps:

[0016] S1. The switching mechanism adjusts the cutting direction of the cutting tool assembly according to the way the bandage is wrapped on the steel coil;

[0017] S2. If the bandage is axially attached to the surface of the steel coil, the switching mechanism adjusts the cutting direction of the cutting tool assembly to be perpendicular to the axis of the steel coil. If the bandage is circularly attached to the surface of the steel coil, the switching mechanism adjusts the cutting direction of the cutting tool assembly to be parallel to the axis of the steel coil.

[0018] S3. The axial movement mechanism adjusts the position of the cutting mechanism so that the cutting tool assembly corresponds to the bandage;

[0019] S4. The cutting tool assembly abuts against the bandage, and the two clamping structures contact the two sides of the bandage at the position to be cut.

[0020] S5. During the process of the cutting tool assembly cutting the bandage, the two clamping structures apply opposite tensions to the cutting position of the bandage, which helps the bandage break, and at the moment of breakage, the clamping structures clamp the bandage.

[0021] The advantages of this invention compared to the prior art are:

[0022] 1. This invention includes a cutting mechanism and a clamping mechanism. The cutting mechanism adjusts the cutting direction of the cutting tool assembly according to the bandage winding pattern, ensuring the cutting direction matches the bandage winding pattern. Once the cutting direction is determined, the rotating mechanism of the clamping mechanism drives two clamping structures to rotate and abut against the sides of the bandage to be cut. Simultaneously, by maintaining the driving force, the clamping structures apply initial pressure to the bandage, effectively preventing relative sliding between the clamping structures and the bandage during subsequent cutting. As the cutting tool assembly abuts against the bandage and gradually cuts it, the two clamping structures simultaneously apply opposing pulling forces away from the cutting edge to both sides of the bandage cutting position, forming a synergistic effect with the cutting tool assembly. This effectively reduces the internal stress of the bandage at the cutting point, improves the smoothness of bandage breakage, and avoids problems such as cutting stagnation and incomplete breakage.

[0023] 2. This invention comprises a clamping arm, two gripper assemblies, and a second linear actuator. The two gripper assemblies abut against the same side of the bandage to be cut. The static friction between the gripper assemblies and the bandage effectively restricts their relative sliding. When the cutting tool assembly starts cutting, the second linear actuator simultaneously applies a force to the sliding gripper assembly. This force, limited by static friction, is converted into a pulling force on the bandage and works in conjunction with the reverse pulling force of the clamping structure on the other side, providing auxiliary breaking power for the flexible bandage. At the moment the bandage breaks, the sliding gripper assembly moves rapidly toward the fixed gripper assembly due to a sudden decrease in resistance. The two gripper assemblies squeeze and clamp the flexible bandage between them, effectively preventing the flexible bandage from falling off or shifting due to loss of tension, thus achieving efficient clamping of the flexible bandage at the moment of breakage.

[0024] 3. This invention includes a mounting base, clamping claws, and an elastic connecting assembly. The elastic connecting assembly applies a thrust to the clamping claws away from the mounting base, keeping the clamping claws in an outward-extending posture. This provides sufficient movement margin for subsequent contact with the curved bandage. When one of the clamping claws contacts the bandage and stops moving due to resistance, the mounting base continues to move with the clamping arm. At this time, the elastic connecting assembly can achieve relative sliding between the clamping claws and the mounting base through compression, providing space for the other clamping claw to continue moving until it contacts the bandage. This effectively compensates for the adaptation difference between the planar clamping claws and the curved bandage, thereby achieving stable contact between the two clamping claws and different positions of the curved bandage. Attached Figure Description

[0025] Figure 1 This invention relates to a three-dimensional integrated device for uncoiling and cutting cold-rolled steel strip. Figure 1 .

[0026] Figure 2 This invention relates to a three-dimensional integrated device for uncoiling and cutting cold-rolled steel strip. Figure 2 .

[0027] Figure 3 This invention relates to a three-dimensional integrated device for uncoiling and cutting cold-rolled steel strip. Figure 3 .

[0028] Figure 4 This is a perspective view of the rotating mechanism, clamping arm, gripper assembly, second linear driver, and guide assembly in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0029] Figure 5 This is a perspective view of the rotating shaft, clamping arm, mounting base, clamping claws, and elastic connecting assembly in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0030] Figure 6 This is a left view of the clamping arm, mounting base, clamping claws, and elastic connecting assembly in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0031] Figure 7 This is a perspective view of the mounting base, clamping claws, and elastic connecting components in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0032] Figure 8 This is a perspective view of the clamping arm, mounting base, second linear driver, and slide bar in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0033] Figure 9 This is a perspective view of the base, rotating shaft, and self-locking rotating structure in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0034] Figure 10 This is a perspective view of the mounting plate, switching plate, rotary drive assembly, fixing assembly, rotating mechanism, and clamping structure in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0035] Figure 11 This is a perspective view of the mounting plate, switching plate, and fixing components in an integrated cold-rolled steel strip uncoiling and cutting device of the present invention.

[0036] The diagram is labeled as follows: 1. Bandage; 2. Axial movement mechanism; 3. Cutting mechanism; 31. Mounting plate; 32. Cutting tool assembly; 33. Switching mechanism; 331. Switching plate; 332. Rotary drive assembly; 333. Fixing assembly; 3331. Insert rod; 3332. First linear actuator; 4. Rotation mechanism; 41. Base; 42. Rotating shaft; 43. Self-locking rotation structure; 431. Gear set; 432. Worm gear assembly; 5. Clamping structure; 51. Clamping arm; 52. Claw assembly; 521. Mounting seat; 522. Clamping claw; 5221. Hook; 523. Elastic connection assembly; 5231. Connecting plate; 5232. Guide rod; 5233. Spring; 53. Second linear actuator; 54. Guide assembly; 541. Slide rod. Detailed Implementation

[0037] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0038] Reference Figures 1 to 11As shown: An integrated device for uncoiling and cutting cold-rolled steel strip includes an axial moving mechanism 2 capable of moving along the axial direction of the steel coil, a cutting mechanism 3, and a clamping mechanism. The cutting mechanism 3 includes a mounting plate 31, a cutting tool assembly 32 for cutting a bandage 1, and a switching mechanism 33. The mounting plate 31 is connected to the axial moving mechanism 2 to enable the mounting plate 31 to move along the axial direction of the steel coil. The cutting tool assembly 32 is located in the middle of one side of the mounting plate 31. The switching mechanism 33 is located on the other side of the mounting plate 31 and connected to the cutting tool assembly 32. The switching mechanism 33 is used to change the cutting direction of the cutting tool assembly 32. The clamping mechanism includes a rotating mechanism 4 and two clamping structures 5. The rotating mechanism 4 is located on the mounting plate 31. The two clamping structures 5 are connected to both ends of the rotating mechanism 4, and the two clamping structures 5 are located on both sides of the cutting direction of the cutting tool assembly 32. The rotating mechanism 4 is used to drive the two clamping structures 5 to adhere to the bandage 1. The clamping structures 5 are used to apply a pulling force to the bandage 1 away from the cutting direction.

[0039] According to the wrapping pattern of the bandage 1, the switching mechanism 33 adjusts the cutting direction of the cutting tool assembly 32. If the bandage 1 is axially attached to the surface of the steel coil, the switching mechanism 33 adjusts the cutting direction of the cutting tool assembly 32 to be perpendicular to the axis of the steel coil to ensure that the cutting path is perpendicular to the bandage 1. If the bandage 1 is circularly attached to the surface of the steel coil, the switching mechanism 33 drives the cutting tool assembly 32 to rotate to a cutting direction parallel to the axis of the steel coil to meet the cutting requirements of the circular bandage 1 and achieve the adaptation of the cutting direction to the wrapping pattern of the bandage 1. After the cutting direction is determined, the rotating mechanism 4 in the clamping mechanism drives the two clamping structures 5 connected at both ends to rotate towards the bandage 1 until the two clamping structures 5 respectively abut against the two sides of the position to be cut on the bandage 1. At this time, the rotating mechanism 4 maintains a certain driving force so that the clamping structures 5 apply initial pressure to both sides of the bandage 1 to ensure that there is no relative sliding between the clamping structures 5 and the bandage 1 during the subsequent cutting process, thus preparing for the application of tension. Preparation: Control the cutting tool assembly 32 to move towards the bandage 1, so that the cutting tool assembly 32 comes into contact with the bandage 1 and begins the cutting operation. As the cutting tool assembly 32 gradually cuts the bandage 1, the two clamping structures 5 apply opposite pulling forces away from the cutting edge to both sides of the bandage 1 at the cutting position. That is, the clamping structure 5 on one side of the cutting edge pulls the bandage 1 away from the cutting edge, and the clamping structure 5 on the other side pulls the bandage 1 in the opposite direction. At the moment when the bandage 1 completely breaks under the combined action of the cutting tool assembly 32 and the opposite pulling force, the clamping structure 5 fixes the cut bandage 1 and takes the cut bandage 1 away. By applying opposite pulling forces away from the cutting edge to both sides of the bandage 1 at the cutting position during the cutting stage of the cutting tool assembly 32, the internal stress of the bandage 1 at the cutting part is effectively reduced, the smoothness of the bandage 1 breaking is improved, and problems such as cutting stagnation and incomplete breaking are avoided.

[0040] Reference Figure 3 and Figure 4 As shown: The clamping structure 5 includes a clamping arm 51 connected to the rotating mechanism 4, two jaw assemblies 52 and a second linear actuator 53; the two jaw assemblies 52 are arranged on the clamping arm 51 from near to far about the cutting tool assembly 32, and the jaw assembly 52 closer to the cutting tool assembly 32 is slidably connected to the clamping arm 51; the second linear actuator 53 is connected to the slidable jaw assembly 52.

[0041] When the bandage 1 is made of plastic wrapping tape or waterproof bandage 1, these materials are relatively flexible and the clamping structure 5 cannot directly clamp them. Therefore, two gripper assemblies 52 are provided. When the two gripper assemblies 52 on the clamping arm 51 simultaneously abut against the same side of the bandage 1 to be cut, static friction is formed between the gripper assemblies 52 and the surface of the bandage 1 due to direct contact. This static friction can limit the relative sliding between the gripper assemblies 52 and the bandage 1. As the cutting tool assembly 32 moves towards the flexible bandage 1 and begins the cutting operation, the second linear driver 53 is activated synchronously. It applies a force away from the cutting tool assembly 32 to the slidable gripper assembly 52. ​​Under this force, the slidable gripper assembly 52 tends to move along the clamping arm 51 toward the fixed gripper assembly 52, but due to... Due to the static friction between the gripper assembly 52 and the bandage 1, the slidable gripper assembly 52 cannot slide immediately. Instead, it converts the force into a pulling force on the bandage 1, which works in conjunction with the reverse pulling force of the clamping structure 5 on the bandage 1. At the moment the bandage 1 breaks, the resistance of the bandage 1 on the slidable gripper assembly 52 decreases sharply. The sliding tendency previously limited by static friction is converted into actual sliding. Under the driving force of the second linear actuator 53, the slidable gripper assembly 52 moves rapidly along the clamping arm 51 toward the fixed gripper assembly 52. ​​The flexible bandage 1 between the two gripper assemblies 52 is squeezed, clamping the broken flexible bandage 1 between the two gripper assemblies 52, preventing the flexible bandage 1 from falling off or shifting due to loss of tension, thus achieving efficient clamping of the flexible bandage 1 at the moment of breakage.

[0042] Reference Figure 4 and Figure 5 As shown: The gripper assembly 52 includes a mounting base 521, a gripping claw 522, and an elastic connecting assembly 523; the mounting base 521 is connected to the gripping arm 51; the gripping claw 522 is disposed on the side of the mounting base 521 facing the bandage 1; the elastic connecting assembly 523 is used to connect the gripping claw 522 and the mounting base 521, and the elastic connecting assembly 523 is used to provide a thrust to the gripping claw 522 away from the mounting base 521.

[0043] In the initial state, the elastic connecting component 523 of the gripper assembly 52 applies a pushing force away from the mounting base 521 to the gripper 522, keeping the gripper 522 in an outward-extending posture. The gripper 522 maintains the maximum initial distance between itself and the mounting base 521. When entering the bandage 1 cutting preparation stage, the rotating mechanism 4 drives the gripper arm 51 and the two gripper assemblies 52 to move towards the curved bandage 1 surrounding the outer circumference of the steel coil. At this time, the two gripper assemblies 52 are mounted on the same gripper arm 51 and are in the same plane. The curved bandage 1 is distributed at different positions on different circumferential planes centered on the center of the steel coil. As the gripper arm 51 continues to move towards the bandage 1, one of the gripper assemblies 522 (designated as gripper 522A) will contact the surface of the bandage 1 before the other gripper 522 (designated as gripper 522B). After gripper 522A contacts the bandage 1, the bandage 1 engages with gripper 522. A generates reverse resistance, preventing it from continuing to move towards the bandage 1. At this time, the gripper 522A stops moving, while the gripper arm 51, driven by the rotating mechanism 4, continues to move the mounting bases 521 of the two gripper assemblies 52 towards the bandage 1. The gripper 522B, not in contact with the bandage 1, continues to move synchronously with the mounting base 521. Although the gripper 522A has stopped moving, the mounting base 521 connected to it continues to move towards the bandage 1 with the gripper arm 51, causing relative sliding between the gripper 522A and the mounting base 521. At this time, the elastic connecting component 523 connecting the two is compressed due to the fixed gripper 522A and the moving mounting base 521. The elastic force of the elastic connecting component 523 gradually increases, but always maintains the supporting force on the gripper 522A, ensuring stable contact between the gripper 522A and the bandage 1, thereby achieving stable contact between the two grippers 522 and different positions of the curved bandage 1.

[0044] Reference Figure 5 and Figure 6 As shown: The surface of the clamping claw 522 that contacts the bandage 1 is provided with a hook 5221. The hook 5221 is used to provide a pulling force on the bandage 1 along the tangential direction of the steel coil circumference, and the pulling forces provided by the two clamping claws 522 are in opposite directions.

[0045] As the clamping arm 51 moves toward the bandage 1, the two clamping claws 522 successively contact the curved bandage 1. At this time, the hooks 5221 on the surface of the clamping claws 522, under the pushing force of the elastic connecting component 523, squeeze the surface of the bandage 1. Because the hooks 5221 have a protruding structure, during the squeezing process, the hooks 5221 will embed into the surface of the bandage 1, achieving initial hooking of the bandage 1. When the cutting tool assembly 32 is about to cut the bandage 1, the hooks 5221 of the two clamping claws 522 still maintain the hooking state of the bandage 1, continuously applying opposing tension. At the moment the bandage 1 breaks, the fracture surface of the bandage 1 loses its grip. The removal of overall tension will cause uncontrolled swaying. At this time, the hook 5221 has embedded and hooked the bandage 1, preventing the bandage 1 from separating from the clamping claw 522. At the same time, the movable clamping claw 522 moves towards the fixed clamping claw 522 under the action of the second linear actuator 53 due to the disappearance of the resistance of the bandage 1. The hooks 5221 of the two clamping claws 522 further squeeze the bandage 1, causing the bandage 1 to deform between the hooks 5221, strengthening the hooking effect, and ensuring that the broken bandage 1 always remains connected to the clamping claw 522, thereby solving the problem of the bandage 1 separating from the clamping claw 522 due to uncontrolled swaying at the moment of breakage.

[0046] Reference Figure 5 and Figure 7 As shown: The elastic connection assembly 523 includes a connecting plate 5231 and a plurality of guide rods 5232; the connecting plate 5231 is used to install the clamping claw 522; the plurality of guide rods 5232 are parallel to each other, one end of the guide rod 5232 is connected to the connecting plate 5231, and the other end of the guide rod 5232 passes through the mounting base 521 and is movably connected to the mounting base 521; a spring 5233 is sleeved on the guide rod 5232 to provide a thrust to the connecting plate 5231 in a direction away from the mounting base 521.

[0047] When the device is not started, the elastic connecting assembly 523 is in its initial state. At this time, the elasticity of the spring 5233 itself applies a pushing force to the connecting plate 5231 away from the mounting base 521. This pushing force drives the guide rod 5232, which is fixed to the connecting plate 5231, to slide relative to the mounting base 521 along the axial direction until the guide rod 5232 can no longer slide, and the distance between the connecting plate 5231 and the mounting base 521 reaches its maximum. When the rotating mechanism 4 drives the clamping arm 51 and the clamping claw assembly 52 to move towards the bandage 1, the clamping claw 522 gradually approaches the bandage 1 and finally abuts against the bandage 1. At this time, the bandage 1 generates a reverse force on the clamping claw 522. This force is transmitted to the connecting plate 5231 through the clamping claw 522 and is evenly distributed to each guide rod 5232. Under the push of the reverse force, multiple guide rods 5232 slide towards the mounting base 521 along their own axial direction. The connecting plate 5231 moves towards the mounting base 521 synchronously with the guide rods 5232. As the direction of movement increases, the distance between the connecting plate 5231 and the mounting base 521 gradually shortens. During this process, the spring 5233 sleeved on the guide rod 5232 is compressed due to the relative proximity of the connecting plate 5231 and the mounting base 521. The elastic deformation of the spring 5233 gradually increases, forming an elastic force opposite to the direction of the opposing force. This elastic force is transmitted to the clamping claw 522 through the connecting plate 5231, so that the clamping claw 522 maintains a stable contact pressure on the bandage 1, avoiding the clamping claw 522 from detaching from the bandage 1 due to insufficient pressure. When the bandage 1 is cut, the reaction force of the bandage 1 on the clamping claw 522 disappears, and the spring 5233 begins to release the previously stored elastic potential energy. The elastic potential energy is converted into the power to push the connecting plate 5231. The spring 5233 pushes the connecting plate 5231 to move away from the mounting base 521 and reset, thereby realizing the automatic adaptation of the elastic connecting component 523 to the movement of the clamping claw 522.

[0048] Reference Figure 4 and Figure 8 As shown: The clamping structure 5 also includes a guide component 54, which is connected to the slidable gripper component 52 and is used to guide the slidable gripper component 52 to orientedly dock with the fixed gripper component 52.

[0049] Specifically, the guide assembly 54 includes at least two slide rods 541, which are parallel to each other and whose two ends are connected to the clamping arm 51. The mounting base 521 in the slidable gripper assembly 52 is slidably connected to the two slide rods 541.

[0050] As the slidable mounting base 521 moves continuously along the slide bar 541, the mounting bases 521 of the two gripper assemblies 52 gradually approach each other. Due to the guide and limit of the slide bar 541, the slidable mounting base 521 remains parallel to the fixed mounting base 521 during the movement. When the slidable mounting base 521 moves to a position close to the fixed mounting base 521, the gripping claws 522 of the two gripper assemblies 52 also approach each other. Under the guidance of the slide bar 541, the gripping surfaces of the two gripping claws 522 are completely aligned without any misalignment. When the bandage 1 breaks, the bandage 1 between the two gripping claws 522 is compressed. Because the gripping claws 522 are aligned, the bandage 1 is subjected to uniform force, and there will be no situation of excessive local compression or no force. This lays the foundation for complete clamping after breakage, thereby solving the problem of misalignment of the two gripping claws 522 and incomplete clamping, and improving the reliability of clamping the bandage 1 after cutting.

[0051] Reference Figure 3 , Figure 4 and Figure 9 As shown: The rotating mechanism 4 includes a base 41, two rotating shafts 42 and a self-locking rotating structure 43; the base 41 is connected to the switching mechanism 33; the two rotating shafts 42 are arranged parallel to each other on the base 41, and the two clamping structures 5 are respectively connected to the two rotating shafts 42; the self-locking rotating structure 43 is used to drive the two rotating shafts 42 to rotate synchronously in opposite directions, and lock the rotation angle of the two rotating shafts 42.

[0052] Specifically, the self-locking rotation structure 43 includes a gear set 431 and a worm gear assembly 432. The gear set 431 has an even number of gears that mesh sequentially, and the two gears at both ends of the gear set 431 are respectively connected to two rotating shafts 42. The worm gear assembly 432 is used to drive one of the rotating shafts 42 to rotate.

[0053] When the bandage 1 is wound in a ring around the outer circumference of the steel coil, the cutting mechanism 3 approaches the bandage 1, and the rotating mechanism 4 starts. The worm gear assembly 432 in the self-locking rotating structure 43 rotates, and the worm gear assembly 432 drives the rotating shaft 42 connected to it to rotate. The rotating shaft 42 transmits power to another rotating shaft 42 through the gear set 431, so that the two rotating shafts 42 rotate at the same speed and in opposite directions. When the two clamping structures 5 are pressed against the bandage 1, the worm gear assembly 432 stops rotating. At this time, the rotating shaft 42 connected to the worm gear stops rotating and the rotation angle is locked. This solves the problem of easy loosening of the clamping structure 5 and unstable extrusion pressure, and improves the clamping reliability of the clamping structure 5 for the ring-wound bandage 1.

[0054] Reference Figure 3 and Figure 10As shown: The switching mechanism 33 includes a switching plate 331 and a rotary drive assembly 332; the switching plate 331 is arranged parallel to one side of the mounting plate 31, and the cutting tool assembly 32 and the clamping mechanism are both mounted on the switching plate 331; the rotary drive assembly 332 is used to drive the switching plate 331 to rotate 90 degrees in the vertical plane.

[0055] If the bandage 1 on the steel coil is in the form of annular winding along the outer circumference of the steel coil, the rotary drive assembly 332 operates. The rotary drive assembly 332 can be a drive motor. The rotation of the output shaft of the drive motor directly drives the switching plate 331 to rotate in the vertical plane. According to the cutting requirements of the annular wound bandage 1, the drive motor drives the switching plate 331 to rotate 90 degrees. The cutting tool assembly 32 mounted on the switching plate 331 rotates synchronously, and its cutting direction is adjusted to be perpendicular to the length direction of the annular wound bandage 1. The length direction of the annular bandage 1 extends along the tangent of the circumference of the steel coil. The adjusted cutting direction is along the radial direction of the steel coil, ensuring that the cutting tool assembly 32 can cut the bandage 1 perpendicularly. When the bandage 1 on the steel coil is in the form of axial winding, the drive motor drives the switching plate 331 to rotate 90 degrees in the opposite direction, thereby meeting the cutting requirements of two common bandage 1 winding forms and improving the versatility and operational flexibility of the device.

[0056] Reference Figure 10 and Figure 11 As shown: The switching mechanism 33 also includes a fixing component 333 disposed on the mounting plate 31. The fixing component 333 is used to fix the switching plate 331 and prevent the switching plate 331 from rotating. The switching plate 331 has a plurality of fixing holes that mate with the fixing component 333.

[0057] Specifically, the fixing component 333 includes a plug rod 3331 and a first linear actuator 3332. The plug rod 3331 is slidably connected to the mounting plate 31, and the first linear actuator 3332 is used to drive the plug rod 3331 to mate with the fixing hole on the switching plate 331.

[0058] In the initial state, the insertion rod 3331 is inserted into the fixed insertion hole on the switching plate 331. At this time, the switching plate 331 is fixedly connected to the mounting plate 31. When it is necessary to rotate the switching plate 331, the first linear driver 3332 drives the insertion rod 3331 to move and separate from the switching plate 331. At this time, the switching plate 331 can rotate under the action of the rotation drive assembly 332. After the switching plate 331 rotates 90 degrees, the first linear driver 3332 drives the insertion rod 3331 to insert into the switching plate 331, so that the switching plate 331 cannot rotate. This avoids the problem of the switching plate 331 shifting due to external force during the cutting process, and keeps the cutting direction of the cutting tool assembly 32 perpendicular to the length direction of the bandage 1.

[0059] A cutting method, applied to an integrated cold-rolled steel strip uncoiling and cutting device, includes the following steps:

[0060] S1. The switching mechanism 33 adjusts the cutting direction of the cutting tool assembly 32 according to the way the bandage 1 is wrapped on the steel coil;

[0061] S2. If the bandage 1 is axially attached to the surface of the steel coil, the switching mechanism 33 adjusts the cutting direction of the cutting tool assembly 32 to be perpendicular to the axis of the steel coil. If the bandage 1 is annularly attached to the surface of the steel coil, the switching mechanism 33 adjusts the cutting direction of the cutting tool assembly 32 to be parallel to the axis of the steel coil.

[0062] S3. The axial movement mechanism 2 adjusts the position of the cutting mechanism 3 so that the cutting tool assembly 32 corresponds to the bandage 1;

[0063] S4. The cutting tool assembly 32 abuts against the bandage 1, and the two clamping structures 5 contact the two sides of the bandage 1 at the position to be cut.

[0064] S5. During the process of the cutting tool assembly 32 cutting the bandage 1, the two clamping structures 5 apply opposite tensions to the cutting position of the bandage 1 to help the bandage 1 break, and at the moment of breakage, the clamping structures 5 clamp the bandage 1.

[0065] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A cold-rolled steel strip decoiling and cutting integrated device, characterized in that, The cutting device comprises an axial moving mechanism (2) capable of moving along the axis of the steel roll, a cutting mechanism (3), and a clamping mechanism. The cutting mechanism (3) comprises a mounting plate (31), a cutting tool assembly (32) for cutting the bandage (1), and a switching mechanism (33). The mounting plate (31) is connected with the axial moving mechanism (2) to realize the movement of the mounting plate (31) along the axis of the steel roll. The cutting tool assembly (32) is arranged at the middle of one side of the mounting plate (31). The switching mechanism (33) is arranged at the other side of the mounting plate (31) and is connected with the cutting tool assembly (32). The switching mechanism (33) is used for changing the cutting direction of the cutting tool assembly (32). The clamping mechanism comprises a rotating mechanism (4) and two clamping structures (5). The rotating mechanism (4) is arranged on the mounting plate (31). The two clamping structures (5) are connected with the two ends of the rotating mechanism (4) and are respectively located on the two sides of the cutting direction of the cutting tool assembly (32). The rotating mechanism (4) is used for driving the two clamping structures (5) to adhere to the bandage (1). The clamping structure (5) is used for applying a pulling force to the bandage (1) in a direction away from the cutting opening.

2. The cold rolled steel strip decoiling and cutting integrated device according to claim 1, characterized in that, The clamping structure (5) comprises a clamping arm (51) connected with the rotating mechanism (4), two clamping jaw assemblies (52), and a second linear driver (53). The two clamping jaw assemblies (52) are arranged from near to far with respect to the cutting tool assembly (32) on the clamping arm (51). The clamping jaw assembly (52) close to the cutting tool assembly (32) is in sliding connection with the clamping arm (51). The second linear driver (53) is connected with the slidable clamping jaw assembly (52).

3. The cold rolled steel strip decoiling and cutting integrated device according to claim 2, characterized in that, The clamping jaw assembly (52) comprises a mounting seat (521), a clamping jaw (522), and an elastic connection assembly (523). The mounting seat (521) is connected with the clamping arm (51). The clamping jaw (522) is arranged on the side of the mounting seat (521) facing the bandage (1). The elastic connection assembly (523) is used for connecting the clamping jaw (522) and the mounting seat (521). The elastic connection assembly (523) is used for the clamping jaw (522) to provide a pushing force away from the mounting seat (521).

4. The cold rolled steel strip decoiling and cutting integrated device according to claim 3, characterized in that, The surface of the clamping jaw (522) in contact with the bandage (1) is provided with a hook (5221). The hook (5221) is used for providing a tangential pulling force along the circumference of the steel roll to the bandage (1). The pulling forces provided by the two clamping jaws (522) are in opposite directions.

5. The cold rolled steel strip decoiling and cutting integrated device according to claim 3, characterized in that, The elastic connection assembly (523) comprises a connecting plate (5231) and a plurality of guide rods (5232). The connecting plate (5231) is used for mounting the clamping jaw (522). The plurality of guide rods (5232) are parallel to each other. One end of the guide rod (5232) is connected with the connecting plate (5231). The other end of the guide rod (5232) penetrates through the mounting seat (521) and is in movable connection with the mounting seat (521). A spring (5233) is sleeved on the guide rod (5232) and is used for providing a pushing force away from the mounting seat (521) to the connecting plate (5231).

6. The cold rolled steel strip decoiling and cutting integrated device according to claim 2, characterized in that, The clamping structure (5) further comprises a guide assembly (54) connected with the slidable jaw assembly (52) for guiding the slidable jaw assembly (52) to be oriented and docked with the fixed jaw assembly (52).

7. The cold rolled steel strip decoiling and cutting integrated device according to claim 1, characterized in that, The rotating mechanism (4) comprises a base (41), two rotating shafts (42) and a self-locking rotating structure (43); The base (41) is connected with the switching mechanism (33); The two rotating shafts (42) are arranged in parallel on the base (41), and the two clamping structures (5) are connected with the two rotating shafts (42) respectively; The self-locking rotating structure (43) is used for driving the two rotating shafts (42) to rotate reversely synchronously and locking the rotating angles of the two rotating shafts (42).

8. The cold rolled steel strip decoiling and cutting integrated device according to claim 1, characterized in that, The switching mechanism (33) comprises a switching plate (331) and a rotary driving assembly (332); The switching plate (331) is arranged in parallel on one side of the mounting plate (31), and the cutting tool assembly (32) and the clamping mechanism are both mounted on the switching plate (331); The rotary driving assembly (332) is used for driving the switching plate (331) to rotate by 90 degrees in a vertical plane.

9. The cold rolled steel strip decoiling and cutting integrated device according to claim 8, characterized in that, The switching mechanism (33) further comprises a fixing assembly (333) arranged on the mounting plate (31), the fixing assembly (333) is used for fixing the switching plate (331) to prevent the switching plate (331) from rotating, and a plurality of fixing insertion holes are arranged on the switching plate (331) and are docked with the fixing assembly (333); 10. A cutting method applied to the cold-rolled steel strip unwinding and cutting integrated device according to any one of claims 1-9, characterized in that, The method comprises the following steps: S1, the switching mechanism (33) adjusts the cutting direction of the cutting tool assembly (32) according to the winding form of the bandage (1) on the steel coil; S2, if the bandage (1) is axially attached to the surface of the steel coil, the switching mechanism (33) adjusts the cutting direction of the cutting tool assembly (32) to be perpendicular to the axis direction of the steel coil, and if the bandage (1) is attached to the surface of the steel coil in a ring shape, the switching mechanism (33) adjusts the cutting direction of the cutting tool assembly (32) to be parallel to the axis direction of the steel coil; S3, the axial movement mechanism (2) adjusts the position of the cutting mechanism (3) so that the cutting tool assembly (32) corresponds to the bandage (1); S4, the cutting tool assembly (32) abuts against the bandage (1), and the two clamping structures (5) contact the two side parts of the bandage (1) to be cut; S5, in the process of cutting the bandage (1) by the cutting tool assembly (32), the two clamping structures (5) apply opposite pulling forces to the cutting position of the bandage (1) to assist the bandage (1) to break, and at the moment of breaking, the clamping structure (5) clamps the bandage (1).

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