Steel strip shearing device with surface defect detection function

Abstract

The invention discloses a steel belt shearing device with a surface defect detection function, and relates to the technical field of shearing, the steel belt shearing device with the surface defect detection function comprises a feeding mechanism, a pretreatment frame, a conveying mechanism, a workbench and a first conveying belt, the feeding mechanism is provided with a steel belt, and the pretreatment frame is provided with a second conveying belt; compared with an existing shearing device, the shearing device is provided with the detector, the first shearing assembly and the second shearing assembly, whether the surface of the steel belt has defects or not is detected through the detector, and the defective part on the steel belt can be sheared off at a time through the first shearing assembly and the second shearing assembly; the grinding assembly is further arranged, burrs at the shearing opening of the steel belt can be removed through the grinding assembly, and the situation that workers are punctured by the burrs at the shearing opening of the steel belt when the workers pick up the sheared steel belt in the follow-up process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of shearing, in particular to a steel strip shearing device with a surface defect detection function. Background Art

[0002] The steel strip shearing device is a device used to cut continuous steel strips into required lengths. It is commonly used in metal processing, steel manufacturing and other industries. In order to ensure the quality of the steel strips after cutting, especially the surface defects, some advanced steel strip shearing devices integrate surface defect detection functions.

[0003] The working principle of the current steel strip shearing device can be referred to patent documents CN118616789A and CN115846760A, but these devices will encounter the following problems during operation: First, due to the uncertainty of the position of the defective area on the steel strip, in order to ensure that the subsequent shearing length of the steel strip meets the standard requirements, the existing shearing device will often shear off the steel strip containing the defective area together with a large piece of steel strip with intact surface quality when processing these defective areas. Finally, in order to reduce costs, the staff often need to perform secondary shearing on these unqualified steel strips, thereby increasing the return rate. The difficulty of collecting; second, the current shearing device often encounters tool wear during operation, resulting in unqualified edges of the sheared steel strip, but the existing treatment measures usually involve stopping the machine to replace the tool, and it is impossible to stop the machine to replace the tool during non-working hours, which in turn affects work efficiency; third, the existing shearing device can basically only level and straighten the wavy steel strip, but during transportation and packaging, the side of the steel strip often wrinkles and bends. At this time, since the overall steel strip is flat, if the steel strip is forcibly leveled by stretching or rolling, there is a high probability that the steel strip will be deformed. Summary of the invention

[0004] The object of the present invention is to provide a steel strip shearing device with a surface defect detection function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steel strip shearing device with a surface defect detection function, the shearing device comprises a feeding mechanism, a pretreatment frame, a conveying mechanism, a workbench and a first conveyor belt, a steel strip is arranged on the feeding mechanism, when the present invention is working, one end of the steel strip passes through the pretreatment frame, the conveying mechanism and the workbench in sequence, two groups of detectors are arranged inside the pretreatment frame, the two groups of detectors are arranged on the upper and lower sides of the steel strip relatively, and the two groups of detectors are used to detect whether there are defects such as cracks, depressions, breakages, etc. on the surface of the steel strip (the detectors can use existing technologies, such as visual detectors, ultrasonic detectors, etc.), a first shearing table is arranged at one end of the workbench close to the conveying mechanism, a second shearing frame is arranged at one end of the workbench away from the conveying mechanism, the first conveyor belt is arranged below the second shearing table, a support frame is arranged above the first shearing table, a lifting seat is arranged inside the support frame, a second cylinder is arranged above the support frame, and the lifting seat is controlled to move up and down by the second cylinder, and a first shearing assembly and a second shearing assembly are arranged inside the lifting seat. Two shearing components, the first shearing component is movably installed at one end of the lifting seat close to the conveying mechanism, and the second shearing component is fixedly installed at one end of the lifting seat away from the conveying mechanism. When the quality of the steel belt is qualified, the first shearing component will work intermittently to cut the steel belt into products of a specific length. Finally, these qualified products will fall onto the first conveyor belt and enter the next process. When the two sets of detectors detect defects on the steel belt, the two sets of detectors will transmit a set of signals to the first shearing component and the second shearing component. Since the positions of the two sets of detectors are fixed, the speed of the conveying mechanism conveying the steel belt is constant, so the staff can know the time when the defective part on the steel belt arrives under the first shearing component and the second shearing component. When the head end of the defective part on the steel belt is located under the second shearing component and the tail end of the defective part on the steel belt is located under the first shearing component, the first shearing component and the second shearing component work synchronously, and the defective part on the steel belt is sheared off by the first shearing component and the second shearing component, thereby avoiding the subsequent secondary shearing of the steel belt that has not reached the specific length and has surface defects.

[0006] Furthermore, a screw assembly, a telescopic tube, a transmission groove and a third cylinder are provided inside the lifting seat, a piston and hydraulic oil are provided in the transmission groove, a working end of the third cylinder is connected to the piston, an adjusting motor is provided on the outside of the lifting seat, the working end of the adjusting motor is connected to the screw assembly, the first shearing assembly includes a first shearing frame, a first mounting plate, and a first tool, the first shearing frame is connected to the working end of the screw assembly, a first cavity is provided in the first shearing frame, the first tool is fixedly mounted at the lower end of the first mounting plate, the upper end of the first mounting plate is movably mounted in the first cavity by a first compression spring, one end of the telescopic tube is connected to the transmission groove through a first conduit and a first valve, and the other end of the telescopic tube is connected to the first cavity through a second conduit.

[0007] Furthermore, the second shearing assembly includes a second shearing frame, a second mounting plate and a second cutter, the second shearing frame is fixedly mounted in the lifting seat, a second cavity is arranged in the second shearing frame, the second cutter is fixedly mounted at the lower end of the second mounting plate, the upper end of the second mounting plate is movably mounted in the second cavity through a second compression spring, the second cavity is connected to the transmission groove through a third conduit and a second valve, when the surface quality of the steel strip is free of defects, the first valve is in an open state, and the second valve is in a closed state, at this time, the piston is driven to rise and fall by the third cylinder, so as to control the movement of the first cutter, and the steel strip is sheared by the first cutter. When there is a defect on the steel strip, and the head end of the defective part is located below the second tool, and the tail end of the defective part on the steel strip is located below the first tool, the first valve and the second valve will be in an open state, and when the third cylinder drives the piston to move, the first tool and the second tool will move synchronously, and the defective part on the steel strip will be sheared off by the first tool and the second tool. Finally, the present invention controls the movement of the first shearing frame inside the lifting seat through the adjusting motor and the screw assembly. Through the above technical solution, the present invention can adjust the positions of the first tool and the second tool in real time according to the width of the defective part on the steel strip, thereby improving the scope of use of the present invention.

[0008] Furthermore, a first pressure plate is provided below one end of the first shearing frame away from the second shearing frame, and a second pressure plate is provided below one end of the second shearing frame away from the first shearing frame, the distance between the first pressure plate and the first shearing platform is smaller than the distance between the first tool and the first shearing platform, and the distance between the second pressure plate and the second shearing platform is smaller than the distance between the second tool and the second shearing platform. When shearing the steel strip, the second cylinder will first control the lifting seat to descend until the first pressure plate and the second pressure plate are in contact with the steel strip. At this time, the first tool and the second tool are in a non-contact state with the steel strip. The steel strip is pressed by the first pressure plate and the second pressure plate to prevent the steel strip from shaking during shearing. When the steel strip is officially sheared, whether to open the second valve is selected according to the surface quality of the steel strip. Finally, the present invention can ensure that the second tool is not in a working state in most cases through the above technical scheme. Therefore, when the first tool is worn due to long-term work, the second tool is still in good condition. At this time, the staff can use the second tool as the main tool to shear the steel strip, thereby avoiding the trouble of stopping the machine to replace the shearing tool during working hours.

[0009] Furthermore, a second linear motor is provided inside the workbench, and a working end of the second linear motor is connected to the first shearing table, and grinding components are provided at the ends of the first shearing table and the second shearing table that are close to each other, and the grinding component includes a groove, a movable seat and an electromagnet, and the movable seat is movably installed in the groove through a vibration spring, and the electromagnet is fixedly installed at the side end of the groove, and a magnetic block is embedded in the end of the movable seat close to the electromagnet, and a shearing notch is provided at the upper end of the movable seat, and the upper end of the movable seat is made of abrasive material, and the first tool and the second tool are respectively aligned with the shearing notches provided at the upper ends of the two groups of movable seats. When the first tool is moved by adjusting the motor and the screw assembly, the second linear motor will synchronously drive the first shearing The table moves to ensure that the movable seat in the first shearing table is always aligned with the first tool. When the first tool is shearing the steel strip, the blade of the first tool falls into the shearing notch set at the upper end of the movable seat, so as to improve the service life of the first shearing table. Finally, after the shearing of the steel strip is completed, the first tool will leave the steel strip before the first pressure plate and the second pressure plate. At this time, the electromagnet in the first shearing table will intermittently generate a set of magnetic fields that repel the movable seat, so as to drive the movable seat in the first shearing table to move, and remove burrs at the shearing notch of the steel strip through the movable seat, so as to avoid the subsequent staff from being stabbed by the burrs at the shearing notch of the steel strip when picking up the sheared steel strip (when the second tool is working, the working principle of the grinding component inside the second shearing table is as described above, which will not be repeated here).

[0010] Furthermore, two groups of cleaning components are provided at one end of the pretreatment frame near the feeding mechanism, and the two groups of cleaning components are relatively arranged on the upper and lower sides of the steel strip, so as to avoid the influence of impurities during the subsequent surface defect detection of the steel strip (the technical effect achieved by the cleaning components is a conventional technical means in this field, and the specific structure is not described). Two groups of leveling components are provided at one end of the pretreatment frame near the conveying mechanism, and the two groups of leveling components are relatively arranged on the upper and lower sides of the steel strip, and each group of the leveling components is movably installed in the pretreatment frame through a group of first linear motors, and the two groups of leveling components are driven by the two groups of the first linear motors to move on the upper and lower sides of the steel strip, so as to perform fixed-point leveling on the concave or bent parts of the steel strip.

[0011] Furthermore, the leveling assembly includes a fixed frame and a correcting seat, the fixed frame is fixedly installed at the working end of the first linear motor, the correcting seat is arranged on the side of the fixed frame close to the steel belt, the fixed frame is provided with a first cylinder, the movement of the correcting seat is controlled by the first cylinder, and the correcting seat is provided with a coil. When the detector in the present invention detects that wrinkles and bends appear on the side of the steel belt or depressions appear in a certain area in the middle, the two groups of leveling assemblies are driven to move to corresponding positions by two groups of the first linear motors, and then the two groups of correcting seats are driven to extrude the steel belt by two groups of the first cylinders, and finally an alternating current is transmitted to the coil. The alternating magnetic field generated by the coil causes the area of ​​the steel belt to be leveled to heat up and soften, so that the thicker steel belt can be leveled with a smaller force, thereby preventing the wrinkled and bent parts on the steel belt from being crushed and deformed by the conveying rollers of the conveying device when the steel belt enters the conveying mechanism.

[0012] Furthermore, the shearing device also includes a second conveyor belt and a third conveyor belt, which are relatively arranged on both sides below the first conveyor belt, and the second conveyor belt, the third conveyor belt and the workbench are not on the same side of the first conveyor belt. When the first shearing component and the second shearing component cut off the defective parts on the steel belt, the staff can place the steel belt with defective parts on the third conveyor belt for subsequent recycling and processing, and place the steel belt that does not reach a specific length but has no surface defects on the second conveyor belt for further processing or direct use in other production. Compared with the current shearing device, the present invention can cut off the defective parts on the steel belt at one time, reducing the trouble of subsequent secondary shearing.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: compared with the current shearing device, the present invention is provided with a detector, a first shearing component and a second shearing component, and the detector is used to detect whether there are defects on the surface of the steel strip. When the head end of the defective part on the steel strip is located below the second shearing component, and the tail end of the defective part on the steel strip is located below the first shearing component, the defective part on the steel strip can be sheared off at one time by the first shearing component and the second shearing component, thereby avoiding subsequent secondary shearing of the steel strip that has not reached a specific length and has surface defects. In addition, when the surface of the steel strip is free of defects, the steel strip is not in a working state at all times, thereby ensuring that when the first cutter is worn due to long-term work, the second cutter is still in good condition. At this time, the staff can use the second cutter as the main cutter to cut the steel strip, thereby avoiding downtime for replacement during working time. In order to solve the trouble of shearing tools, the present invention is also provided with a grinding component, which can remove burrs at the cut edge of the steel strip, so as to prevent the subsequent staff from being stabbed by the burrs at the cut edge of the steel strip when picking up the cut steel strip. Finally, the present invention is also provided with two sets of leveling components, which are driven by two sets of first linear motors to move on the upper and lower sides of the steel strip, so as to perform fixed-point leveling on the concave or bent parts of the steel strip. Compared with the current leveling of the steel strip by stretching, the present invention uses the alternating magnetic field generated by the coil to make the area of ​​the steel strip to be leveled heat and soften, so as to level the thicker steel strip with a smaller force. At the same time, when the steel strip is overall flat, but a small area on the side is wrinkled and bent, the leveling component can prevent the wrinkled and bent parts on the steel strip from being crushed and deformed by the conveying roller of the conveying device when the steel strip enters the conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection between the workbench and the first conveyor belt of the present invention; Figure 3 It is a schematic diagram of the bottom structure of the lifting seat of the present invention; Figure 4 It is a schematic diagram of the internal structure of the lifting seat of the present invention; Figure 5 It is a schematic diagram of the workbench structure of the present invention; Figure 6 It is a schematic diagram of the connection between the working table and the first shearing table of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the middle A part; Figure 8 It is a schematic diagram of the internal structure of the pretreatment rack of the present invention; Fig. 9 For the present invention Figure 8Schematic diagram of the structure of the middle BB part; Fig.10 It is a schematic diagram of the structure of the leveling component of the present invention.

[0015] In the figure: 1. feeding mechanism; 2. steel belt; 3. pre-treatment frame; 31. cleaning assembly; 32. detector; 33. first linear motor; 34. leveling assembly; 341. fixing frame; 3411. first cylinder; 342. correction seat; 3421. coil; 4. conveying mechanism; 5. workbench; 51. first shearing table; 52. second shearing table; 53. second linear motor; 54. support frame; 55. second cylinder; 56. lifting seat; 561. screw assembly ; 5611, adjusting motor; 562, telescopic tube; 563, transmission groove; 5631, piston; 564, first shearing frame; 5641, first mounting plate; 5642, first tool; 565, second shearing frame; 5651, second mounting plate; 5652, second tool; 566, third cylinder; 57, grinding assembly; 571, groove; 572, movable seat; 573, electromagnet; 6, first conveyor belt; 7, second conveyor belt; 8, third conveyor belt. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example: Figure 1-Figure 8As shown, the present invention provides a technical solution, a steel strip shearing device with a surface defect detection function, the shearing device comprises a feeding mechanism 1, a pretreatment rack 3, a conveying mechanism 4, a workbench 5 and a first conveyor belt 6, a steel strip 2 is arranged on the feeding mechanism 1, when the present invention is working, one end of the steel strip 2 passes through the pretreatment rack 3, the conveying mechanism 4 and the workbench 5 in sequence, two groups of detectors 32 are arranged inside the pretreatment rack 3, the two groups of detectors 32 are relatively arranged on the upper and lower sides of the steel strip 2, and the two groups of detectors 32 are used to detect whether the surface of the steel strip 2 has defects such as cracks, dents, breakage, etc. (the detector 32 can use existing technology, such as visual detectors, ultrasonic detectors, etc.), and a first conveyor belt 6 is arranged above the workbench 5 at one end close to the conveying mechanism 4. A shearing table 51, a second shearing frame 565 is arranged at one end above the workbench 5 away from the conveying mechanism 4, a first conveyor belt 6 is arranged below the second shearing table 52, a support frame 54 is arranged above the first shearing table 51, a lifting seat 56 is arranged inside the support frame 54, a second cylinder 55 is arranged above the support frame 54, the lifting seat 56 is controlled to move up and down by the second cylinder 55, a first shearing assembly and a second shearing assembly are arranged inside the lifting seat 56, the first shearing assembly is movably installed at one end of the lifting seat 56 close to the conveying mechanism 4, and the second shearing assembly is fixedly installed at one end of the lifting seat 56 away from the conveying mechanism 4. When the quality of the steel strip 2 is qualified, the first shearing assembly will work intermittently to cut the steel strip 2 is cut into products of a specific length, and finally these qualified products will fall onto the first conveyor belt 6 to enter the next process. The shearing device also includes a second conveyor belt 7 and a third conveyor belt 8. The second conveyor belt 7 and the third conveyor belt 8 are relatively arranged on both sides below the first conveyor belt 6. The second conveyor belt 7, the third conveyor belt 8 and the workbench 5 are not on the same side of the first conveyor belt 6. When the two sets of detectors 32 detect defects on the steel belt 2, the two sets of detectors 32 will transmit a set of signals to the first shearing component and the second shearing component. Since the positions of the two sets of detectors 32 are fixed, the speed of the conveying mechanism 4 conveying the steel belt 2 is constant, so the staff can know that the defective parts of the steel belt 2 have reached the first shearing component and the second When the head end of the defective part on the steel belt 2 is located below the second shearing component, and the tail end of the defective part on the steel belt 2 is located below the first shearing component, the first shearing component and the second shearing component work synchronously, and the defective part on the steel belt 2 is cut off by the first shearing component and the second shearing component. At this time, the staff can place the steel belt 2 with the defective part on the third conveyor belt 8 for subsequent recycling and processing, and place the steel belt 2 that does not reach a specific length but has no surface defects on the second conveyor belt 7 for further processing or direct use in other production. Compared with the current shearing device, the present invention can cut away the defective part on the steel belt 2 at one time, reducing the trouble of subsequent secondary shearing.

[0018] like Figure 2-Figure 4As shown, the interior of the lifting seat 56 is provided with a screw assembly 561, a telescopic tube 562, a transmission groove 563 and a third cylinder 566, a piston 5631 and hydraulic oil are provided in the transmission groove 563, a working end of the third cylinder 566 is connected to the piston 5631, an adjusting motor 5611 is provided on the outer side of the lifting seat 56, and the working end of the adjusting motor 5611 is connected to the screw assembly 561, a first shearing assembly includes a first shearing frame 564, a first mounting plate 5641, and a first cutter 5642, the first shearing frame 564 is connected to the working end of the screw assembly 561, a first cavity is provided in the first shearing frame 564, the first cutter 5642 is fixedly mounted on the lower end of the first mounting plate 5641, and the upper end of the first mounting plate 5641 is movably mounted in the first cavity through a first compression spring, one end of the telescopic tube 562 is connected to the transmission groove 563 through a first conduit and a first valve, and the other end of the telescopic tube 562 is connected to the first cavity through a second conduit.

[0019] like Figure 2-Figure 4 As shown, the second shearing assembly includes a second shearing frame 565, a second mounting plate 5651 and a second cutter 5652. The second shearing frame 565 is fixedly mounted in the lifting seat 56. A second cavity is provided in the second shearing frame 565. The second cutter 5652 is fixedly mounted on the lower end of the second mounting plate 5651. The upper end of the second mounting plate 5651 is movably mounted in the second cavity via a second compression spring. The second cavity is connected to the transmission groove 563 via a third conduit and a second valve.

[0020] When the surface quality of the steel strip 2 is free of defects, the first valve is in an open state, and the second valve is in a closed state. At this time, the piston 5631 is driven to rise and fall by the third cylinder 566 to control the movement of the first cutter 5642, and the steel strip 2 is sheared by the first cutter 5642. When there is a defect on the steel strip 2, and the head end of the defective part is located below the second cutter 5652, and the tail end of the defective part on the steel strip 2 is located below the first cutter 5642, the first valve and the second valve are both in an open state. When the third cylinder 566 drives the piston 5631 to move, the first cutter 5642 and the second cutter 5652 will move synchronously, and the defective part on the steel strip 2 will be sheared off by the first cutter 5642 and the second cutter 5652. Finally, the present invention controls the first shearing frame 564 to move inside the lifting seat 56 by adjusting the motor 5611 and the screw assembly 561. Through the above technical solution, the present invention can adjust the positions of the first cutter 5642 and the second cutter 5652 in real time according to the width of the defective part on the steel strip 2, thereby improving the scope of use of the present invention.

[0021] like Figure 3As shown, a first pressing plate is arranged below one end of the first shearing frame 564 away from the second shearing frame 565, and a second pressing plate is arranged below one end of the second shearing frame 565 away from the first shearing frame 564. The distance between the first pressing plate and the first shearing platform 51 is smaller than the distance between the first tool 5642 and the first shearing platform 51, and the distance between the second pressing plate and the second shearing platform 52 is smaller than the distance between the second tool 5652 and the second shearing platform 52. When the present invention shears the steel strip 2, the second cylinder 55 first controls the lifting seat 56 to descend until the first pressing plate and the second pressing plate are in contact with the steel strip 2. At this time, the first tool 5642 and the second tool 5652 are in contact with the steel strip 2. In a non-contact state, the steel strip 2 is pressed by the first pressure plate and the second pressure plate to prevent the steel strip 2 from shaking during shearing. When the shearing of the steel strip 2 officially begins, whether to open the second valve is selected according to the surface quality of the steel strip 2. Finally, the present invention can ensure that the second tool 5652 is not in a working state in most cases through the above-mentioned technical scheme. Therefore, when the first tool 5642 is worn due to long-term work, the second tool 5652 is still in good condition. At this time, the staff can use the second tool 5652 as the main tool to shear the steel strip 2, thereby avoiding the trouble of stopping the machine to replace the shearing tool during working hours.

[0022] like Figure 5-Figure 7As shown, a second linear motor 53 is provided inside the workbench 5, and the working end of the second linear motor 53 is connected to the first shearing table 51. The first shearing table 51 and the second shearing table 52 are both provided with a grinding assembly 57 at one end close to each other. The grinding assembly 57 includes a groove 571, a movable seat 572 and an electromagnet 573. The movable seat 572 is movably installed in the groove 571 through a vibration spring, and the electromagnet 573 is fixedly installed at the side end of the groove 571. A magnetic block is inlaid at one end of the movable seat 572 close to the electromagnet 573. A shearing notch is provided at the upper end of the movable seat 572. The upper end of the movable seat 572 is made of abrasive material. The first tool 5642 and the second tool 5652 are respectively aligned with the shearing notches provided at the upper ends of the two groups of movable seats 572. When the first tool 5642 is moved by adjusting the motor 5611 and the screw assembly 561, the second linear motor 53 will synchronously drive the first shearing table 51 to move. The movable seat 572 in the first shearing table 51 is moved to ensure that the movable seat 572 in the first shearing table 51 is always aligned with the first tool 5642. When the first tool 5642 is shearing the steel strip 2, the blade of the first tool 5642 falls into the shearing notch set at the upper end of the movable seat 572. This increases the service life of the first shearing table 51. Finally, after the shearing of the steel strip 2 is completed, the first tool 5642 will leave the steel strip 2 before the first pressure plate and the second pressure plate. At this time, the electromagnet 573 in the first shearing table 51 will intermittently generate a set of magnetic fields that repel the movable seat 572, thereby driving the movable seat 572 in the first shearing table 51 to move, and remove the burrs at the shearing notch of the steel strip 2 through the movable seat 572, so as to avoid the subsequent staff from being stabbed by the burrs at the shearing notch of the steel strip 2 when picking up the sheared steel strip 2 (when the second tool 5652 is working, the working principle of the grinding component 57 inside the second shearing table 52 is as above, which will not be repeated here).

[0023] like Figure 8-Figure 9 As shown, two groups of cleaning components 31 are arranged at one end of the pretreatment frame 3 near the feeding mechanism 1, and the two groups of cleaning components 31 are relatively arranged on the upper and lower sides of the steel strip 2, so as to avoid the influence of impurities during the subsequent surface defect detection of the steel strip (the technical effect achieved by the cleaning components 31 is a conventional technical means in this field, and the specific structure is not described), and two groups of leveling components 34 are arranged at one end of the pretreatment frame 3 near the conveying mechanism 4, and the two groups of leveling components 34 are relatively arranged on the upper and lower sides of the steel strip 2, and each group of leveling components 34 is movably installed in the pretreatment frame 3 through a group of first linear motors 33, and the two groups of leveling components 34 are driven by the two groups of first linear motors 33 to move on the upper and lower sides of the steel strip 2, so as to perform fixed-point leveling on the concave or bent parts of the steel strip.

[0024] like Figure 8-Figure 10As shown, the leveling assembly 34 includes a fixed frame 341 and a correction seat 342. The fixed frame 341 is fixedly mounted on the working end of the first linear motor 33. The correction seat 342 is arranged on the side of the fixed frame 341 close to the steel belt 2. A first cylinder 3411 is arranged in the fixed frame 341. The movement of the correction seat 342 is controlled by the first cylinder 3411. A coil 3421 is arranged in the correction seat 342. When the detector 32 in the present invention detects that the side of the steel belt 2 is wrinkled or bent or a concave area in the middle is Two groups of first linear motors 33 drive two groups of leveling components 34 to move to corresponding positions, and then two groups of first cylinders 3411 drive two groups of correction seats 342 to extrude the steel strip 2, and finally an alternating current is transmitted to the coil 3421. The alternating magnetic field generated by the coil 3421 causes the area of ​​the steel strip 2 to be leveled to heat up and soften, so that a smaller force can be used to level the thicker steel strip, thereby preventing the wrinkled and bent parts of the steel strip 2 from being crushed and deformed by the conveying rollers of the conveying device when the steel strip 2 enters the conveying mechanism 4.

[0025] The working principle of the present invention is as follows: during operation, one end of the steel strip 2 is passed through the pretreatment rack 3, the conveying mechanism 4 and the workbench 5 in sequence, and the two sets of detectors 32 are used to detect whether there are defects such as cracks, depressions, and breakages on the surface of the steel strip 2. When the surface quality of the steel strip 2 is free of defects, the first valve is in an open state, and the second valve is in a closed state. The piston 5631 is driven up and down by the third cylinder 566 to control the movement of the first tool 5642, and the steel strip 2 is cut into products of a specific length by the first tool 5642. When the two sets of detectors 32 detect defects on the steel strip 2, the two sets of detectors 32 will transmit a set of signals to the third cylinder 566, the first valve, and the second valve. When the head end of the defective part on the steel strip 2 is located at When the tail end of the defective part on the steel belt 2 is located below the second tool 5652 and below the first tool 5642, the first tool 5642 and the second tool 5652 are controlled to move synchronously by the third cylinder 566, and the defective part on the steel belt 2 is sheared off by the first tool 5642 and the second tool 5652. At this time, the staff can place the steel belt 2 with the defective part on the third conveyor belt 8 for subsequent recycling and processing, and the steel belt 2 that does not reach a specific length but has no surface defects is placed on the second conveyor belt 7 for further processing or direct use in other production. Compared with the current shearing device, the present invention can shear off the defective part on the steel belt 2 at one time, reducing the trouble of subsequent secondary shearing.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. The embodiments should therefore be considered exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A steel strip shearing device with surface defect detection function, characterized in that: The shearing device comprises a feeding mechanism (1), a pretreatment rack (3), a conveying mechanism (4), a workbench (5) and a first conveyor belt (6); a steel belt (2) is arranged on the feeding mechanism (1); one end of the steel belt (2) passes through the pretreatment rack (3), the conveying mechanism (4) and the workbench (5) in sequence; two groups of detectors (32) are arranged inside the pretreatment rack (3); the two groups of detectors (32) are arranged on the upper and lower sides of the steel belt (2) in a relative manner; a first shearing platform (51) is arranged above the end of the workbench (5) close to the conveying mechanism (4); and a second shearing platform (56) is arranged above the end of the workbench (5) away from the conveying mechanism (4). 5), the first conveyor belt (6) is arranged below the second shearing platform (52), a support frame (54) is arranged above the first shearing platform (51), a lifting seat (56) is arranged inside the support frame (54), a second cylinder (55) is arranged above the support frame (54), the lifting seat (56) is controlled to move up and down by the second cylinder (55), a first shearing assembly and a second shearing assembly are arranged inside the lifting seat (56), the first shearing assembly is movably installed at one end of the lifting seat (56) close to the conveying mechanism (4), and the second shearing assembly is fixedly installed at one end of the lifting seat (56) away from the conveying mechanism (4).

2. The steel strip shearing device with surface defect detection function according to claim 1, characterized in that: The lifting seat (56) is provided with a lead screw assembly (561), a telescopic tube (562), a transmission groove (563) and a third cylinder (566) inside, a piston (5631) and hydraulic oil are provided inside the transmission groove (563), a working end of the third cylinder (566) is connected to the piston (5631), an adjusting motor (5611) is provided on the outside of the lifting seat (56), and the working end of the adjusting motor (5611) is connected to the lead screw assembly (561), and the first shearing assembly includes a first shearing frame (564), a first mounting plate (5641) , a first tool (5642), the first shearing frame (564) is connected to the working end of the screw assembly (561), a first cavity is arranged in the first shearing frame (564), the first tool (5642) is fixedly mounted on the lower end of the first mounting plate (5641), the upper end of the first mounting plate (5641) is movably mounted in the first cavity via a first compression spring, one end of the telescopic tube (562) is connected to the transmission groove (563) via a first conduit and a first valve, and the other end of the telescopic tube (562) is connected to the first cavity via a second conduit.

3. The steel strip shearing device with surface defect detection function according to claim 2, characterized in that: The second shearing assembly comprises a second shearing frame (565), a second mounting plate (5651) and a second cutter (5652); the second shearing frame (565) is fixedly mounted in the lifting seat (56); a second cavity is provided in the second shearing frame (565); the second cutter (5652) is fixedly mounted on the lower end of the second mounting plate (5651); the upper end of the second mounting plate (5651) is movably mounted in the second cavity via a second compression spring; the second cavity is connected to the transmission groove (563) via a third conduit and a second valve.

4. The steel strip shearing device with surface defect detection function according to claim 3 is characterized in that: A first pressing plate is arranged below one end of the first shearing frame (564) away from the second shearing frame (565), and a second pressing plate is arranged below one end of the second shearing frame (565) away from the first shearing frame (564). The distance between the first pressing plate and the first shearing table (51) is smaller than the distance between the first tool (5642) and the first shearing table (51), and the distance between the second pressing plate and the second shearing table (52) is smaller than the distance between the second tool (5652) and the second shearing table (52).

5. The steel strip shearing device with surface defect detection function according to claim 3, characterized in that: A second linear motor (53) is arranged inside the workbench (5), and a working end of the second linear motor (53) is connected to the first shearing table (51). A grinding assembly (57) is arranged at the ends of the first shearing table (51) and the second shearing table (52) that are close to each other. The grinding assembly (57) comprises a groove (571), a movable seat (572) and an electromagnet (573). The movable seat (572) is movably installed in the groove (571) through a vibration spring. The electromagnet (573) is fixedly installed at the side end of the groove (571). A magnetic block is embedded at one end of the movable seat (572) close to the electromagnet (573). A shearing notch is arranged at the upper end of the movable seat (572). The upper end of the movable seat (572) is made of abrasive material. The first tool (5642) and the second tool (5652) are respectively aligned with the shearing notches arranged at the upper ends of the two groups of movable seats (572).

6. A steel strip shearing device with surface defect detection function according to any one of claims 1 to 5, characterized in that: Two groups of cleaning components (31) are arranged at one end of the pre-treatment frame (3) near the feeding mechanism (1), and the two groups of cleaning components (31) are arranged on the upper and lower sides of the steel belt (2) in a relative manner. Two groups of leveling components (34) are arranged at one end of the pre-treatment frame (3) near the conveying mechanism (4), and the two groups of leveling components (34) are arranged on the upper and lower sides of the steel belt (2) in a relative manner. Each group of leveling components (34) is movably installed in the pre-treatment frame (3) via a group of first linear motors (33).

7. The steel strip shearing device with surface defect detection function according to claim 1, characterized in that: The leveling assembly (34) comprises a fixed frame (341) and a correction seat (342); the fixed frame (341) is fixedly mounted on the working end of the first linear motor (33); the correction seat (342) is arranged on a side of the fixed frame (341) close to the steel belt (2); a first cylinder (3411) is arranged in the fixed frame (341); the movement of the correction seat (342) is controlled by the first cylinder (3411); and a coil (3421) is arranged in the correction seat (342).

8. The steel strip shearing device with surface defect detection function according to claim 1, characterized in that: The shearing device further comprises a second conveyor belt (7) and a third conveyor belt (8), wherein the second conveyor belt (7) and the third conveyor belt (8) are arranged opposite to each other on two sides below the first conveyor belt (6), and the second conveyor belt (7), the third conveyor belt (8) and the workbench (5) are not on the same side of the first conveyor belt (6).

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