Flying shear for metal sheet and method of using the same

Abstract

The present invention discloses a flying shear for metal plates and a method for using the same, relating to the technical field of flying shears, comprising an unwinding mechanism for feeding metal coils, a shearing mechanism for intelligently adjusting the shearing force according to the hardness of the metal coils being provided on one side of the unwinding mechanism, a transmission mechanism for transporting the sheared plates being provided on one side of the shearing mechanism, before shearing the metal coils of different hardnesses, the metal coils of different hardnesses are polished by controlling the downward movement of the sanding disc, a camera judges the hardness of the metal coil by photographing the color of sparks and the number of forks generated on the surface of the metal coil, and automatically adjusts the appropriate shearing force to shear the metal coil, this detection method saves costs, does not require the use of expensive spectral equipment for detection, effectively prevents the occurrence of excessive or insufficient shearing force, and achieves the effect of automatically matching the shearing force according to the hardness of the metal coil.

Description

Technical Field

[0001] The present invention relates to the technical field of flying shears, in particular to a flying shear for metal plates and a method of using the same. Background Art

[0002] The working principle of the flying shear is to cut the rolled piece through the relative movement of the shear blades during the movement of the rolled piece. This includes the crank rocker flying shear. The crank rocker flying shear is a shear in which the upper tool holder is driven by a crank, and the upper tool holder drives the lower tool holder to swing through a hinge. The shear blades are installed on the connecting rod and the rocker. When the upper and lower shear blades meet, a shearing action is generated. This type of flying shear is often used for high-speed fixed-length shearing of plates and strips.

[0003] In order to achieve standardized production of products and facilitate subsequent processing, packaging and transportation, metal coils need to be cut into specific lengths. Since the carbon content of each metal coil is different, its hardness is also different. For metal coils with high hardness, the strong interaction force between its atoms makes this relative sliding difficult. Therefore, to overcome this strong binding force between atoms, it is necessary to increase the speed of the motor to apply a greater shear force.

[0004] It takes experienced craftsmen to adjust the shear force suitable for the hardness, because the craftsmen have a deep understanding of the performance, operation methods and limitations of shearing equipment and tools. They know how to adjust the shear force according to the characteristics of the equipment and the hardness of the metal coil. However, new workers lack practical experience and do not have a deep understanding of material properties, equipment operation and process parameters. It is difficult for them to accurately judge and adjust the shear force. When the shear force is less than the shear strength of the metal coil, the shearing cannot be completed smoothly, and the shearing will not be completed continuously, resulting in deformation of the material but inability to separate, affecting the production schedule and processing efficiency. When the shear force is too large, the metal coil will undergo excessive plastic deformation during the shearing process, resulting in an uneven and rough shear surface, and even defects such as burrs and cracks, which will reduce product quality.

[0005] Therefore, it is necessary to design a flying shear for metal sheets that can intelligently match the shearing force according to the hardness of the metal coil. Summary of the Invention

[0006] The object of the present invention is to provide a flying shear for metal plates and a method of using the same to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a flying shear for metal plates, comprising a unwinding mechanism for feeding metal coils, a shearing mechanism for intelligently adjusting the shearing force according to the hardness of the metal coils being provided on one side of the unwinding mechanism, and a transmission mechanism for transporting the sheared plates being provided on one side of the shearing mechanism.

[0008] According to the above technical solution, the shearing mechanism includes a chassis, a controller is provided inside the chassis, side panels are fixedly connected on both sides of the upper side of the chassis, a first support plate and a second support plate are fixedly connected on the upper and lower sides of one side of each side plate, an upper shearing assembly and a lower shearing assembly are provided between each of the first support plate and the second support plate, one side of one of the side plates is fixedly connected to a camera, a preheating assembly for heating the metal coil is provided on the lower side of the camera, and a hardness detection assembly for detecting the hardness of the metal coil is provided on the upper side of the preheating assembly.

[0009] According to the above technical solution, the upper shear assembly includes a first motor fixedly connected to one side of the side plate, the output end of the first motor passes through the side plate and is fixedly connected to the first rotating column, the other end of the first rotating column is fixedly connected to the first turntable, and the outer sides of the first turntable are respectively slidably connected to the first upper arc ring and the first lower arc ring, the first upper arc ring and the first lower arc ring are fixedly connected, one end of the first lower arc ring is fixedly connected to the first guide slide plate and the other end is fixedly connected to the first fixed plate.

[0010] According to the above technical solution, an upper cutter is fixedly connected to one side of the first fixed plate, a first sliding column is slidably connected to the inside of the first guide slide plate, the first sliding column is slidably connected to the first support plate, and a first snap ring, a second snap ring and a third snap ring are respectively provided on the outer side of the first sliding column, the first snap ring is arranged above the first support plate, and the second snap ring and the third snap ring are respectively arranged above and below the first guide slide plate.

[0011] According to the above technical solution, the lower shear assembly includes a second motor fixedly connected to one side of the side plate, the output end of the second motor passes through the side plate and is fixedly connected to the second rotating column, the other end of the second rotating column is fixedly connected to the second turntable, and the outer sides of the second turntable are respectively slidably connected to the second upper arc ring and the second lower arc ring, the second upper arc ring and the second lower arc ring are fixedly connected, one end of the second upper arc ring is fixedly connected to the second guide slide plate and the other end is fixedly connected to the second fixed plate.

[0012] According to the above technical solution, a lower cutting knife is fixedly connected to one side of the second fixed plate, a discharge plate is fixedly connected to the other end of the second fixed plate, a second sliding column is slidably connected to the inside of the second guide slide plate, the second sliding column is slidably connected to the second support plate, and a fourth clamping ring, a fifth clamping ring and a sixth clamping ring are respectively provided on the outer side of the second sliding column, the fourth clamping ring is arranged below the second support plate, and the fifth clamping ring and the sixth clamping ring are respectively arranged above and below the second guide slide plate.

[0013] According to the above technical solution, the hardness detection component includes a positioning plate fixedly connected between two first support plates, the upper side of the positioning plate is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder passes through the positioning plate and is fixedly connected to a slider, the lower side of the positioning plate is fixedly connected to a third guide slide, the third guide slide is slidably connected to the slider, the lower side of the slider is fixedly connected to a third motor, and the output end of the third motor is fixedly connected to a sand disc.

[0014] According to the above technical solution, the preheating assembly includes a feeding plate fixedly connected between two side plates, a feeding trough is provided inside the feeding plate, an avoidance groove is provided at the inlet end of the feeding trough, and sliding grooves are respectively provided on the upper and lower sides of the feeding trough, and a spring is fixedly connected inside each of the sliding grooves, and a pressure plate is fixedly connected to the other end of the spring, and the pressure plate is slidably connected to the sliding groove, a touch button is provided on one side of the spring and the touch button is fixedly connected to the sliding groove, a heating plate is provided on one side of each of the pressure plates and the heating plate is fixedly connected to the feeding plate, and two scrapers are respectively fixedly connected to the outlet end of the feeding trough.

[0015] A method for using a flying shear for metal sheets, according to the above-mentioned flying shear for metal sheets, comprises the following steps:

[0016] S1: The unwinding mechanism transports the metal coil to the inside of the shearing mechanism.

[0017] S2: The hardness detection component grinds the upper surface of the metal coil. The camera determines the hardness of the metal coil by capturing the color and number of sparks generated on the upper surface of the metal coil, and automatically adjusts the appropriate shear force to shear the metal coil.

[0018] S3: The preheating component preheats the metal coils of different hardness to different degrees, and detects whether there is an oxide layer on the surface of the metal coil before the preheating process. After the oxide layer is detected, the area of ​​the oxide layer is heated and then the oxide layer is removed.

[0019] S4: The upper shearing assembly and the lower shearing assembly shear the passing metal coils and send the sheared metal plates to the transmission end of the transmission mechanism, which transports the sheared metal plates.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0021] 1. Before shearing metal coils of different hardness, the sanding disc is controlled to move downward to grind the metal coils of different hardness. The camera determines the hardness of the metal coil by capturing the color and number of sparks generated on the upper surface of the metal coil, and automatically adjusts the appropriate shear force to shear the metal coil. This detection method saves costs and eliminates the need for expensive spectral equipment. It effectively prevents the occurrence of excessive or insufficient shear force and achieves the effect of automatically matching the shear force according to the hardness of the metal coil.

[0022] 2. Before shearing the metal coil, the temperature is adjusted in real time to preheat the metal coil according to the hardness of the metal coil detected, so that the yield strength and shear strength of the metal coil are reduced, and the shear force is also reduced, which reduces the wear of the tool. When the metal coil with rust passes through and presses against the two pressure plates, the touch button is pressed and a signal is sent to the control box. The judgment module determines that the metal coil area between the two pressure plates contains rust. The control box controls the heating plate to perform concentrated high-temperature heating on the rusted area. After heating, the rust becomes dry and loose, which is easier to clean, achieving a high rust cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a flying shear for metal plates according to the present invention;

[0025] Figure 2 Schematic diagram of the structure of the shearing mechanism in the present invention;

[0026] Figure 3 Schematic diagram of the internal structure of the shearing mechanism of the present invention;

[0027] Figure 4 Schematic diagram of the structure of the upper shear assembly and the lower shear assembly in the present invention;

[0028] Figure 5 Schematic diagram of the structure of the hardness detection component of the present invention;

[0029] Figure 6 Schematic diagram of the structure of the preheating component in the present invention;

[0030] Figure 7 Schematic diagram of the internal structure of the preheating component in the present invention;

[0031] In the figure: 1. Unwinding mechanism;

[0032] 2. Shearing mechanism; 21. Chassis; 22. Side plate; 23. First support plate; 24. Second support plate; 25. Upper shear assembly; 251. First motor; 252. First guide plate; 253. First sliding post; 254. First rotating post; 255. First upper arc ring; 256. First turntable; 257. First lower arc ring; 258. First fixing plate; 259. Upper cutter; 26. Lower shear assembly; 261. Second motor; 262. Second guide plate; 263. Second sliding post; 264. Second rotating post; 265. Second Lower arc ring; 266, second turntable; 267, second upper arc ring; 268, second fixed plate; 269, lower cutter; 27, camera; 28, hardness detection assembly; 281, hydraulic cylinder; 282, positioning plate; 283, third guide slide; 284, slider; 285, third motor; 286, sanding disc; 29, preheating assembly; 291, feed plate; 292, avoidance groove; 293, sliding groove; 294, pressure plate; 295, spring; 296, touch button; 297, feed chute; 298, heating plate; 299, scraper;

[0033] 3. Transmission mechanism; 4. Discharge plate. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0035] See also Figure 1-7 The present invention provides a technical solution: a flying shear for metal plates, comprising an unwinding mechanism 1 for feeding metal coils, a shearing mechanism 2 for intelligently adjusting the shearing force according to the hardness of the metal coils being provided on one side of the unwinding mechanism 1, and a transmission mechanism 3 for transporting the sheared plates being provided on one side of the shearing mechanism 2.

[0036] See also Figure 2 and Figure 3 The shearing mechanism 2 includes a chassis 21, a controller is provided inside the chassis 21, side panels 22 are fixedly connected to the upper and lower sides of each side panel 22, a first support panel 23 and a second support panel 24 are fixedly connected to the upper and lower sides of each side panel 22, an upper shearing assembly 25 and a lower shearing assembly 26 are provided between each first support panel 23 and the second support panel 24, a camera 27 is fixedly connected to one side of one side panel 22, a preheating assembly 29 for heating the metal coil is provided on the lower side of the camera 27, and a hardness detection assembly 28 for detecting the hardness of the metal coil is provided on the upper side of the preheating assembly 29.

[0037] Supplementary explanation based on the above structure is as follows: the camera 27 is used to capture the spark image generated by the friction between the rotating sand disc 286 and the upper surface of the metal coil, and convert it into an electrical signal and send it to the control box. The control box is equipped with a database and a judgment module, and the database is equipped with identification photos of sparks of different colors and different numbers of forks.

[0038] See also Figure 4 The upper shear assembly 25 includes a first motor 251 fixedly connected to one side of the side plate 22. The output end of the first motor 251 passes through the side plate 22 and is fixedly connected to a first rotating column 254. The other end of the first rotating column 254 is fixedly connected to a first turntable 256. The outer side of the first turntable 256 is slidably connected to a first upper arc ring 255 and a first lower arc ring 257. The first upper arc ring 255 and the first lower arc ring 257 are fixedly connected. One end of the first lower arc ring 257 is fixedly connected to a first guide The other end of the slide 252 is fixedly connected to a first fixed plate 258, one side of the first fixed plate 258 is fixedly connected to an upper cutter 259, the interior of the first guide slide 252 is slidably connected to a first sliding column 253, the first sliding column 253 is slidably connected to the first support plate 23, and the outer sides of the first sliding column 253 are respectively provided with a first snap ring, a second snap ring and a third snap ring, the first snap ring is arranged above the first support plate 23, and the second snap ring and the third snap ring are respectively arranged above and below the first guide slide 252.

[0039] Supplementary explanation based on the above structure is as follows: the rotation of the output end of the first motor 251 is used to control the rotation of the first turntable 256. Since the first rotating column 254 is eccentrically connected to the first turntable 256, when the first turntable 256 rotates counterclockwise, it will drive the first upper arc ring 255 and the first lower arc ring 257 to move, thereby driving the first sliding column 253 to slide inside the first guide slide 252, and at the same time, the first guide slide 252 also slides up and down inside the first support plate 23, thereby driving the upper cutter 259 to move, making it close to or away from the lower cutter 269.

[0040] The lower shear assembly 26 includes a second motor 261 fixedly connected to one side of the side plate 22, the output end of the second motor 261 passes through the side plate 22 and is fixedly connected to the second rotating column 264, the other end of the second rotating column 264 is fixedly connected to the second turntable 266, the outer side of the second turntable 266 is respectively slidably connected to the second upper arc ring 267 and the second lower arc ring 265, the second upper arc ring 267 and the second lower arc ring 265 are fixedly connected, one end of the second upper arc ring 267 is fixedly connected to the second guide slide 262 and the other end is fixed It is connected to a second fixed plate 268, one side of the second fixed plate 268 is fixedly connected to a lower cutting knife 269, the other end of the second fixed plate 268 is fixedly connected to a discharge plate 4, the interior of the second guide slide 262 is slidingly connected to a second sliding column 263, the second sliding column 263 is slidingly connected to the second support plate 24, and the outer sides of the second sliding column 263 are respectively provided with a fourth snap ring, a fifth snap ring and a sixth snap ring, the fourth snap ring is arranged below the second support plate 24, and the fifth snap ring and the sixth snap ring are respectively arranged above and below the second guide slide 262.

[0041] Supplementary explanation based on the above structure is as follows: the movement mode of the lower shear assembly 26 is the same as the movement mode of the upper shear assembly 25, and will not be repeated here.

[0042] When the first turntable 256 rotates one hundred and eighty degrees along the first rotating column 254 as the axis, and the second turntable 266 rotates one hundred and eighty degrees along the second rotating column 264 as the axis, the first sliding column 253 just slides to the center of the first guide slide 252 and drops to the lowest end, and the second sliding column 263 just slides to the center of the second guide slide 262 and rises to the highest end. At this time, the upper cutter 259 and the lower cutter 269 contact each other to shear the metal coil.

[0043] When the first turntable 256 rotates one hundred and eighty degrees again along the first rotating column 254 as the axis, and the second turntable 266 rotates one hundred and eighty degrees again along the second rotating column 264 as the axis, the first sliding column 253 just slides to the center of the first guide slide 252 and rises to the highest end, and the second sliding column 263 just slides to the center of the second guide slide 262 and drops to the lowest end. At this time, the upper cutter 259 and the lower cutter 269 move away from each other, ready to cut the next area.

[0044] See also Figure 5 The hardness detection component 28 includes a positioning plate 282 fixedly connected between the two first support plates 23, a hydraulic cylinder 281 is fixedly connected to the upper side of the positioning plate 282, the output end of the hydraulic cylinder 281 passes through the positioning plate 282 and is fixedly connected to a slider 284, the lower side of the positioning plate 282 is fixedly connected to a third guide slide 283, the third guide slide 283 is slidably connected to the slider 284, the lower side of the slider 284 is fixedly connected to a third motor 285, and the output end of the third motor 285 is fixedly connected to a sand disc 286.

[0045] Supplementary explanation based on the above structure is as follows: the extension and retraction of the output end of the hydraulic cylinder 281 is used to drive the slider 284 to move up and down, thereby driving the third motor 285 to move up and down, and then driving the sanding disc 286 to move up and down. The rotation of the output end of the third motor 285 is used to drive the sanding disc 286 to rotate, thereby grinding the upper surface of the metal coil. The hardness of each metal coil only needs to be tested once, and the hardness needs to be retested when a new metal coil is replaced.

[0046] After the camera 27 captures the spark image generated by the friction between the rotating sand disc 286 and the upper surface of the metal coil, it converts the captured image into an electrical signal and sends it to the judgment module. The judgment module compares it with the identification photos of sparks of different colors and different numbers of forks in the internal database, pre-identifies the color and number of forks of the spark, and distinguishes the carbon content of the metal coil into high carbon steel, medium carbon steel and low carbon steel based on the obtained spark image generated by the friction between the upper surface of the metal coil.

[0047] When the hardness of the metal coil needs to be tested, the output end of the hydraulic cylinder 281 extends to control the rotating sand disc 286 to move downward, grinding the upper surface of the metal coil and generating sparks.

[0048] When the camera 27 captures sparks that are bright yellow and have only a few forks, the judgment module determines that the metal coil is low-carbon steel with low hardness and does not require excessive shearing force. Therefore, the first motor 251 and the second motor 261 are turned on at low power, driving the upper cutter 259 and the lower cutter 269 to move slowly to shear the metal coil.

[0049] When the camera 27 captures sparks that are yellow-white in color and have obvious bifurcations, the judgment module determines that the metal coil is medium carbon steel with medium hardness and requires normal shearing force. Therefore, the first motor 251 and the second motor 261 are turned on at normal power, driving the upper cutter 259 and the lower cutter 269 to move at a constant speed to shear the metal coil.

[0050] When the camera 27 captures sparks that are yellow-white in color with many forks and layers, the judgment module determines that the metal coil is high-carbon steel with too high a hardness and requires excessive shearing force. Therefore, the first motor 251 and the second motor 261 are turned on at high power, driving the upper cutter 259 and the lower cutter 269 to move at high speed to shear the metal coil.

[0051] Before shearing metal coils of different hardness, the sanding disc 286 is controlled to move downward to grind the metal coils of different hardness. The camera 27 judges the hardness of the metal coil by photographing the color and number of sparks generated on the upper surface of the metal coil, and automatically adjusts the appropriate shear force to shear the metal coil. This detection method saves costs and does not require the use of expensive spectral equipment for detection. It effectively prevents the occurrence of excessive or insufficient shear force and achieves the effect of automatically matching the shear force according to the hardness of the metal coil.

[0052] In the second embodiment, since some metal coils have a high internal carbon content, their hardness at room temperature may, to a certain extent, bring a greater load to the shearing equipment, increasing the wear of the tool. Moreover, when the rust on the metal coil is scraped off by the tool, the adhesion between the rust and the metal substrate is relatively strong, and the tool needs greater force to scrape it off. Some firmly attached rust may be difficult to be completely scraped off, and the rust removal efficiency is relatively low. The effect is acceptable for some thin rust or loosely attached rust layers, but it is not ideal for thick and hard rust. Rust that is not scraped off cleanly will affect the heating uniformity of subsequent heat treatment. Therefore, the following structure is designed to solve the above technical problems.

[0053] See also Figure 6 and Figure 7 The preheating assembly 29 includes a feed plate 291 fixedly connected between the two side plates 22, a feed trough 297 is provided inside the feed plate 291, and an avoidance groove 292 is provided at the inlet end of the feed trough 297, and sliding grooves 293 are respectively provided on the upper and lower sides of the feed trough 297, and a spring 295 is fixedly connected to the inside of each sliding groove 293, and the other end of the spring 295 is fixedly connected to a pressure plate 294, and the pressure plate 294 is slidably connected to the sliding groove 293, and a touch button 296 is provided on one side of the spring 295 and the touch button 296 is fixedly connected to the sliding groove 293, a heating plate 298 is provided on one side of each pressure plate 294 and the heating plate 298 is fixedly connected to the feed plate 291, and two scrapers 299 are respectively fixedly connected to the outlet end of the feed trough 297.

[0054] The supplementary explanation based on the above structure is as follows: the spring force of the spring 295 is greater than the gravity when the metal coil passes by. When the spring 295 is fully popped out, the distance between the two pressure plates 294 is the thickness of the metal coil. Therefore, when the rust-free metal coil passes through, the pressure plate 294 will not be pressed down due to gravity. When the pressure plate 294 is pressed down, it will press the touch button 296, thereby sending a signal to the control box. The heating plate 298 is a heating plate 298 with an electromagnetic heating tube inside. The two heating plates 298 are used to heat the metal coil passing in the middle. The distance between the two scrapers 299 is the thickness of the metal coil. When the metal coil passes by, the scraping ends of the two scrapers 299 respectively stick to the upper and lower surfaces of the metal coil, and the rust on the upper and lower sides of the metal coil will be scraped off.

[0055] When the rust-free metal coil passes through the feeding trough 297, the two heating plates 298 are used to heat the metal coil passing through the middle. The heating temperature changes in real time with the hardness of the metal coil. When the hardness of the metal coil is too high, the heating temperature of the heating plate 298 increases. When the hardness of the metal coil is too low, the heating temperature of the heating plate 298 decreases, thereby heating the metal coils of different hardness at appropriate temperatures. Heating will reduce the yield strength and shear strength of the metal coil, and the shear force will also decrease, thereby reducing the wear of the tool.

[0056] When the metal coil with rust passes through the feeding trough 297, since one end of the pressure plate 294 is a round surface, when the metal coil with rust passes between the two pressure plates 294, it will cause squeezing of the pressure plate 294. When the pressure plate 294 is squeezed, the spring 295 is compressed, the touch button 296 is pressed and a signal is sent to the control box. The judgment module determines that the metal coil area between the two pressure plates 294 contains rust. The control box controls the heating plate 298 to increase the heating temperature until the spring 295 is completely popped out and the touch button 296 is no longer pressed, indicating that the rust has been heated. After the unwinding mechanism 1 feeds the material next time, the heating plate 298 returns to the previous temperature value. The heated rust becomes dry and loose, and is easier to clean. When the metal coil passes between the two scrapers 299, the rust on the upper and lower sides of the metal coil is scraped off by the scraper 299.

[0057] Before shearing the metal coil, the metal coil is preheated by adjusting the appropriate temperature in real time according to the hardness of the metal coil detected, so that the yield strength and shear strength of the metal coil are reduced, and the shear force is also reduced, thereby reducing the wear of the tool. When the metal coil with rust passes through and presses against the two pressure plates 294, the touch button 296 is pressed and a signal is sent to the control box. The judgment module determines that the metal coil area between the two pressure plates 294 contains rust. The control box controls the heating plate 298 to perform concentrated high-temperature heating on the area containing rust. After heating, the rust becomes dry and loose, and is easier to clean, thereby achieving a high rust cleaning efficiency.

[0058] Embodiment 3, a method for using a flying shear for metal sheets, according to the above-mentioned flying shear for metal sheets, comprises the following steps:

[0059] S1: The unwinding mechanism 1 transports the metal coil to the inside of the shearing mechanism 2.

[0060] S2: The hardness detection component 28 grinds the upper surface of the metal coil, and the camera 27 judges the hardness of the metal coil by photographing the color and number of sparks generated on the upper surface of the metal coil, and automatically adjusts the appropriate shearing force to shear the metal coil.

[0061] The more specific steps of S2 are, S21: after the camera 27 captures the spark image generated by the friction between the rotating sand disc 286 and the upper surface of the metal coil, it will convert the captured image into an electrical signal and send it to the judgment module. The judgment module will compare it with the identification photos of sparks of different colors and different numbers of forks in the internal database, pre-identify the color and number of forks of the spark, and based on the obtained spark image generated by the friction between the upper surface of the metal coil, distinguish the carbon content of the metal coil into high carbon steel, medium carbon steel and low carbon steel.

[0062] S211: When the hardness of the metal coil needs to be tested, the output end of the hydraulic cylinder 281 extends to control the rotating sand disc 286 to move downward, grinding the upper surface of the metal coil and generating sparks.

[0063] S212: When the camera 27 captures sparks that are bright yellow and have only a few forks, the judgment module determines that the metal coil is low-carbon steel with low hardness and does not require excessive shearing force. Therefore, the first motor 251 and the second motor 261 are turned on at low power, driving the upper cutter 259 and the lower cutter 269 to move slowly to shear the metal coil.

[0064] S213: When the camera 27 captures sparks that are yellow-white in color and have obvious bifurcations, the judgment module determines that the metal coil is medium carbon steel with medium hardness and requires normal shearing force. Therefore, the first motor 251 and the second motor 261 are turned on at normal power, driving the upper cutter 259 and the lower cutter 269 to move at a constant speed to shear the metal coil.

[0065] S214: When the camera 27 captures sparks that are yellow-white in color with many forks and layers, the judgment module determines that the metal coil is high-carbon steel with too high a hardness and requires excessive shearing force. Therefore, the first motor 251 and the second motor 261 are turned on at high power, driving the upper cutter 259 and the lower cutter 269 to move at high speed to shear the metal coil.

[0066] S3: The preheating assembly 29 preheats the metal coils of different hardness to different degrees, and detects whether there is an oxide layer on the surface of the metal coil before the preheating process. After the oxide layer is detected, the area of ​​the oxide layer is heated and then the oxide layer is removed.

[0067] The more specific steps of S3 are, S31: when the rust-free metal coil passes through the feeding trough 297, the two heating plates 298 are used to heat the metal coil passing through the middle, and the heating temperature changes in real time with the hardness of the metal coil. When the hardness of the metal coil is too high, the heating temperature of the heating plate 298 increases, and when the hardness of the metal coil is too low, the heating temperature of the heating plate 298 decreases, thereby heating the metal coils of different hardness at appropriate temperatures. Heating will reduce the yield strength and shear strength of the metal coil, and the shear force will also decrease, reducing the wear of the tool.

[0068] S32: When the metal coil with rust passes through the feeding trough 297, since one end of the pressure plate 294 is a round surface, when the metal coil with rust passes between the two pressure plates 294, the pressure plate 294 will be squeezed. When the pressure plate 294 is squeezed, the spring 295 is compressed, the touch button 296 is pressed and a signal is sent to the control box. The judgment module determines that the metal coil area between the two pressure plates 294 contains rust. The control box controls the heating plate 298 to increase the heating temperature until the spring 295 is completely popped out and the touch button 296 is no longer pressed, indicating that the rust has been heated. After the unwinding mechanism 1 feeds the material next time, the heating plate 298 returns to the previous temperature value. The heated rust becomes dry and loose, and is easier to clean. When the metal coil passes between the two scrapers 299, the rust on the upper and lower sides of the metal coil is scraped off by the scraper 299.

[0069] S4: The upper shearing assembly 25 and the lower shearing assembly 26 shear the passing metal coils and send the sheared metal plates to the transmission end of the transmission mechanism 3, and the transmission mechanism 3 transports the sheared metal plates.

[0070] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0071] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A flying shear for metal sheets, comprising a reeling mechanism (1) for feeding a metal coil, characterized in that: A shearing mechanism (2) for intelligently adjusting the shearing force according to the hardness of the metal coil is provided on one side of the unwinding mechanism (1); a transport mechanism (3) for transporting the sheared plate is provided on one side of the shearing mechanism (2); The shearing mechanism (2) comprises a chassis (21), a controller is provided inside the chassis (21), side plates (22) are fixedly connected to the upper sides of the chassis (21), a first support plate (23) and a second support plate (24) are fixedly connected to the upper and lower sides of one side of each side plate (22), an upper shearing assembly (25) and a lower shearing assembly (26) are provided between each first support plate (23) and the second support plate (24), a camera (27) is fixedly connected to one side of one of the side plates (22), a preheating assembly (29) for heating the metal coil is provided on the lower side of the camera (27), and a hardness detection assembly (28) for detecting the hardness of the metal coil is provided on the upper side of the preheating assembly (29); The hardness detection assembly (28) includes a positioning plate (282) fixedly connected between the two first support plates (23); a hydraulic cylinder (281) is fixedly connected to the upper side of the positioning plate (282); an output end of the hydraulic cylinder (281) passes through the positioning plate (282) and is fixedly connected to a slider (284); a third guide slide (283) is fixedly connected to the lower side of the positioning plate (282); the third guide slide (283) is slidably connected to the slider (284); a third motor (285) is fixedly connected to the lower side of the slider (284); and a sanding disc (286) is fixedly connected to the output end of the third motor (285); The output end of the hydraulic cylinder (281) extends to control the sanding disc (286) to move downward, thereby grinding the metal coils of different hardnesses. The camera (27) judges the hardness of the metal coil by photographing the color and number of forks of the sparks generated on the surface of the metal coil. The preheating assembly (29) includes a feed plate (291) fixedly connected between two side plates (22), a feed trough (297) is provided inside the feed plate (291), an avoidance groove (292) is provided at the inlet end of the feed trough (297), and sliding grooves (293) are provided on the upper and lower sides of the feed trough (297), each of the sliding grooves (293) is fixedly connected to a spring (295), and the other end of the spring (295) is fixedly connected to a pressing plate (294); The pressing plate (294) is slidably connected to the sliding groove (293); a touch button (296) is provided on one side of the spring (295), and the touch button (296) is fixedly connected to the sliding groove (293); a heating plate (298) is provided on one side of each pressing plate (294), and the heating plate (298) is fixedly connected to the feeding plate (291); and two scrapers (299) are fixedly connected to the outlet end of the feeding trough (297); According to the hardness of the metal coil detected, the temperature is adjusted in real time to preheat the metal coil, and when the metal coil with rust passes and presses against the two pressure plates (294), the touch button (296) is pressed and it is determined that the metal coil area between the two pressure plates (294) contains rust, and then the heating plate (298) is controlled to centrally heat the area of ​​the metal coil containing rust.

2. A flying shear for metal plates according to claim 1, characterized in that: The upper shear assembly (25) comprises a first motor (251) fixedly connected to one side of the side plate (22); an output end of the first motor (251) passes through the side plate (22) and is fixedly connected to a first rotating column (254); the other end of the first rotating column (254) is fixedly connected to a first rotating disk (256); a first upper circular arc ring (255) and a first lower circular arc ring (257) are slidably connected to the outer side of the first rotating disk (256); the first upper circular arc ring (255) and the first lower circular arc ring (257) are fixedly connected.

3. A flying shear for metal plates according to claim 2, characterized in that: One end of the first lower circular arc ring (257) is fixedly connected to the first guide slide (252) and the other end is fixedly connected to the first fixed plate (258); one side of the first fixed plate (258) is fixedly connected to the upper cutter (259); and the interior of the first guide slide (252) is slidably connected to the first sliding column (253).

4. A flying shear for metal plates according to claim 3, characterized in that: The first sliding column (253) is slidably connected to the first support plate (23), and a first snap ring, a second snap ring, and a third snap ring are respectively provided on the outer side of the first sliding column (253), the first snap ring is provided above the first support plate (23), and the second snap ring and the third snap ring are respectively provided above and below the first guide slide plate (252).

5. A flying shear for metal plates according to claim 4, characterized in that: The lower shear assembly (26) comprises a second motor (261) fixedly connected to one side of the side plate (22); an output end of the second motor (261) passes through the side plate (22) and is fixedly connected to a second rotating column (264); and the other end of the second rotating column (264) is fixedly connected to a second rotating disk (266).

6. A flying shear for metal plates according to claim 5, characterized in that: The outer side of the second rotating disk (266) is slidably connected to a second upper circular arc ring (267) and a second lower circular arc ring (265), the second upper circular arc ring (267) and the second lower circular arc ring (265) are fixedly connected, and one end of the second upper circular arc ring (267) is fixedly connected to the second guide slide plate (262) and the other end is fixedly connected to the second fixing plate (268).

7. A flying shear for metal plates according to claim 6, characterized in that: A lower cutter (269) is fixedly connected to one side of the second fixed plate (268), and a discharge plate (4) is fixedly connected to the other end of the second fixed plate (268). The second guide slide plate (262) is slidably connected to a second sliding column (263). The second sliding column (263) is slidably connected to the second support plate (24). The outer sides of the second sliding column (263) are respectively provided with a fourth snap ring, a fifth snap ring and a sixth snap ring. The fourth snap ring is provided below the second support plate (24), and the fifth snap ring and the sixth snap ring are provided above and below the second guide slide plate (262), respectively.

8. A method for using a flying shear for metal sheets, using the flying shear for metal sheets according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: The unwinding mechanism (1) transports the metal coil to the interior of the shearing mechanism (2); S2: The hardness detection component (28) grinds the upper surface of the metal coil, and the camera (27) judges the hardness of the metal coil by photographing the color and number of sparks generated on the upper surface of the metal coil, and automatically adjusts the appropriate shearing force to shear the metal coil; S3: The preheating component (29) preheats the metal coils of different hardness to different degrees, and detects whether there is an oxide layer on the surface of the metal coil before the preheating process, and after the oxide layer is detected, heats the area of ​​the oxide layer and then removes the oxide layer; S4: The upper shearing assembly (25) and the lower shearing assembly (26) shear the metal coil passing through, and send the sheared metal plate to the transmission end of the transmission mechanism (3), and the transmission mechanism (3) transports the sheared metal plate.

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