A strip steel inspection station

Abstract

The application provides a strip steel inspection station and relates to the technical field of strip steel quality detection. The strip steel inspection station comprises an upper inspection table, a lower inspection table, an uncoiler, a coil conveying trolley, a lifting platform mechanism, a rotary table mechanism and a controller. The lifting platform mechanism is connected to the top of the coil conveying trolley. The rotary table mechanism is rotationally connected to the top of the lifting platform mechanism. The lifting platform mechanism drives the rotary table mechanism to move along the vertical direction. The top of the rotary table mechanism is used for carrying a strip steel coil and horizontally rotating the strip steel coil. The uncoiler is used for opening the strip steel coil and is located on the same side of the upper inspection table and the lower inspection table. The upper inspection table and the lower inspection table are used for respectively inspecting the inner surface and the outer surface of the strip steel and respectively receiving the part of the strip steel after the strip steel coil is opened. The coil conveying trolley moves to the position directly below the uncoiler along the conveying direction. The controller is in communication connection with the coil conveying trolley, the lifting platform mechanism and the rotary table mechanism respectively.

Description

Technical Field

[0001] This invention relates to the field of strip steel quality inspection technology, and more specifically, to a strip steel inspection station. Background Technology

[0002] The core function of the double-sided strip inspection station at the pickling and rolling mill exit is to conduct comprehensive and precise quality inspection and judgment on the upper and lower surfaces of the strip after rolling, ensuring that the surface quality of the finished strip meets the stringent requirements of downstream users (such as the automotive and home appliance industries). At the inspection station, both the upper and lower surfaces of the strip are manually visually inspected and ground to identify various surface defects, such as scratches, roll marks, pitting, inclusions, iron oxide scale, color difference, and edge cracks. Once a defect is found, its location along the length of the strip can be quickly determined, and combined with the unit's operating data, the process in which the defect occurred can be traced. This provides direct evidence for subsequent process adjustments and equipment maintenance, preventing the recurrence of similar defects.

[0003] Traditional double-sided strip inspection stations typically employ a double-layer inspection table structure, relying on guide rollers and belt conveyors to achieve strip flipping. This requires unfolding the strip a considerable distance to complete the flipping process, resulting in an excessively large overall layout and significantly extending the time required for strip inspection. In actual operation, strip deviation or jamming frequently occurs during the threading stage, causing threading difficulties and affecting the continuity and stability of the production line. Furthermore, strip often experiences operational problems during transportation, such as shaking, deviation, or speed fluctuations. This not only reduces the accuracy and reliability of surface inspection but also increases the workload of operators and the burden of equipment maintenance. Summary of the Invention

[0004] The problem this invention addresses is: how to improve the efficiency of strip steel surface quality inspection.

[0005] To address the aforementioned problems, this invention provides a strip steel inspection station, comprising an upper inspection platform, a lower inspection platform, an uncoiler, a coil transport trolley, a lifting platform mechanism, a rotary table mechanism, and a controller. The lifting platform mechanism is connected to the top of the coil transport trolley, and the rotary table mechanism is rotatably connected to the top of the lifting platform mechanism. The lifting platform mechanism vertically drives the rotary table mechanism to move. The top of the rotary table mechanism is used to support the strip steel coil and allow it to rotate horizontally. The uncoiler is used to open the strip steel coil and is located on the same side of the upper and lower inspection platforms. The upper and lower inspection platforms are used to inspect the inner and outer surfaces of the strip steel, respectively, and to receive portions of the strip steel after it has been opened. The coil transport trolley moves along the transport direction to directly below the uncoiler. The controller is communicatively connected to the coil transport trolley, the lifting platform mechanism, and the rotary table mechanism.

[0006] Optionally, the upper inspection table and the lower inspection table each include a magnetic belt guide plate, a pinch roller device, a centering device, a front-end sampling hydraulic shear, and a belt conveyor, which are sequentially distributed along the transport direction of the strip. The magnetic belt guide plate is used to magnetically attract the strip and transport it to the pinch roller device. The pinch roller device and the centering device pinch the strip to the belt conveyor, and the belt conveyor transports the strip to the inspection station. The front-end sampling hydraulic shear is used to cut the strip for sampling. The controller is communicatively connected to the magnetic belt guide plate, the pinch roller device, the front-end sampling hydraulic shear, and the belt conveyor.

[0007] Optionally, the strip inspection station further includes a strip lifting device. The belt conveyor includes a transport section and an inspection section distributed along the transport direction, with the transport section and the inspection section spaced apart. The strip lifting device includes a fixed end and a movable end that are communicatively connected to the controller. The movable end is located between the transport section and the inspection section, and the inspection section is located between the movable end and the fixed end. The fixed end and the movable end are used to clamp the strip and drive the strip to move vertically.

[0008] Optionally, both the fixed end and the movable end include a frame, a clamping hydraulic cylinder, an upper chuck, a lower chuck, an upper rotating shaft, and a lower rotating shaft. The upper rotating shaft and the lower rotating shaft extend along the width direction of the belt conveyor. The upper rotating shaft and the lower rotating shaft are located on the upper and lower sides of the transport plane, respectively, and are rotatably connected to the frame. The shaft ends of the upper rotating shaft and the lower rotating shaft are respectively provided with a first gear and a second gear, which mesh with each other. The upper chuck is connected to the upper rotating shaft, and the lower chuck is connected to the lower rotating shaft. The clamping hydraulic cylinder is connected to the frame and drives the upper chuck to rotate around the axis of the upper rotating shaft, so that the upper chuck and the lower chuck clamp and lift the strip steel. The controller is communicatively connected to the clamping hydraulic cylinder.

[0009] Optionally, the strip lifting device further includes two proximity switches. One proximity switch detects the position of the upper clamp at the fixed end, and the other proximity switch detects the position of the upper clamp at the movable end. Both proximity switches are communicatively connected to the controller, and when both proximity switches are triggered, the belt conveyor transports the strip.

[0010] Optionally, the strip lifting device further includes a tensioning cylinder that is communicatively connected to the controller. The tensioning cylinder is connected to the frame of the belt conveyor and is used to drive the frame at the movable end to move away from the inspection section.

[0011] Optionally, the strip inspection station further includes a grinding robot located in the width direction of the inspection section. The grinding robot is communicatively connected to the controller and is used to grind the strip.

[0012] Optionally, the lower chuck includes a polyurethane plate located on the transport plane and in sliding contact with the strip.

[0013] Optionally, both the upper chuck and the lower chuck include a rubber-lined roller clamping end, which is used to clamp the strip steel.

[0014] Optionally, the strip inspection station further includes a rear-end cutting hydraulic shear that is communicatively connected to the controller. The rear-end cutting hydraulic shear includes a clamping roller and a hydraulic shear. The movable end, the clamping roller, and the hydraulic shear are distributed sequentially along the transport direction, and the hydraulic shear is used to cut the strip after inspection.

[0015] Compared with related technologies, the strip inspection station of this invention communicates with the coil transport trolley, lifting platform mechanism, and rotary table mechanism through a controller, allowing users to easily ensure the orderly operation of each mechanism via the controller. At the strip inspection station, the uncoiler is located on the same side of the upper and lower inspection platforms, enabling a portion of the strip coil to be received by either the upper or lower inspection platform after it has been partially opened. This allows for separate inspection of the inner and outer surfaces of the strip at either the upper or lower inspection platform, eliminating the need to fully open the coil and ensuring independent quality inspection of the inner and outer surfaces. This guarantees orderly and efficient surface quality testing. The coiling trolley moves along the coiling direction to directly below the uncoiler, with the lifting platform mechanism connected to the top of the coiling trolley. The rotary table mechanism is rotatably connected to the top of the lifting platform mechanism. The lifting platform mechanism drives the rotary table mechanism to move vertically, and the lifting platform mechanism, rotary table mechanism, and coiling trolley move accordingly. The lifting platform mechanism realizes the height adjustment of the rotary table mechanism, and the top of the rotary table mechanism carries the strip coil and makes the strip coil rotate horizontally. This ensures that the initial position of the strip coil before being uncoiled by the uncoiler meets the inspection requirements of the inner and outer surfaces, thus allowing users to adapt and adjust the initial position of the strip coil according to the specific surface inspection, thereby improving the efficiency of strip surface inspection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the layout of the strip steel inspection station in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the inspection section, the movable end, and the fixed end in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the movable end and the fixed end in an embodiment of the present invention; Figure 4This is a schematic diagram showing the layout of the transport section, inspection section, moving end, and fixed end in an embodiment of the present invention; Figure 5 This is a schematic diagram of the upper clamp and lower connector in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 100 - Upper inspection table; 200 - Lower inspection table; 300 - Uncoiler; 400 - Coil transport trolley; 500 - Rotary table mechanism; 600 - Grinding robot; 700 - Rear-end cutting hydraulic shear; 710 - Pinch roller; 720 - Hydraulic shear; 1-Magnetic belt guide plate; 2-Pinching roller device; 3-Centering device; 4-Front-end sampling hydraulic shear; 5-Belt conveyor; 51-Transport section; 52-Inspection section; 6-Strip lifting device; 61-Fixed end; 62-Moving end; 63-Frame; 64-Clamping hydraulic cylinder; 65-Upper chuck; 66-Lower chuck; 661-Polyurethane board; 67-Upper rotating shaft; 68-Lower rotating shaft; 69-Tensioning cylinder; 610-Rubber-lined roller clamping end. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] In the attached figures, the X-axis represents left and right positions, with the positive direction of the X-axis representing the right side and the negative direction representing the left side; the Y-axis represents front and back positions, with the positive direction of the Y-axis representing the front and the negative direction representing the back; and the Z-axis represents up and down positions, with the positive direction of the Z-axis representing the top and the negative direction representing the bottom. It should be noted that the aforementioned representations of the X, Y, and Z axes are merely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0020] It should be noted that the terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein.

[0021] Combination Figure 1As shown, this embodiment of the invention provides a strip steel inspection station, including an upper inspection platform 100, a lower inspection platform 200, an uncoiler 300, a coil transport trolley 400, a lifting platform mechanism, a rotary table mechanism 500, and a controller. The lifting platform mechanism is connected to the top of the coil transport trolley 400, and the rotary table mechanism 500 is rotatably connected to the top of the lifting platform mechanism. The lifting platform mechanism drives the rotary table mechanism 500 to move vertically. The top of the rotary table mechanism 500 is used to carry the strip steel coil and rotate it horizontally. The uncoiler 300 is used to open the strip steel coil and is located on the same side of the upper inspection platform 100 and the lower inspection platform 200. The upper inspection platform 100 and the lower inspection platform 200 are used to inspect the inner and outer surfaces of the strip steel, respectively, and are used to receive a portion of the strip steel after the coil is opened. The coil transport trolley 400 moves along the transport direction to directly below the uncoiler 300. The controller is communicatively connected to the coil transport trolley 400, the lifting platform mechanism, and the rotary table mechanism 500.

[0022] Specifically, the strip coil is obtained by bending the strip. With the axis of the strip coil as a reference, the end face of the strip facing the axis is the inner surface, and the end face away from the axis is the outer surface. At the strip inspection station, the lower inspection platform 200 can be directly fixed to the ground, and a support frame made of welded steel beams is installed around the lower inspection platform 200. The upper inspection platform 100 is positioned directly above the lower inspection platform 200 via this support frame. Figure 1 As shown, the uncoiler 300 can be a conventional drum-type uncoiler, and the specific model can be selected according to actual needs. It is fixedly installed on the same side of the upper inspection table 100 and the lower inspection table 200. In this embodiment, the uncoiler 300 is located on the side of the upper inspection table 100 and the lower inspection table 200 facing the positive Y-axis. A guide rail embedded in the ground is provided below the drum of the uncoiler 300. The winding trolley 400 can be a railcar, and the guide rail extends laterally along the X-axis. The winding trolley 400 moves linearly along the guide rail. A lifting platform mechanism is installed on the top of the winding trolley 400. For example, the lifting platform mechanism can adopt a single-column or multi-column hydraulic cylinder system, which controls the lifting by the entry and exit of hydraulic oil, or it can adopt an electric screw mechanism, which achieves vertical lifting by driving the screw rotation by a motor. A rotary table mechanism 500 is mounted on top of the lifting platform mechanism. For example, the rotary table mechanism 500 can be composed of a turntable with a drive motor. The motor drives the turntable to rotate, thereby adjusting or positioning the strip steel coil placed on the turntable in the horizontal direction.

[0023] The strip inspection station in this embodiment is applicable to at least the following working conditions: To inspect the inner surface of a steel coil: The user issues a control command via the controller, and the coil transport trolley 400 moves away from the coiler 300. When it reaches the correct position, the steel coil is placed on the rotary table mechanism 500 by hoisting. Under the positioning of the rotary table mechanism 500, the axis of the steel coil is parallel to the moving direction of the coil transport trolley 400. Then, the coil transport trolley 400 moves below the uncoiler 300, and the lifting platform mechanism drives the rotary table mechanism 500 to move upward, so that the height of the steel coil meets the uncoiling operation of the uncoiler 300. After the uncoiler 300 picks up the steel coil, the lifting platform mechanism drives the rotary table mechanism 500 to reset, avoiding interference from the rotary table mechanism 500 with the uncoiling. During uncoiling, the steel coil is partially opened, and the steel is received by the upper inspection table 100. As uncoiling progresses, the steel can move to the inspection station of the upper inspection table 100, where the user can perform manual quality inspection of the inner surface of the steel.

[0024] To inspect the outer surface of a steel coil: The user issues a control command via the controller, and the coil transport trolley 400 moves away from the coiler 300. When it reaches its position, the steel coil is placed on the rotary table mechanism 500 by hoisting. The rotary table mechanism 500 drives the steel coil to rotate horizontally 180 degrees. Under the positioning of the rotary table mechanism 500, the axis of the steel coil is parallel to the moving direction of the coil transport trolley 400. Then, the coil transport trolley 400 moves to below the uncoiler 300, and the lifting platform... The rotating table mechanism 500 is driven to move upward so that the height of the strip coil meets the uncoiling operation of the uncoiler 300. After the uncoiler 300 picks up the strip coil, the lifting platform mechanism drives the rotating table mechanism 500 to reset, so as to avoid the rotating table mechanism 500 interfering with the uncoiling. During uncoiling, the strip coil is opened to a certain length and is received by the lower inspection table 200. As uncoiling proceeds, the strip can be moved to the inspection station of the lower inspection table 200, where the user can perform manual quality inspection on the outer surface of the strip.

[0025] For inspecting the inner and outer surfaces of the same steel coil: the inner surface can be inspected first by the upper inspection table 100. Then, the lifting platform mechanism drives the rotary table mechanism 500 to rise. After the rotary table mechanism 500 reloads the steel coil from the uncoiler 300, the lifting platform mechanism drives the rotary table mechanism 500 to fall. The rotary table mechanism 500 then drives the steel coil to rotate horizontally 180 degrees before performing the outer surface inspection process. It is understood that after the inner or outer surface quality inspection of the steel coil is completed, the steel coil can be transported out of the steel inspection station by the coil transport trolley 400 to meet the needs of downstream processing stages.

[0026] Therefore, in this embodiment, the controller is communicatively connected to the coil transport trolley 400, the lifting platform mechanism, and the rotary table mechanism 500, respectively. This allows the user to ensure the orderly operation of each mechanism through the controller. At the strip inspection station, the uncoiler 300 is positioned on the same side of the upper inspection table 100 and the lower inspection table 200. This allows a portion of the strip coil to be received by either the upper inspection table 100 or the lower inspection table 200 after it has been partially opened. This enables the inner and outer surfaces of the strip to be inspected separately on either the upper inspection table 100 or the lower inspection table 200. This eliminates the need to fully open the strip coil and ensures that the quality inspection of the inner and outer surfaces is independent, guaranteeing orderly and efficient surface quality testing. Furthermore, below the uncoiler 300, the transport trolley 400... The coil trolley 400 moves along the coiling direction to directly below the uncoiler 300, and the lifting platform mechanism is connected to the top of the coil trolley 400. The rotary table mechanism 500 is rotatably connected to the top of the lifting platform mechanism. The lifting platform mechanism drives the rotary table mechanism 500 to move vertically. The lifting platform mechanism, the rotary table mechanism 500, and the coil trolley 400 move together. The lifting platform mechanism realizes the height adjustment of the rotary table mechanism 500, and the top of the rotary table mechanism 500 carries the strip coil and makes the strip coil rotate horizontally. This ensures that the initial position of the strip coil before being uncoiled by the uncoiler 300 meets the inspection requirements of the inner and outer surfaces. This allows users to adapt and adjust the initial position of the strip coil according to the specific surface inspection, thereby improving the efficiency of strip surface inspection.

[0027] Optionally, combined Figure 1 and Figure 2 As shown, the upper inspection table 100 and the lower inspection table 200 respectively include a magnetic belt guide plate 1, a pinch roller device 2, a centering device 3, a front sampling hydraulic shear 4, and a belt conveyor 5, which are arranged sequentially along the transport direction of the strip steel. The magnetic belt guide plate 1 is used to magnetically attract the strip steel and transport it to the pinch roller device 2. The pinch roller device 2 and the centering device 3 pinch the strip steel to the belt conveyor 5, and the belt conveyor 5 transports the strip steel to the inspection station. The front sampling hydraulic shear 4 is used to cut the strip steel for sampling. The controller is communicatively connected to the magnetic belt guide plate 1, the pinch roller device 2, the front sampling hydraulic shear 4, and the belt conveyor 5.

[0028] Specifically, at the upper inspection table 100 and the lower inspection table 200, the transport direction of the strip steel refers to the direction in which the strip steel moves away from the coiler 300 after the coil is uncoiled, that is, the negative Y-axis direction. The magnetic belt guide plate 1 is particularly suitable for thinner strip steel. The magnetic belt guide plate 1 mainly includes a magnetic attraction structure arranged below the belt. The magnetic attraction structure magnetically attracts the strip steel, and the belt transports the strip steel to the pinch roller device 2. For example, an electromagnetic coil array can be embedded inside the belt. By energizing it, a controllable magnetic field is generated to achieve the attraction and release of the strip steel, and it works in conjunction with the belt drive system to achieve the transport of the strip steel. The pinch roller device 2, the centering device 3, the front-end sampling hydraulic shear 4, and the belt conveyor 5 are not specifically required; they can be selected according to actual needs.

[0029] Taking the upper inspection table 100 as an example: After the strip coil is uncoiled, a portion of the strip moves toward the magnetic belt guide plate 1. As the uncoiling process continues, the head of the strip moves to the magnetic belt guide plate 1. Under the control of the controller, the magnetic attraction structure of the magnetic belt guide plate 1 magnetically attracts the strip onto the belt. As the belt rotates, the magnetic belt guide plate 1 transports the strip to the pinch roller device 2. Then, the pinch roller device 2 pinches the strip. When the pinch roller device 2 pinches the strip, the magnetic attraction structure of the magnetic belt guide plate 1 can either hold the magnetically attracted strip or disconnect it. Under the clamping action of the pinch roller device 2, the strip steel passes through the centering device 3 and the front sampling hydraulic shear 4 to reach the belt conveyor 5, and is transported by the belt conveyor 5 to the inspection station. When performing internal surface quality inspection, the front sampling hydraulic shear 4 can cut the strip steel, leaving only the strip steel located at the inspection station. The remaining part is re-coiled by the uncoiler 300, so that the strip steel coil can be transported to the downstream process equipment in a timely manner after sampling, reducing waiting time.

[0030] Thus, the magnetic attraction of the magnetic belt guide plate 1 effectively suppresses the shaking and deviation of the strip steel before entering the inspection area, ensuring the smooth introduction of the strip steel. Subsequently, the pinch roller device 2 actively clamps and drives the strip steel, providing stable traction and preventing slippage, while the centering device 3 corrects the lateral position of the strip steel in real time, ensuring that the strip steel is always in the center of the inspection equipment, thereby significantly improving the coverage and accuracy of the inspection. Before the strip steel is accurately conveyed to the inspection station, the front-end sampling hydraulic shear 4 can cut the strip steel in a timely and accurate manner to obtain samples, avoiding excessive waiting time for strip steel coils due to surface quality inspection, and greatly improving work efficiency and continuity. Finally, the pre-treated strip steel is smoothly and continuously delivered to the inspection station by the belt conveyor 5, ensuring the smooth progress of the inspection process. By utilizing the communication connection between the controller and each component, closed-loop management of the entire process of strip steel from feeding to inspection station is ensured. This effectively solves the technical problems of stable and accurate conveying, effective processing and sampling of strip steel during inspection, and significantly improves the continuity, accuracy and overall efficiency of strip steel inspection.

[0031] Optionally, combined Figure 1 and Figure 4 As shown, the strip inspection station also includes a strip lifting device 6. The belt conveyor 5 includes a transport section 51 and an inspection section 52 distributed along the transport direction. The transport section 51 and the inspection section 52 are spaced apart. The strip lifting device 6 includes a fixed end 61 and a movable end 62 that are communicatively connected to the controller. The movable end 62 is located between the transport section 51 and the inspection section 52. The inspection section 52 is located between the movable end 62 and the fixed end 61. The fixed end 61 and the movable end 62 are used to clamp the strip and drive the strip to move vertically.

[0032] Specifically, along the transport direction of the strip steel, the fixed end 61 and the movable end 62 are located at the front and rear ends of the inspection section 52, respectively, with the fixed end 61 positioned between the transport section 51 and the inspection section 52. The inspection station is located in the inspection section 52. When the front-end sampling hydraulic shear 4 cuts the strip steel and performs surface quality inspection, the strip steel is in the inspection section 52, with both ends of the strip steel located at the fixed end 61 and the movable end 62, respectively. Then, under the control of the controller, the fixed end 61 and the movable end 62 clamp the two ends of the strip steel, fixing the strip steel to be inspected. The strip steel is then moved upwards and removed from the inspection section 52 to facilitate surface quality inspection by the user.

[0033] Thus, the fixed end 61 and movable end 62 of the strip lifting device 6 can stably clamp the strip and drive it to move vertically. This ensures that when the strip enters the inspection section 52 from the transport section 51, it is simultaneously supported and positioned at the inspection station by both ends or nearby areas of the fixed end 61 and movable end 62. This guarantees that the strip maintains a stable and precise posture throughout the inspection process, avoiding reduced inspection efficiency and quality due to strip swaying or positional deviation. Furthermore, the controller's communication connection with both the fixed end 61 and movable end 62 enables automated control of the strip lifting process. This allows users to adjust the vertical position of the strip in real time according to inspection needs, significantly improving the stability and accuracy of strip inspection and providing a solid foundation for subsequent surface defect identification and grinding operations.

[0034] Optionally, combined Figures 1 to 3 As shown, both the fixed end 61 and the movable end 62 include a frame 63, a clamping hydraulic cylinder 64, an upper chuck 65, a lower chuck 66, an upper rotating shaft 67, and a lower rotating shaft 68. The upper rotating shaft 67 and the lower rotating shaft 68 extend along the width direction of the belt conveyor 5. The upper rotating shaft 67 and the lower rotating shaft 68 are located on the upper and lower sides of the transport plane, respectively, and are rotatably connected to the frame 63. The shaft ends of the upper rotating shaft 67 and the lower rotating shaft 68 are respectively provided with a first gear and a second gear, which mesh with each other. The upper chuck 65 is connected to the upper rotating shaft 67, and the lower chuck 66 is connected to the lower rotating shaft 68. The clamping hydraulic cylinder 64 is connected to the frame 63 and drives the upper chuck 65 to rotate around the axis of the upper rotating shaft 67, so that the upper chuck 65 and the lower chuck 66 clamp and lift the strip steel. The controller is communicatively connected to the clamping hydraulic cylinder 64.

[0035] Specifically, referring to the movable end 62, the frame 63 is made by welding steel beams and two frames 63 are provided, with the two frames 63 located on both sides of the width direction of the transport section 52. The upper rotating shaft 67 is located above the transport section 52, and the lower rotating shaft 68 is located below the transport section 52. The upper rotating shaft 67 and the lower rotating shaft 68 extend along the direction of the strip steel and are distributed vertically. The two ends of the upper rotating shaft 67 and the two ends of the lower rotating shaft 68 are respectively rotatably mounted on the two side frames 63, and the shaft ends of the upper rotating shaft 67 and the lower rotating shaft 68 extend from the frame 63 and are respectively fitted with a meshing first gear and a second gear. When the upper rotating shaft 67 rotates around its axis, the lower rotating shaft 68 rotates around its axis through the meshing first gear and the second gear. The upper chuck 65 is mounted on the upper rotating shaft 67, and the lower chuck 66 is mounted on the lower rotating shaft 68. The axis of the upper chuck 65 coincides with the axis of the upper rotating shaft 67, and the axis of the lower chuck 66 coincides with the axis of the lower rotating shaft 68. Both the upper chuck 65 and the lower chuck 66 can be configured as block structures, such as... Figure 2 and Figure 5As shown, in the transport plane of inspection section 52, initially, the upper end plane of the lower chuck 66 is flush with the transport plane, serving as a moving plane for the strip, while the lower end plane of the upper chuck 65 is higher than the transport plane, facilitating the strip to pass between the upper chuck 65 and the lower chuck 66. A clamping hydraulic cylinder 64 is mounted on the frame 6. The drive end of the clamping hydraulic cylinder 64 is connected to the end of the upper chuck 65 furthest from the upper rotating shaft 67. When the drive end of the clamping hydraulic cylinder 64 extends, it drives the upper chuck 65 to rotate around its axis, thereby rotating the upper rotating shaft 67 and consequently rotating the lower rotating shaft 68.

[0036] When the movable end 62 needs to clamp the strip, the end of the strip is located on the upper plane of the lower chuck 66. Under the control of the controller, the drive end of the clamping hydraulic cylinder 64 extends, and the upper chuck 65 rotates counterclockwise. Through the transmission of the first gear and the second gear, the lower chuck 66 rotates clockwise. The rotation of the lower chuck 66 gradually raises the strip. When the upper chuck 65 and the lower chuck 66 are rotated to their positions, they clamp the strip. The clamping process of the fixed end 61 is similar and will not be described in detail here. The extension length of the drive end of the clamping hydraulic cylinder 64 can be controlled by a pressure sensor, for example, such as... Figure 2 As shown, pressure sensors can be installed on the ends of the upper chuck 65 and the lower chuck 66 facing the negative Y-axis. When the upper chuck 65 and the lower chuck 66 rotate to clamp the strip, the pressure sensor obtains the pressure value. When the pressure value reaches the pressure threshold, the controller controls the clamping hydraulic cylinder 64 to stop extending.

[0037] Thus, by extending along the width direction of the belt conveyor 5 and positioned on the upper and lower sides of the transport plane respectively, the upper shaft 67 and lower shaft 68 ensure comprehensive coverage and uniform support of the strip steel. The meshing of the first and second gears respectively located at the ends of the upper and lower shafts 67 and 68 achieves precise synchronization of the upper chuck 65 and lower chuck 66 during clamping and lifting actions, preventing strip steel displacement or damage caused by uneven force on both sides. The clamping hydraulic cylinder 64, connected to the frame 63, drives the upper chuck 65 to rotate around the axis of the upper shaft 67, generating a stable and controllable clamping force. This ensures that the upper chuck 65 and lower chuck 66 are tightly fitted against the strip steel surface, thereby achieving reliable clamping and smooth lifting of the strip steel. The communication connection between the controller and the clamping hydraulic cylinder 64 further ensures the automation and precise control of the clamping and lifting process. It can flexibly adjust the clamping state according to inspection requirements, ensuring that the strip remains stable during the lifting process and providing a stable working platform for subsequent inspection procedures. This not only simplifies the structure of the lifting device, but also, through the symmetrical arrangement of the upper and lower rotating shafts and gear linkage, enables the clamping force to be evenly distributed on the upper and lower sides of the strip, effectively reducing the impact of local stress concentration on the surface quality of the strip and significantly improving the efficiency and safety of strip inspection.

[0038] Optionally, the strip lifting device 6 also includes two proximity switches. One proximity switch detects the position of the upper clamp 65 at the fixed end 61, and the other proximity switch detects the position of the upper clamp 65 at the movable end 62. Both proximity switches are connected to the controller in communication, and when both proximity switches are triggered, the belt conveyor 5 transports the strip steel.

[0039] Specifically, the belt conveyor 5 is only permitted to transport steel strip when both the upper clamps 65 of the fixed end 61 and the movable end 62 are fully open. If either proximity switch is not triggered, the belt conveyor 5 remains stopped or paused.

[0040] Thus, by setting proximity switches at the fixed end 61 and the movable end 62 respectively, it is possible to provide real-time feedback on whether the upper clamp 65 is in the predetermined detection position, that is, to confirm whether the upper clamp 65 is in the correct position. The controller, by receiving signals from these two proximity switches, can determine whether the upper clamps 65 at the fixed end 61 and the movable end 62 are in the correct position. Only when both proximity switches are triggered simultaneously, confirming that both upper clamps 65 are in a synchronized and correct position, is the belt conveyor 5 allowed to start transporting the steel strip, significantly improving the automated operation efficiency and reliability of the steel strip inspection station.

[0041] Optionally, combined Figure 2 and Figure 4 As shown, the strip lifting device 6 also includes a tensioning cylinder 69 that is connected to the controller. The tensioning cylinder 69 is connected to the frame of the belt conveyor 5 and is used to drive the frame 63 of the movable end 62 to move away from the inspection section 52.

[0042] Specifically, tension cylinders 69 are connected one-to-one with frames 63. Tension cylinders 69 can be mounted on the frame of belt conveyor 5. The output end of tension cylinder 69 drives frame 63 to move away from inspection section 52. Specifically, when the strip is clamped and lifted by upper chuck 65 and lower chuck 66, under the control of the controller, tension cylinder 69 drives the corresponding frame 63 to move away from inspection section 52, that is, move in the negative Y-axis direction, thereby making the movable end 62 move away from the fixed end 61, thus achieving the stretching of the strip.

[0043] Thus, by communicating with the controller through the tensioning cylinder 69 and connecting it to the frame of the belt conveyor 5, and by using the frame 63 at the movable end 62 to move away from the inspection section 52, when the strip steel becomes slack or uneven in tension, the controller can instruct the tensioning cylinder 69 to move, driving the frame 63 at the movable end 62 away from the inspection section 52, thereby tightening the strip steel and eliminating slack. This ensures that the strip steel always remains taut and flat in the inspection section 52, providing a stable physical support plane for subsequent grinding operations or manual inspection, significantly improving the accuracy and stability of surface defect detection, and enhancing the equipment's adaptability to strip steel of different specifications, thereby ensuring the overall reliability of the strip steel inspection station and the accuracy of the inspection results.

[0044] Optionally, combined Figure 1 As shown, the strip inspection station also includes a grinding robot 600 located in the width direction of the inspection section 52. The grinding robot 600 is connected to the controller and is used to grind the strip.

[0045] Specifically, the grinding robot 600 is a conventional method, which can be a multi-jointed industrial robot with grinding tools such as grinding wheels, sanding belts, or brushes installed at its end. Its movement trajectory and grinding intensity are controlled by programming. For example, the strip steel is divided into multiple rectangular areas along its width, and the grinding robot 600 grinds multiple rectangular areas sequentially.

[0046] Thus, by positioning the grinding robot 600 in the width direction of the inspection section 52 and communicating with the controller, the grinding robot 600 can autonomously grind the surface of the strip steel under the control of the controller to improve the smoothness of the strip steel surface, so as to facilitate the detection of defects such as cracks on the surface of the strip steel.

[0047] Optionally, combined Figure 5 As shown, the lower chuck 66 includes a polyurethane plate 661, which is located on the transport plane and slides in contact with the strip.

[0048] Specifically, when the strip moves to the upper end of the lower chuck 66 on the transport plane of the inspection section 52, the polyurethane plate 661 can reduce the scratches on the strip surface caused by the lower chuck 66. The polyurethane plate 661 can be combined with the lower chuck 66 in various ways. For example, a groove can be designed on the surface of the lower chuck 66 to embed the polyurethane plate 661, and it can be mechanically fixed by a pressure plate or bolts.

[0049] Thus, by setting a polyurethane plate 661 on the lower chuck 66 and placing it in sliding contact with the strip on the transport plane, the inherent high elasticity, wear resistance, and low friction properties of the polyurethane plate 661 can provide a soft and cushioned contact surface for the strip. In this way, when the strip slides on the transport plane, the low coefficient of friction of the polyurethane plate 661 ensures that the strip can move smoothly and steadily, thereby maximizing the protection of the surface quality of the strip and avoiding secondary defects caused by mechanical contact.

[0050] Optionally, combined Figure 5 As shown, both the upper chuck 65 and the lower chuck 66 include a rubber-lined roller clamping end 610, which is used to clamp the strip steel.

[0051] Specifically, in the movable end 62, the rubber-lined roller clamping end 610 is installed at the ends of the upper clamp 65 and the lower clamp 66 facing the negative Y-axis, and in the fixed end 61, the rubber-lined roller clamping end 610 is installed at the ends of the upper clamp 65 and the lower clamp 66 facing the positive Y-axis.

[0052] Thus, both the upper chuck 65 and the lower chuck 66 include rubber-lined roller clamping ends 610, which are used to clamp the strip steel. Since the upper chuck 65 and the lower chuck 66 use rotational motion to clamp the strip steel, the rubber-lined roller clamping ends 610 utilize the elasticity and high coefficient of friction of the rubber material. When clamping the strip steel, the rubber layer can undergo appropriate deformation, thereby increasing the contact area with the strip steel surface and achieving flexible contact. This effectively buffers the impact of the clamping force on the strip steel surface and avoids scratches or indentations caused by direct contact between the metal chuck and the strip steel, thus protecting the surface quality of the strip steel. At the same time, the rubber-lined roller clamping ends 610, through the high friction of the rubber material, can firmly lock the strip steel, preventing longitudinal or lateral slippage during the lifting process and ensuring the positional stability of the strip steel in the lifting device 6. This not only ensures the stability of the strip steel during vertical movement but also further enhances the adaptability to strip steel of different thicknesses, ensuring the smooth progress of subsequent inspection processes.

[0053] Optionally, combined Figure 1 As shown, the strip inspection station also includes a rear-end cutting hydraulic shear 700 that is connected to the controller. The rear-end cutting hydraulic shear 700 includes a pinch roller 710 and a hydraulic shear 720. The movable end 62, the pinch roller 710 and the hydraulic shear 720 are distributed sequentially along the transport direction, and the hydraulic shear 720 is used to cut the strip after inspection.

[0054] Specifically, the pinch roller 710 and the hydraulic shear 720 can employ existing methods. For example, the hydraulic shear 720 can be designed as a shearing machine structure, completing the shearing through the coordinated action of the upper and lower blades; the pinch roller 710 can be a roller with a surface covered with a high-friction coefficient material (such as rubber or polyurethane) to enhance the gripping force on the strip. After the strip is ground, the fixed end 61 and the movable end 62 lower the strip onto the inspection section 52. The inspection section 52 transports the ground strip along the negative Y-axis. After passing through the pinch roller 720, the strip moves to the hydraulic shear 720. Under the control of the controller, the hydraulic shear 720 can cut the strip into multiple small segments to facilitate the user's transport of the inspected strip to the waste hopper for transfer.

[0055] Thus, the movable end 62, the pinch roller 710, and the hydraulic shear 720 are distributed sequentially along the transport direction. The hydraulic shear 720 is used to cut the strip steel after inspection, and the pinch roller 710 ensures that the strip steel passing through the movable end 62 can be accurately moved to the hydraulic shear 720. The hydraulic shear 720 can then cut the strip steel into multiple small segments to facilitate the user to transport the inspected strip steel to the waste hopper for transfer.

[0056] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A strip steel inspection station, characterized in that, The system includes an upper inspection table (100), a lower inspection table (200), an uncoiler (300), a coil transport trolley (400), a lifting platform mechanism, a rotary table mechanism (500), and a controller. The lifting platform mechanism is connected to the top of the coil transport trolley (400), and the rotary table mechanism (500) is rotatably connected to the top of the lifting platform mechanism. The lifting platform mechanism vertically drives the rotary table mechanism (500) to move. The top of the rotary table mechanism (500) is used to carry the strip coil and allow the strip coil to rotate horizontally. The uncoiler (300)... 00) is used to open the strip coil and is located on the same side of the upper inspection table (100) and the lower inspection table (200). The upper inspection table (100) and the lower inspection table (200) are used to inspect the inner and outer surfaces of the strip respectively, and are used to receive a portion of the strip after the strip coil is opened. The coil transport trolley (400) moves along the coil transport direction to directly below the uncoiler (300). The controller is communicatively connected to the coil transport trolley (400), the lifting platform mechanism and the rotary table mechanism (500).

2. The strip steel inspection station according to claim 1, characterized in that, The upper inspection table (100) and the lower inspection table (200) respectively include a magnetic belt guide plate (1), a pinch roller device (2), a centering device (3), a front sampling hydraulic shear (4) and a belt conveyor (5) arranged sequentially along the transport direction of the strip. The magnetic belt guide plate (1) is used to magnetically attract the strip and transport the strip to the pinch roller device (2). The pinch roller device (2) and the centering device (3) pinch the strip to the belt conveyor (5), and the belt conveyor (5) transports the strip to the inspection station. The front sampling hydraulic shear (4) is used to cut the strip for sampling. The controller is communicatively connected to the magnetic belt guide plate (1), the pinch roller device (2), the front sampling hydraulic shear (4) and the belt conveyor (5).

3. The strip steel inspection station according to claim 2, characterized in that, It also includes a strip lifting device (6). The belt conveyor (5) includes a transport section (51) and an inspection section (52) distributed along the transport direction. The transport section (51) and the inspection section (52) are spaced apart. The strip lifting device (6) includes a fixed end (61) and a movable end (62) that are communicatively connected to the controller. The movable end (62) is located between the transport section (51) and the inspection section (52). The inspection section (52) is located between the movable end (62) and the fixed end (61). The fixed end (61) and the movable end (62) are used to clamp the strip and drive the strip to move vertically.

4. The strip steel inspection station according to claim 3, characterized in that, Both the fixed end (61) and the movable end (62) include a frame (63), a clamping hydraulic cylinder (64), an upper chuck (65), a lower chuck (66), an upper rotating shaft (67), and a lower rotating shaft (68). The upper rotating shaft (67) and the lower rotating shaft (68) extend along the width direction of the belt conveyor (5). The upper rotating shaft (67) and the lower rotating shaft (68) are located on the upper and lower sides of the transport plane, respectively, and are rotatably connected to the frame (63). The shafts of the upper rotating shaft (67) and the lower rotating shaft (68) are... The first and second gears are respectively provided at the ends, and the first and second gears mesh. The upper chuck (65) is connected to the upper rotating shaft (67), and the lower chuck (66) is connected to the lower rotating shaft (68). The clamping hydraulic cylinder (64) is connected to the frame (63) and drives the upper chuck (65) to rotate around the axis of the upper rotating shaft (67) so that the upper chuck (65) and the lower chuck (66) clamp and lift the strip steel. The controller is communicatively connected to the clamping hydraulic cylinder (64).

5. The strip steel inspection station according to claim 4, characterized in that, The strip lifting device (6) also includes two proximity switches. One proximity switch detects the position of the upper clamp (65) at the fixed end (61), and the other proximity switch detects the position of the upper clamp (65) at the movable end (62). Both proximity switches are connected in communication with the controller, and when both proximity switches are triggered, the belt conveyor (5) transports the strip.

6. The strip steel inspection station according to claim 4, characterized in that, The strip lifting device (6) also includes a tensioning cylinder (69) that is communicatively connected to the controller. The tensioning cylinder (69) is connected to the frame of the belt conveyor (5) and is used to drive the frame (63) of the movable end (62) to move away from the inspection section (52).

7. The strip steel inspection station according to claim 6, characterized in that, It also includes a grinding robot (600) located in the width direction of the inspection section (52), the grinding robot (600) being communicatively connected to the controller and used for grinding the strip steel.

8. The strip steel inspection station according to claim 4, characterized in that, The lower chuck (66) includes a polyurethane plate (661) located on the transport plane and in sliding contact with the strip.

9. The strip steel inspection station according to claim 4, characterized in that, Both the upper chuck (65) and the lower chuck (66) include a rubber-lined roller clamping end (610), which is used to clamp the strip steel.

10. The strip steel inspection station according to claim 3, characterized in that, It also includes a rear-end cutting hydraulic shear (700) that is communicatively connected to the controller. The rear-end cutting hydraulic shear (700) includes a pinch roller (710) and a hydraulic shear (720). The movable end (62), the pinch roller (710) and the hydraulic shear (720) are distributed sequentially along the transport direction, and the hydraulic shear (720) is used to cut the strip steel after inspection.

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