A thickness detection metering device for a roll cutting sample

Abstract

The present application relates to the technical field of thickness detection, and more particularly to a thickness detection metering device for roll-cut samples, comprising a detection table, an upper laser thickness detector and a lower laser thickness detector, wherein the upper laser thickness detector and the lower laser thickness detector are respectively arranged beside two vertical paths in an S-shaped path composed of an upper roller, a lower roller, a top roller and a bottom roller, and are synchronously moved upward and laterally expanded for detection, and then the upper laser thickness detector is moved downward and reset, and the roll-cut sample generates an undetected area when the upper laser thickness detector is moved downward and reset, and then the undetected area is synchronously moved into a second vertical conveying area and is relayed by the lower laser thickness detector, and the lower laser thickness detector covers the undetected area flowing through during the resetting of the upper laser thickness detector, and the time sequence connection and spatial complementation are repeatedly and alternately realized, the sample is continuously conveyed without stopping, two groups of data are spliced into a full-width and full-time thickness matrix, and the defects of uneven thickness on the left and right of the sample are accurately identified.

Description

Technical Field

[0001] This invention relates to the field of thickness measurement technology, and in particular to a thickness measurement device for roll-cut samples. Background Technology

[0002] The roll-cut sample thickness detection and measurement equipment is used to perform online thickness detection on metal sheets and thin-walled profiles awaiting processing before roll cutting. It is a key piece of equipment in the roll-cutting production line for pre-controlling incoming material quality and adjusting process parameters. The equipment mainly consists of a support frame, a conveying module, a detection module, and a control module. The support frame is an integral rigid frame used to support various functional components. The conveying module includes multiple sets of rollers and a transmission mechanism to continuously drive the sample through the detection area. The detection module uses a laser thickness detector to measure the sample thickness through an up-and-down beam method. The control module receives and analyzes the detection data. In use, the sample to be roll-cut is sent into the detection area by the conveying module. The laser thickness detector continuously detects the thickness of the sample, and the control module collects data in real time and determines whether the thickness is abnormal, thereby identifying incoming material thickness deviations in advance and providing a basis for adjusting subsequent roll-cutting process parameters, preventing unqualified incoming materials from entering the roll-cutting process.

[0003] Existing laser thickness inspection equipment is mostly installed on the material conveyor line before roll cutting. The inspection position is constant and can only inspect the thickness at fixed points on the sample. Moreover, the roll cutting process has high requirements for the uniformity of the thickness of the incoming material. Since the uneven thickness of the incoming material itself cannot be identified in time through fixed inspection, the incoming material with unqualified thickness enters the roll cutting process, causing problems such as out-of-tolerance thickness of the roll-cut finished product, abnormal wear of the tool, and material scrap. This increases production costs and the difficulty of quality control, and restricts the flexible production capacity and inspection reliability of the roll cutting production line.

[0004] Therefore, the present invention proposes a thickness measurement device for roll-cut samples to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing a thickness measurement device for roll-cut samples.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a thickness detection and measurement device for roll-cut samples, comprising a detection platform, an upper laser thickness detector, and a lower laser thickness detector, each in pairs; a marking component for automatically marking uneven thickness areas is provided on the detection platform; detection frames are fixedly connected to both ends of the side wall of the detection platform; a lower roller is rotatably connected to the bottom end between the detection frames; an upper roller is rotatably connected to the top end between the detection frames; a top roller and a bottom roller are rotatably connected to the middle part between the detection frames; a first vertical conveying area for the roll-cut sample is between the lower roller and the top roller; a second vertical conveying area for the roll-cut sample is between the upper roller and the bottom roller; a transition area for the roll-cut sample is between the top roller and the bottom roller; a pair of upper inclined frames are provided in the first vertical conveying area; a pair of lower inclined frames are provided in the second vertical conveying area; an upper detection mechanism and a lower detection mechanism for relay detection of the thickness of the roll-cut sample are respectively provided in the first and second vertical conveying areas; and an adjustment mechanism for adjusting the dwell time according to the width of the roll-cut sample is provided in the transition area. The upper detection mechanism includes an upper drive motor. The upper inclined frame is fixedly connected to the first vertical conveying area of ​​the detection frame. The inner side of each upper inclined frame is rotatably connected to an upper lead screw. An upper drive block is slidably connected through each upper inclined frame. The upper lead screw is threadedly connected to the inner side wall of the upper drive block. The upper laser thickness detectors are fixedly connected to the side of the upper drive block that is close to each other. The upper drive motor is fixedly connected to the side wall of one of the upper inclined frames. The output end of the upper drive motor passes through the inner side of the upper inclined frame and is fixedly connected to the side wall of one of the upper lead screws. The other end of each upper lead screw passes through the outer wall of the upper inclined frame and is fixedly connected to an upper sprocket. An upper chain is connected between the upper sprockets. The rolled sample in the first vertical conveying area is transferred between the two upper laser thickness detectors.

[0007] The lower detection mechanism includes a lower drive motor. The lower inclined frames are all fixedly connected to the second vertical conveying area of ​​the detection frame. A lower lead screw is rotatably connected to the inner side of the lower inclined frame. A lower drive block is slidably connected to the inner side of the lower inclined frame. The lower lead screw is threadedly connected to the inner side wall of the lower drive block. Two lower laser thickness detectors are fixedly connected to the lower drive block on the side closest to each other. The lower drive motor is fixedly connected to the side wall of one of the lower inclined frames. The output end of the lower drive motor passes through the inner side of the lower inclined frame and is fixedly connected to the side wall of one of the lower lead screws. The other end of the lower lead screw passes through the outer wall of the lower inclined frame and is fixedly connected to a lower sprocket. A lower chain is connected between the lower sprockets. The rolled sample in the second vertical conveying area is conveyed between the two lower laser thickness detectors. By setting up the upper and lower detection mechanisms, the upper and lower laser thickness detectors can be driven to move upward and laterally along with the rolled sample for detection. After the upper laser thickness detector completes its operation, it moves downward and resets. During the downward reset, an undetected area will be generated on the rolled sample. Subsequently, the undetected area synchronously enters the second vertical conveying area and is taken over by the lower laser thickness detector. After the lower laser thickness detector resets, it covers the undetected area that the upper laser thickness detector passed through during its reset. This process is repeated to achieve temporal connection and spatial complementarity.

[0008] In the above technical solution, the adjusting mechanism further includes a middle roller, an upper screw, and a lower screw. A pair of upper screws are provided. The middle roller is positioned between the top roller and the bottom roller. Vertical grooves are formed on the front side of the detection frame relative to the position between the top roller and the bottom roller. Adjusting frames are longitudinally slidably connected to the inner side of the vertical grooves. The middle roller is rotatably connected between the adjusting frames. The upper screw is threadedly connected to the top of the detection frame, and its bottom end is rotatably connected to the top of the adjusting frame. A positioning ring is sleeved on the outer wall of the middle roller, and the positioning ring is laterally slidably connected to the middle roller. On the outer wall, an adjustment groove is opened through the inside of the middle roller. A sliding plate is slidably connected to the inner side of the adjustment groove. The sliding plate is fixedly connected to the inner side of the positioning ring. The lower screw is threaded through and connected to the front side of the middle roller. The rear end of the lower screw is rotatably connected to the front side of the sliding plate. Through the setting of the adjustment mechanism, when the sample width increases, the lateral unfolding distance of the upper laser thickness detector and the lower laser thickness detector increases synchronously. The middle roller moves down to extend the transition area, ensuring that the undetected area during the reset of the upper laser thickness detector and the unfolded coverage of the lower laser thickness detector are dynamically matched. A top position sensor is fixedly connected through the side wall of the upper drive block, and a bottom position sensor is fixedly connected through the side wall of the lower drive block. A touch sensor is fixedly connected to the rear end of one of the upper inclined frames and the front end of one of the lower inclined frames. A side frame is fixedly connected to the side wall of one of the upper and lower inclined frames. An adjustment block is laterally slidably connected to the inner side of the side frame. An upper position sensor is fixedly connected to the side wall of the adjustment block. A fixing bolt is threaded through the bottom end of the adjustment block, and the top end of the fixing bolt abuts against the bottom end of the side frame. Through the setting of the touch sensor and the upper position sensor, the distance that the upper and lower laser thickness detectors move laterally according to the width of the rolled sample can be adjusted.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses an upper laser thickness detector and a lower laser thickness detector, respectively positioned beside two vertical paths in an S-shaped path composed of an upper roller, a lower roller, a top roller, and a bottom roller. Both detectors move upwards synchronously with the rolled sample and expand laterally for detection. After the upper laser thickness detector completes its movement, it moves downwards to reset. During the downward reset, an undetected area is generated on the rolled sample. Subsequently, the undetected area synchronously enters the second vertical conveying area and is taken over by the lower laser thickness detector. After the lower laser thickness detector resets, it covers the undetected area that the upper laser thickness detector passed through during its reset. This alternation achieves temporal connection and spatial complementarity, allowing for continuous sample conveying without interruption. The two sets of data are stitched together to form a full-width, full-time thickness matrix, accurately identifying uneven thickness defects on the left and right sides of the rolled sample, thus improving the comprehensiveness and continuity of the detection.

[0010] 2. This invention features a downward-adjustable middle roller in the transition area. As the sample width increases, the lateral expansion distance of the upper and lower laser thickness detectors increases synchronously. The middle roller moves downward to extend the transition area, ensuring dynamic matching between the undetected area during the upper laser thickness detector's reset and the expanded coverage of the lower laser thickness detector. When the width decreases, the middle roller moves upward to avoid redundancy. The displacement of the middle roller is linked to the expansion stroke of the upper and lower laser thickness detectors, maintaining consistency between the transition length and coverage requirements. The equipment can adapt to multiple sample sizes without replacing parts, improving flexible production capabilities, optimizing the S-shaped path space utilization, and balancing detection accuracy and efficiency. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the front of the testing station of the present invention; Figure 2 This is a rear-view three-dimensional structural diagram of the detection platform of the present invention; Figure 3 For the present invention Figure 1 A magnified view of the structure at point A in the middle; Figure 4 For the present invention Figure 1 A magnified schematic diagram of the structure at point B in the middle; Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure at point C in the middle; Figure 6 This is a frontal full-section three-dimensional structural diagram of the detection frame of the present invention; Figure 7 This is a schematic diagram of the downward-facing three-dimensional structure of the lower sloping frame of the present invention. Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point D in the middle; Figure 9 This is a rear-view three-dimensional structural diagram of the upper inclined frame and the upper laser thickness measuring instrument of the present invention; Figure 10This is a schematic diagram of a partial cross-section of the side of the middle roller of the present invention. Figure 11 This is a schematic diagram of the overall appearance structure of the upper screw and lower screw of the present invention; Figure 12 This is a schematic diagram of the three-dimensional structure of the upper inclined frame, upper drive motor, upper lead screw, and upper drive block of the present invention. Figure 13 This is a schematic diagram of the overall appearance structure of the upper inclined frame and the upper drive motor of the present invention.

[0012] In the diagram: 1. Inspection table; 2. Upper laser thickness gauge; 3. Lower laser thickness gauge; 4. Marking assembly; 5. Inspection frame; 6. Lower roller; 7. Upper roller; 8. Top roller; 9. Bottom roller; 10. Upper inclined frame; 11. Lower inclined frame; 12. Upper drive motor; 13. Upper lead screw; 14. Upper drive block; 15. Upper sprocket; 16. Upper chain; 17. Lower drive motor; 18. Lower lead screw; 19. Lower drive block; 20. Lower sprocket; 21. Lower chain; 22. Upper screw; 23. Lower screw; 24. Middle roller; 25. Vertical groove; 26. Adjusting frame; 27. Positioning ring; 28. Adjusting groove; 29. ​​Sliding plate; 30. Touch sensor; 31. Side frame; 32. Adjusting block; 33. Upper position sensor; 34. Top position sensor; 35. Bottom position sensor; 36. Fixing bolt. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0015] In practical use, it has been found that existing laser thickness detection equipment is mostly installed on the material conveyor line before tumbling, with a constant detection position. It can only detect the thickness at fixed points on the sample. Furthermore, the tumbling process has high requirements for the uniformity of the thickness of the incoming material. Since the uneven thickness of the incoming material itself cannot be identified in time through fixed detection, the incoming material with unqualified thickness enters the tumbling process, causing problems such as out-of-tolerance thickness of the tumbled finished product, abnormal wear of the cutting tools, and material scrap. In order to solve the above problems, the following structure was invented.

[0016] like Figures 1-13The thickness measurement device for roll-cut samples shown includes a detection platform 1, an upper laser thickness gauge 2, and a lower laser thickness gauge 3. Each of the upper and lower laser thickness gauges 2 and 3 is provided in pairs. The detection platform 1 is equipped with a marking assembly 4 for automatically marking areas of uneven thickness. The marking assembly 4 includes a pneumatic inkjet head, an air supply pipe, and a limiting frame. The pneumatic inkjet head is connected to a compressed air source via the air supply pipe and is fixedly mounted above the detection platform 1 by the limiting frame. When the main controller determines that the sample thickness is abnormal, it sends a trigger command to the pneumatic inkjet head, driving the ink jet with compressed air to mark the areas of abnormal sample thickness. Detection frames 5 are fixedly connected to both ends of the side wall of the detection platform 1. A lower roller 6 is rotatably connected to the bottom of the measuring frame 5, an upper roller 7 is rotatably connected to the top of the measuring frame 5, and a top roller 8 and a bottom roller 9 are rotatably connected to the middle of the measuring frame 5. The area between the lower roller 6 and the top roller 8 is the first vertical conveying area for the rolled sample, the area between the upper roller 7 and the bottom roller 9 is the second vertical conveying area for the rolled sample, and the area between the top roller 8 and the bottom roller 9 is the transition area for the rolled sample. The first vertical conveying area is provided with a pair of upper inclined frames 10, and the second vertical conveying area is provided with a pair of lower inclined frames 11. The first vertical conveying area and the second vertical conveying area are respectively provided with an upper detection mechanism and a lower detection mechanism for relay detection of the thickness of the rolled sample. The transition area is provided with an adjustment mechanism for adjusting the dwell time according to the width of the rolled sample.

[0017] The lower roller 6 is positioned on the side of the inspection frame 5 away from the inspection table 1, and the upper roller 7 is positioned on the side of the inspection frame 5 closer to the inspection table 1. The top roller 8 and the bottom roller 9 are flush and positioned between the upper roller 7 and the lower roller 6. The distance between the lower roller 6 and the top roller 8 on their cross-sections is the same as the thickness of the rolled sample, and the distance between the upper roller 7 and the bottom roller 9 on their cross-sections is also the same as the thickness of the rolled sample. Both the upper laser thickness detector 2 and the lower laser thickness detector 3 use vertically opposed laser displacement sensors, with the optical axes of the upper and lower sensors located on the same vertical line. The upper laser displacement sensor emits a laser beam to the upper surface of its corresponding sample and receives the reflected light to measure the distance. The laser displacement sensor emits a laser to the corresponding lower surface of the sample and receives the reflected light to measure the distance. The sample thickness is obtained by subtracting the measured distance between the upper and lower sensors from the known distance between them. During detection, the multi-point laser head array is synchronously deployed in the lateral direction, and the thickness data of the corresponding position of the sample is collected at each detection point at the same time. The lateral thickness distribution is obtained by comparing the data, and the defects of left and right thickness difference caused by uneven pressure of the roller cutter in the rolling process are identified, so as to realize the comprehensive detection of the lateral thickness of the rolling sample. The upper laser thickness detector 2 and the lower laser thickness detector 3 have the same height, and the length of the rolling sample in the transition area is the sum of the heights of the three upper laser thickness detectors 2.

[0018] The upper inclined frame 10 is arranged with one high and one low inclination. The bottom of the upper inclined frame 10 is set on the front side. The lower inclined frame 11 is arranged with the opposite high and low inclination to the upper inclined frame 10. When the upper laser thickness detector 2 on the upper inclined frame 10 moves from the low position to the high position, it covers the area on the rolled sample at the same height as the upper laser thickness detector 2. When the lower laser thickness detector 3 on the lower inclined frame 11 moves from the low position to the high position, it covers another area on the rolled sample at the same height as the lower laser thickness detector 3. The two work together to achieve full coverage thickness detection of the rolled sample.

[0019] The upper detection mechanism includes an upper drive motor 12, an upper inclined frame 10 that is fixedly connected to the first vertical conveying area of ​​the detection frame 5, an upper lead screw 13 that is rotatably connected to the inner side of the upper inclined frame 10, an upper drive block 14 that is slidably connected through the upper inclined frame 10, and an upper lead screw 13 that is threadedly connected to the inner side wall of the upper drive block 14. An upper laser thickness detector 2 is fixedly connected to one side of the upper drive block 14. An upper drive motor 12 is fixedly connected to the side wall of one of the upper inclined frames 10, and the output end of the upper drive motor 12 passes through the inner side of the upper inclined frame 10 and is fixedly connected to the side wall of one of the upper lead screws 13.

[0020] The other end of the upper lead screw 13 passes through the outer wall of the upper inclined frame 10 and is fixedly connected to the upper sprocket 15. The upper sprocket 15 is connected to the upper chain 16 for transmission. The rolled sample in the first vertical conveying area is transferred between the two upper laser thickness detectors 2.

[0021] The lower detection mechanism includes a lower drive motor 17, and lower inclined frames 11 are all fixedly connected to the second vertical conveying area of ​​the detection frame 5. A lower lead screw 18 is rotatably connected to the inner side of the lower inclined frame 11, and a lower drive block 19 is slidably connected through the inner side of the lower inclined frame 11. The lower lead screw 18 is threadedly connected to the inner side wall of the lower drive block 19. Two lower laser thickness detectors 3 are fixedly connected to the side of the lower drive block 19 that are close to each other. The lower drive motor 17 is fixedly connected to the side wall of one of the lower inclined frames 11, and the output end of the lower drive motor 17 passes through the inner side of the lower inclined frame 11 and is fixedly connected to the side wall of one of the lower lead screws 18.

[0022] The other end of each lower lead screw 18 passes through the outer wall of the lower inclined frame 11 and is fixedly connected to a lower sprocket 20. The lower sprockets 20 are connected by a lower chain 21. The rolled sample in the second vertical conveying area is conveyed between the two lower laser thickness detectors 3. The two upper lead screws 13 form a rigid synchronous transmission with the upper chain 16 through the upper sprocket 15, ensuring that the two upper drive blocks 14 and the upper laser thickness detectors 2 move strictly synchronously, so that the optical axes of the upper and lower laser displacement sensors remain aligned during the detection process. Similarly, the two lower lead screws 18 are kept synchronous with the lower chain 21 through the lower sprocket 20.

[0023] During the thickness conveying and testing of the rolled sample, the rolled sample is pulled onto the testing table 1 along an S-shaped path consisting of upper roller 7, lower roller 6, top roller 8, and bottom roller 9. During the testing process, the two upper laser thickness gauges 2 are first activated, and the upper drive motor 12 is activated to rotate the upper lead screw 13, which in turn rotates one of the upper sprockets 15. Subsequently, under the transmission of the upper chain 16, the other upper sprocket 15 and the upper lead screw 13 rotate, thereby driving the two upper drive blocks 14 and the upper laser thickness gauges 2 to move backward together. At this time, the rolled sample is synchronously conveyed between the lower roller 6 and the top roller 8, and then moved diagonally backward by the upper drive blocks 14 and the upper laser thickness gauges 2. The movement of the upper laser thickness detector 2 cancels out the upward conveying direction of the rolled sample (causing the upper laser thickness detector 2 to move upward synchronously with the rolled sample, and the upper laser thickness detector 2 to move backward, thereby achieving full thickness detection of a part of the rolled sample). After the detection is completed (at this time, the position initially detected by the upper laser thickness detector 2 moves to the middle position between the lower roller 6 and the top roller 8), the upper drive motor 12 can be controlled to reverse, thereby driving the upper drive block 14 and the upper laser thickness detector 2 to move in the opposite direction to reset (during the reset process, since the upper laser thickness detector 2 moves in the opposite direction to the rolled sample, it cannot perform full detection of the rolled sample, so the lower laser thickness detector 3 needs to perform detection subsequently). When the upper laser thickness gauge 2 moves down to reset, an undetected area will be generated on the rolled sample. Subsequently, the undetected area will synchronously move to the upper half between the lower roller 6 and the top roller 8 (at this time, the half area of ​​the rolled sample that has been detected will be transferred to the transition area between the top roller 8 and the bottom roller 9). Then, the upper drive motor 12 is controlled to continue to rotate forward, driving the upper drive block 14 and the upper laser thickness gauge 2 to move upward. The above operation is repeated to detect the lower half area of ​​the rolled sample between the lower roller 6 and the top roller 8. This process is repeated until the undetected area is transferred to the area between the upper roller 7 and the bottom roller 9 (due to the top roller...). The transition area between roller 8 and bottom roller 9 can convey three half-sections of the rolled sample, so that the lower laser thickness detector 3 can detect the undetected area when the upper laser thickness detector 2 is reset. At this time, the lower drive motor 17 is controlled to start and drive the lower lead screw 18 to rotate, thereby driving one of the lower sprockets 20 to rotate. Subsequently, under the transmission of the lower chain 21, the two lower sprockets 20 and the lower lead screw 18 are driven to rotate simultaneously, thereby driving the two lower drive blocks 19 to move simultaneously, and driving the lower laser thickness detector 3 to move obliquely upward, so as to realize the thickness detection of the undetected area.

[0024] In summary, through the above structural design, the upper laser thickness detector 2 and the lower laser thickness detector 3 are respectively set beside the two vertical paths of the S-shaped path composed of the upper roller 7, lower roller 6, top roller 8, and bottom roller 9. Both move upward synchronously with the rolled sample and expand laterally for detection. After the upper laser thickness detector 2 completes its downward reset, an undetected area will be generated on the rolled sample. Subsequently, the undetected area synchronously enters the second vertical conveying area and is taken over by the lower laser thickness detector 3. After the lower laser thickness detector 3 resets, it covers the undetected area that the upper laser thickness detector 2 passed through during its reset. This repeated alternation achieves temporal connection and spatial complementarity, and the sample can be continuously conveyed without interruption. The two sets of data are spliced ​​into a full-width, full-time thickness matrix, which accurately identifies the uneven thickness defects on the left and right sides of the rolled sample, improving the comprehensiveness and continuity of the detection.

[0025] Based on the above embodiments, it was found during use that although the above structure can achieve comprehensive inspection of rolled samples, in actual production, the width specifications of rolled samples often change with order switching. The length of the transition area of ​​the existing equipment is fixed. When the width increases, the lateral movement distance of the upper laser thickness detector 2 and the lower laser thickness detector 3 increases accordingly, while the length of the transition area cannot be expanded synchronously. This causes the undetected area that the upper laser thickness detector 2 passes through during the reset to exceed the coverage range of the lower laser thickness detector 3 after it is unfolded, forming a blind spot. To solve the above problems, the above structure has been further improved.

[0026] The adjustment mechanism includes a middle roller 24, an upper screw 22, and a lower screw 23. There is a pair of upper screws 22. The middle roller 24 is set between the top roller 8 and the bottom roller 9. Vertical grooves 25 are opened through the front side of the detection frame 5 at the position between the top roller 8 and the bottom roller 9. An adjustment frame 26 is longitudinally slidably connected to the inner side of the vertical groove 25. The middle roller 24 is rotatably connected between the adjustment frames 26. The upper screw 22 is threaded through and connected to the top of the detection frame 5, and the bottom end of the upper screw 22 is rotatably connected to the top of the adjustment frame 26. A positioning ring 27 is sleeved on the outer wall of the middle roller 24.

[0027] The positioning ring 27 is laterally slidably connected to the outer wall of the middle roller 24. An adjustment groove 28 is opened through the middle roller 24. A sliding plate 29 is laterally slidably connected to the inner side of the adjustment groove 28. The sliding plate 29 is fixedly connected to the inner side of the positioning ring 27. The lower screw 23 is threadedly connected to the front side of the middle roller 24. The rear end of the lower screw 23 is rotatably connected to the front side of the sliding plate 29.

[0028] A top position sensor 34 is fixedly connected through the side wall of the upper drive block 14, and a bottom position sensor 35 is fixedly connected through the side wall of the lower drive block 19. Touch sensors 30 are fixedly connected to the rear end of one upper inclined frame 10 and the front end of one lower inclined frame 11. Side frames 31 are fixedly connected to the side walls of one upper inclined frame 10 and one lower inclined frame 11. An adjusting block 32 is laterally slidably connected to the inner side of the side frame 31. An upper position sensor 33 is fixedly connected to the side wall of the adjusting block 32. A fixing bolt 36 is threadedly connected to the bottom end of the adjusting block 32, with the top of the fixing bolt 36 abutting against the bottom end of the side frame 31. The upper position sensor 33, the top position sensor 34, and the bottom position sensor 35 are connected through the side wall. All position sensors 35 are proximity switch type position sensors. The top position sensor 34 and the bottom position sensor 35 are fixed on the upper drive block 14 and the lower drive block 19, respectively. The upper position sensor 33 is fixed on the side wall of the adjustment block 32 as a reference point. When the top position sensor 34 or the bottom position sensor 35 moves into the sensing range of the upper position sensor 33, the upper position sensor 33 triggers a signal and transmits it to the controller. The controller determines that the upper laser thickness detector 2 or the lower laser thickness detector 3 has reached the preset limit position, and then controls the corresponding upper drive motor 12 or lower drive motor 17 to rotate forward, so as to realize the precise limit of the movement position and the stroke control.

[0029] When the width of the rolled sample changes and needs to be adjusted, firstly, rotate the lower screw 23 to move it forward, which in turn pulls the sliding plate 29 forward in the adjustment groove 28 and drives the positioning ring 27 forward to adjust the positioning position of the rolled sample. Then, rotate the upper screw 22 to move it downward, which in turn pushes the adjustment frame 26 to slide downward in the vertical groove 25 and drives the middle roller 24 downward, thereby increasing the conveying path of the rolled sample between the top roller 8 and the bottom roller 9. This prolongs the time for the rolled sample to flow from the first vertical conveying area to the second vertical conveying area, ensuring that the undetected area during the reset of the upper laser thickness detector 2 is dynamically matched with the coverage area of ​​the lower laser thickness detector 3. Then, unscrew the two fixing bolts 36 on the upper inclined frame 10 and the lower inclined frame 11 in sequence to release the position fixing of the adjusting block 32. Then, slide the adjusting block 32 to drive the upper position sensor 33 to move on the side frame 31 (at this time, the position of the upper position sensor 33 needs to be adjusted according to the width of the rolled sample). After the adjustment is completed, rotate the fixing bolt 36 in the opposite direction to make the top of the fixing bolt 36 abut against the bottom of the side frame 31, thereby restricting the position of the adjusting block 32 and completing the adjustment. Finally, during equipment operation, when the upper drive block 14 and the lower drive block 19 move to the other end of the upper inclined frame 10 and the lower inclined frame 11, they will touch the touch sensor 30. At this time, the touch sensor 30 will transmit a signal to the controller, and the controller will control the upper drive motor 12 and the lower drive motor 17 to reverse. Subsequently, when the top position sensor 34 and the bottom position sensor 35 on the upper drive block 14 and the lower drive block 19 move to the position next to the upper position sensor 33, the upper position sensor 33 will transmit a signal to the controller, and the controller will control the upper drive motor 12 and the lower drive motor 17 to rotate forward, thereby achieving precise control of the moving position of the upper laser thickness detector 2 and the lower laser thickness detector 3.

[0030] In summary, through the design of the above structure, by setting a downward-adjustable middle roller 24 in the middle of the transition area, when the sample width increases, the lateral expansion distance of the upper laser thickness detector 2 and the lower laser thickness detector 3 increases synchronously. The middle roller 24 moves downward to extend the transition area, ensuring that the undetected area during the reset of the upper laser thickness detector 2 and the coverage area of ​​the lower laser thickness detector 3 are dynamically matched. When the width decreases, the middle roller 24 moves upward to avoid redundancy. The displacement of the middle roller 24 is linked with the expansion stroke of the upper laser thickness detector 2 and the lower laser thickness detector 3, keeping the transition length consistent with the coverage requirements. The equipment can adapt to multiple sample specifications without replacing parts, improving flexible production capabilities, optimizing the space utilization of the S-shaped path, and balancing detection accuracy and efficiency.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0032] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A thickness measurement device for roll-cut samples, comprising a measurement stage (1), an upper laser thickness gauge (2), and a lower laser thickness gauge (3), characterized in that, The upper laser thickness detector (2) and the lower laser thickness detector (3) are each provided in pairs. The detection platform (1) is provided with a marking component (4) for automatic marking of uneven thickness areas. Detection frames (5) are fixedly connected to both ends of the side wall of the detection platform (1). A lower roller (6) is rotatably connected to the bottom end of the detection frames (5). An upper roller (7) is rotatably connected to the top end of the detection frames (5). A top roller (8) and a bottom roller (9) are rotatably connected to the middle part of the detection frames (5). The lower roller (6) and the top roller (8) are connected by a roller. The first vertical conveying area for cutting samples is located between the upper roller (7) and the bottom roller (9), which is the second vertical conveying area for rolling and cutting samples. The transition area for rolling and cutting samples is located between the top roller (8) and the bottom roller (9). The first vertical conveying area is provided with a pair of upper inclined frames (10), and the second vertical conveying area is provided with a pair of lower inclined frames (11). The first vertical conveying area and the second vertical conveying area are respectively provided with an upper detection mechanism and a lower detection mechanism for relay detection of the thickness of the rolling and cutting samples. The transition area is provided with an adjustment mechanism for adjusting the dwell time according to the width of the rolling and cutting samples.

2. The thickness measurement device for roll-cut samples according to claim 1, characterized in that, The lower roller (6) is located on the side of the testing frame (5) away from the testing table (1), and the upper roller (7) is located on the side of the testing frame (5) close to the testing table (1). The top roller (8) and the bottom roller (9) are flush. The top roller (8) and the bottom roller (9) are located between the upper roller (7) and the lower roller (6). The distance between the lower roller (6) and the top roller (8) on the cross-section is the same as the thickness of the rolled sample. The distance between the upper roller (7) and the bottom roller (9) on the cross-section is the same as the thickness of the rolled sample. The upper laser thickness detector (2) and the lower laser thickness detector (3) are both multi-point laser thickness detectors. The upper laser thickness detector (2) and the lower laser thickness detector (3) have the same height. The length of the rolled sample in the transition area is the sum of the heights of the three upper laser thickness detectors (2).

3. The thickness measurement device for roll-cut samples according to claim 1, characterized in that, The upper inclined frame (10) is arranged with one high and one low. The bottom of the upper inclined frame (10) is set on the front side. The lower inclined frame (11) is arranged with the opposite high and low inclination to the upper inclined frame (10). When the upper laser thickness detector (2) on the upper inclined frame (10) moves from the low position to the high position, it covers the area on the rolled sample at the same height as the upper laser thickness detector (2). When the lower laser thickness detector (3) on the lower inclined frame (11) moves from the low position to the high position, it covers another area on the rolled sample at the same height as the lower laser thickness detector (3). The two work together to achieve full coverage thickness detection of the rolled sample.

4. The thickness measurement device for roll-cut samples according to claim 1, characterized in that, The upper detection mechanism includes an upper drive motor (12), the upper inclined frame (10) is fixedly connected to the first vertical conveying area of ​​the detection frame (5), the inner side of the upper inclined frame (10) is rotatably connected to an upper lead screw (13), the upper inclined frame (10) is slidably connected to an upper drive block (14), the upper lead screw (13) is threadedly connected to the inner side wall of the upper drive block (14), the upper laser thickness detector (2) is fixedly connected to the side of the upper drive block (14), the upper drive motor (12) is fixedly connected to the side wall of one of the upper inclined frames (10), and the output end of the upper drive motor (12) passes through the inner side of the upper inclined frame (10) and is fixedly connected to the side wall of one of the upper lead screws (13).

5. The thickness measurement device for roll-cut samples according to claim 4, characterized in that, The other end of the upper screw (13) passes through the outer wall of the upper inclined frame (10) and is fixedly connected to the upper sprocket (15). The upper sprocket (15) is connected to the upper chain (16) for transmission. The rolled sample of the first vertical conveying area is transmitted between two upper laser thickness detectors (2). The upper drive block (14) is fixedly connected to the top position sensor (34) through the side wall.

6. The thickness measurement device for roll-cut samples according to claim 1, characterized in that, The lower detection mechanism includes a lower drive motor (17). The lower inclined frames (11) are all fixedly connected to the second vertical conveying area of ​​the detection frame (5). The lower inclined frames (11) are rotatably connected to the inner side of the lower screw (18). The lower inclined frames (11) are slidably connected to the inner side of the lower drive block (19). The lower screw (18) is threadedly connected to the inner side wall of the lower drive block (19). The two lower laser thickness detectors (3) are fixedly connected to the lower drive block (19) on the side close to each other. The lower drive motor (17) is fixedly connected to the side wall of one of the lower inclined frames (11). The output end of the lower drive motor (17) passes through the inner side of the lower inclined frame (11) and is fixedly connected to the side wall of one of the lower screws (18).

7. The thickness measurement device for roll-cut samples according to claim 6, characterized in that, The other end of the lower lead screw (18) passes through the outer wall of the lower inclined frame (11) and is fixedly connected to the lower sprocket (20). The lower sprocket (20) is connected to the lower chain (21) for transmission. The rolled sample of the second vertical conveying area is transmitted between two lower laser thickness detectors (3). The side wall of the lower drive block (19) is fixedly connected to the bottom position sensor (35).

8. The thickness measurement device for roll-cut samples according to claim 1, characterized in that, The adjustment mechanism includes a middle roller (24), an upper screw (22) and a lower screw (23). There is a pair of upper screws (22). The middle roller (24) is set between the top roller (8) and the bottom roller (9). The front side of the detection frame (5) is provided with vertical grooves (25) at the positions between the top roller (8) and the bottom roller (9). An adjustment frame (26) is longitudinally slidably connected to the inner side of the vertical groove (25). The middle roller (24) is rotatably connected between the adjustment frames (26). The upper screw (22) is threadedly connected to the top of the detection frame (5), and the bottom end of the upper screw (22) is rotatably connected to the top of the adjustment frame (26). A positioning ring (27) is sleeved on the outer wall of the middle roller (24).

9. A thickness measurement device for roll-cut samples according to claim 8, characterized in that, The positioning ring (27) is laterally slidably connected to the outer wall of the middle roller (24). An adjustment groove (28) is provided through the middle roller (24). A sliding plate (29) is laterally slidably connected to the inner side of the adjustment groove (28). The sliding plate (29) is fixedly connected to the inner side of the positioning ring (27). The lower screw (23) is threadedly connected to the front side of the middle roller (24). The rear end of the lower screw (23) is rotatably connected to the front side of the sliding plate (29).

10. A thickness measurement device for roll-cut samples according to claim 1, characterized in that, Touch sensors (30) are fixedly connected to the rear end of one of the upper inclined frames (10) and the front end of one of the lower inclined frames (11). Side frames (31) are fixedly connected to the side walls of one of the upper inclined frames (10) and one of the lower inclined frames (11). An adjustment block (32) is slidably connected to the inner side of the side frame (31). An upper position sensor (33) is fixedly connected to the side wall of the adjustment block (32). A fixing bolt (36) is threaded through the bottom end of the adjustment block (32). The top end of the fixing bolt (36) abuts against the bottom end of the side frame (31).

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