Strip-shaped roller and strip-shaped roller detection method

Abstract

The invention relates to a strip-shaped roller and a detection method. The strip-shaped roller comprises a roller body, and an electrical assembly comprises a first circuit board, a second circuit board, a first coil arranged on the first circuit board, a first communication piece, a second coil arranged on the second circuit board, a second communication piece, a plurality of laser transceivers and reflective strips corresponding to the laser transceivers; the first circuit board and the roller body can rotate synchronously relative to the second circuit board, the laser transceivers correspond to the mounting channels one to one, each laser transceiver and the corresponding mounting channel are located on the same radius, and when the laser transceivers on the first circuit board receive laser from the reflective strips, signals are output. The laser transceiver and the reflective strip are controlled to control the detection component corresponding to the laser transceiver and the reflective strip to detect the flatness of the plate pressed on the roller body at the position corresponding to the detection component, a conductive slip ring does not need to be arranged in the mode, the working requirement of the plate shape roller can be met, and the working reliability of the plate shape roller is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of plate-shaped roller detection, and in particular to a plate-shaped roller and a detection method for the plate-shaped roller. Background Art

[0002] Sheet metals are produced by rolling mills, and the flatness of the sheet is known as shape. Due to the tension in the sheet during the curling process, unevenness can be difficult to detect during production. However, after the finished sheet is cut into sections, inferior sheet metal exhibits noticeable warping. Therefore, contact measurement is required to monitor the sheet shape during production. This type of equipment is called a shape roller.

[0003] In the prior art, all detection components in the plate roller need to be electrically connected for detection. However, since the plate roller is in a rotating state during operation, in order to prevent the cables from being entangled, conductive slip rings are usually used to connect the cables. However, when the plate roller works for a long time and the conductive slip rings reach the end of their service life, the machine needs to be stopped for replacement, which is not only time-consuming and labor-intensive, but also reduces work efficiency. In addition, the steps for connecting the cables of various components through the conductive slip rings are complicated and cumbersome.

[0004] Therefore, it is necessary to improve the prior art to overcome the above defects. Summary of the Invention

[0005] In view of this, the embodiments of the present application provide a plate-shaped roller to solve at least one problem existing in the background technology, including: Support frame; The roller body includes a rotating portion and a mounting portion connected to the rotating portion. The roller body is mounted on the support frame via a mounting seat and is rotatably connected to the mounting seat via the rotating portion. The rotating portion has a hollow channel arranged along the axial direction and a plurality of mounting channels distributed on the mounting portion. The plurality of mounting channels are evenly distributed along the circumference of the roller body. Detection components, at least two of which are axially mounted in each of the mounting channels, and are used to detect the flatness of the plate attached to the roller body; An electrical component includes a box mounted on the mounting base, a first circuit board connected to the rotating part and a second circuit board fixed to the box, a power supply module, a communication module and a rotation angle measurement module; the first circuit board can rotate synchronously with the roller body relative to the second circuit board, the power supply module includes a first coil arranged on the first circuit board and a second coil arranged on the second circuit board, the communication module includes a first communication component arranged on the first circuit board and a second communication component arranged on the second circuit board, the rotation angle measurement module includes a plurality of laser transceivers arranged on the first circuit board and a reflective strip arranged on the second circuit board and corresponding to the laser transceivers, the laser transceivers correspond one-to-one to the mounting channels, and each laser transceiver and the corresponding mounting channel are on the same radius.

[0006] Optionally, in the plate-shaped roller, the plurality of laser transceivers are evenly spaced along the circumference, and the plurality of laser transceivers are respectively located at different radii with the rotating part as the center.

[0007] Optionally, in the plate-shaped roller, the central angle of each reflective strip is the same.

[0008] Optionally, in the above-mentioned plate-shaped roller, the first circuit board and the second circuit board include opposite surfaces and opposite back surfaces arranged relative to each other, the power supply module and the rotation angle measurement module are both arranged on the opposite surfaces, and the communication module is arranged on the opposite back surfaces.

[0009] Optionally, the plate-shaped roller mentioned above is further provided with at least a first through-hole and a second through-hole on the box body, the first through-hole being used for allowing a cable to pass through to connect the second communication component with the terminal device, and the second through-hole being used for connecting a cooling pipe.

[0010] Optionally, the box of the plate-shaped roller is made of metal.

[0011] Optionally, in the above-mentioned plate-shaped roller, the electrical component further includes an excitation power module, a signal amplification module, a signal processing module, and a control module which are arranged on the first circuit board and connected to the power supply module.

[0012] Optionally, in the plate-shaped roller, the rotating portion extends into the box body and is connected to the first circuit board, and a sealing member is provided between the rotating portion and the box body.

[0013] The present application also provides a detection method using any one of the above-described plate-shaped rollers, the detection method comprising: The sheet is tensioned and pressed against the roller, and the sheet is subjected to tension to drive the roller to rotate; When the laser transceiver corresponding to the reflective strip receives the laser reflected by the reflective strip, the laser transceiver will output a signal to the control module; The control module controls the detection component on the same extension line as the laser transceiver to start detection; The detection component transmits the detection data information of the corresponding position of the plate to the control module for processing.

[0014] Optionally, in the above-mentioned plate-shaped roller detection method, the detection data information includes force data, temperature data, and excitation current data.

[0015] Compared with the prior art, the present application has the following beneficial effects: a box body, a first circuit board and a second circuit board, a power supply module, a communication module and a rotation angle measurement module are provided on one side of the roller body; and the first circuit board can rotate synchronously with the roller body relative to the second circuit board, the power supply module includes a first coil provided on the first circuit board and a second coil provided on the second circuit board, the communication module includes a first communication component provided on the first circuit board and a second communication component provided on the second circuit board, and the rotation angle measurement module includes a plurality of laser transceivers provided on the first circuit board and a plurality of laser transceivers provided on the second circuit board and communicating with the laser transceivers. The reflective strip corresponding to the transceiver, the laser transceiver and the installation channel are in one-to-one correspondence, and each laser transceiver and the corresponding installation channel are on the same radius, so that the roller drives the first circuit board to rotate. When the laser transceiver on the first circuit board receives the laser from the reflective strip, it outputs a signal, so that the control module controls the detection component corresponding to the laser transceiver and the reflective strip to perform flatness detection on the plate at the position corresponding to the detection component pressed on the roller body. This method does not require the installation of a conductive slip ring, and wireless transmission can be used to realize the detection of the plate. It can not only meet the working requirements of the plate-shaped roller, but also greatly improve the working reliability of the plate-shaped roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the plate-shaped roller shown in this application; Figure 2 yes Figure 1 A cross-sectional view of the plate-shaped roller shown; Figure 3 yes Figure 2 A partial enlarged view of A of the plate-shaped roller shown; Figure 4 It is a schematic diagram of the structure of the electrical assembly of the plate-shaped roller of the present application; Figure 5 is a schematic diagram of the first circuit board in the plate roller; Figure 6 is a schematic diagram of a second circuit board of a plate-shaped roller; Figure 7 This is the circuit diagram of the plate roller.

[0017] in: 1-support frame; 2- roller body, 21- rotating part, 211- hollow channel, 22- mounting part, 221- mounting channel, 23- sealing member; 3-Detection components; 4-electrical components, 41-housing, 411-first perforation, 412-second perforation, 42-first circuit board, 43-second circuit board, 431-opposite side, 432-opposite side, 44-power supply module, 441-first coil, 442-second coil, 45-communication module, 451-first communication component, 452-second communication component, 46-rotation angle measurement module, 461-laser transceiver, 462-reflective strip, 47-excitation power supply module, 48-signal amplification module, 49-signal processing module, 50-control module. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0019] As used herein, the terms "comprise," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] See also Figure 1 and Figure 2As shown, a plate-shaped roller shown in a preferred embodiment of the present application is used to detect the flatness of a plate. The plate-shaped roller includes a support frame 1, a roller body 2, and a detection component 3. The roller body 2 includes a rotating portion 21 and a mounting portion 22 connected to the rotating portion 21. The roller body 2 is mounted on the support frame 1 via a mounting seat and is rotatably connected to the mounting seat via the rotating portion 21. The rotating portion 21 has a hollow channel 211 arranged axially and a plurality of mounting channels 221 distributed on the mounting portion 22. The plurality of mounting channels 221 are evenly distributed along the circumference of the roller body 2. At least two detection components 3 are axially mounted in each mounting channel 221, so that the detection component 3 can detect the flatness of the plate pressed onto the roller body 2.

[0022] It should be noted that in this embodiment, four mounting channels 221 are provided along the circumference of the roller body 2, and these four mounting channels 221 are evenly spaced to form multiple detection points. Each mounting channel 221 is evenly spaced along the axial direction, thereby enabling comprehensive inspection of the plate and providing more accurate inspection data. In this embodiment, the distance between two adjacent detection components 3 in the mounting channels 221 is 52 mm, and the effective inspection length of the roller body 2 is 500 mm to 2000 mm. In other embodiments, the number of mounting channels 221, the number of detection components 3, and the effective inspection length of the roller body 2 are not specifically limited and can be set according to actual circumstances.

[0023] It can be understood that by providing an axial hollow channel 211 on the rotating part 21 of the roller body 2, the connecting cables of multiple detection components 3 in several installation channels 221 can be extended into the hollow channel 211 to facilitate cable routing and prevent multiple bundles of cables from being entangled.

[0024] In this application, reference Figure 2-Figure 6As shown, the plate-shaped roller further includes an electrical assembly 4 disposed on one side of the roller body 2. The electrical assembly 4 includes a housing 41 mounted on a mounting base, a first circuit board 42 connected to the rotating portion 21, a second circuit board 43 fixed to the housing 41, a power supply module 44, a communication module 45, and a rotation angle measurement module 46. Among them, the first circuit board 42 and the second circuit board 43 are both located in the box body 41, and the first circuit board 42 is connected to the rotating part 21 and can rotate synchronously with the roller body 2 relative to the second circuit board 43; the power supply module 44 includes a first coil 441 arranged on the first circuit board 42 and a second coil 442 arranged on the second circuit board 43, and the communication module 45 includes a first communication component 451 arranged on the first circuit board 42 and a second communication component 452 arranged on the second circuit board 43; the rotation angle measurement module 46 includes several laser transceivers 461 arranged on the first circuit board 42 and a reflective strip 462 arranged on the second circuit board 43 and corresponding to the laser transceiver 461, and the laser transceiver 461 and the corresponding mounting channel 221 are on the same radius.

[0025] It can be understood that by arranging the first coil 441 and the second coil 442 on the first circuit board 42 and the second circuit board 43 respectively, and arranging the first communication part 451 and the second communication part 452 on the first circuit board 42 and the second circuit board 43 respectively, and the first circuit board 42 can rotate synchronously with the roller body 2 relative to the second circuit board 43, that is, the first circuit board 42 can drive the first coil 441 and the first communication part 451 to rotate relative to the second coil 442 and the second communication part 452, so that the detection of the plate-shaped roller can be realized through wireless power supply and communication, completely eliminating the physical electrical connection between the rotating parts and the non-rotating parts, significantly reducing the maintenance frequency, and improving work efficiency. In addition, since there is no cable connection between the first circuit board 42 and the second circuit board 43, the installation difficulty and transmission loss are greatly reduced.

[0026] It can be understood that by placing the laser transceiver 461 and the corresponding installation channel 221 on the same radius, that is, the laser transceiver 461 and the reflective strip 462 cooperate to form a rotation position trigger system for the plate roller, the laser transceiver 461 rotates with the roller body 2, and when the laser is irradiated to the reflective strip 462 on the second circuit board 43 fixed to the box body 41, a reflection signal is immediately generated. After the signal is received by the laser transceiver 461, all detection components 3 in an installation channel 221 in the axial direction are controlled to start detection, while the detection components 3 in other installation channels 221 are not turned on for detection, thereby realizing the detection of the flatness of the plate corresponding to the detection component 3, realizing time-sharing and precise collection of the detection component 3, avoiding invalid data processing, and improving the real-time and reliability of the entire plate roller detection.

[0027] In this embodiment, the rotating portion 21 extends into the housing 41 and connects to the first circuit board 42 to drive the rotation of the first circuit board 42. A seal 23 is also provided between the rotating portion 21 and the housing 41 to ensure the free rotation of the roller 2 and provide a sealing and protective function. In this embodiment, the sealing member 23 is an oil seal.

[0028] In this embodiment, the model of the communication module 45 is NRF24L01, which has a 2.4GHz radio frequency transmission signal to ensure the communication rate; the type of the laser transceiver 461 is AT-LR61, and the laser transceiver 461 has the characteristics of NPN normally open and normally closed output modes, and an adjustable detection distance of 30-8000mm.

[0029] Furthermore, the plurality of laser transceivers 461 are evenly spaced along the circumferential direction, and the plurality of laser transceivers 461 are respectively located at different radii with the rotating portion 21 as the center.

[0030] Understandably, the placement of laser transceivers 461 at different radii uniquely identifies the four mounting channels 221, preventing signal confusion among the detection components 3 within the four mounting channels 221 during high-speed rotation, thereby ensuring absolute positioning accuracy for rotation angle detection. It should be noted that since the reflective strips 462 correspond to the positions of the laser transceivers 461, the four reflective strips 462 are also located at different radii.

[0031] Furthermore, the central angle of each reflective strip 462 is the same. This arrangement ensures that the trigger arc length covered by each reflective strip 462 along the circumference is completely consistent, thereby ensuring that no matter where the roller body 2 rotates between any two installation channels 221, the effective detection time of the corresponding detection component 3 is the same. The horizontal data can be directly compared horizontally, eliminating calculation errors and eliminating the need to compensate for time deviations caused by different arc lengths, thereby reducing the difficulty of subsequent data processing.

[0032] In this embodiment, the first circuit board 42 and the second circuit board 43 include opposite surfaces 431 and opposite back surfaces 432 , the power supply module 44 and the rotation angle measurement module 46 are both arranged on the opposite surface 431 , and the communication module 45 is arranged on the opposite back surface 432 .

[0033] It can be understood that the communication module 45 is set on the opposite side 432 so that there is no other metal between the opposite sides 431 of the first circuit board 42 and the second circuit board 43, thereby avoiding the electromagnetic interference between the first circuit board 42 and the second circuit board 43 by the metal, ensuring the highest magnetic field coupling efficiency and stable power supply.

[0034] In this embodiment, at least a first perforation 411 and a second perforation 412 are provided on the box body 41. The first perforation 411 is used for allowing a cable to pass through to connect the second communication component 452 and the terminal device, thereby ensuring high-speed return of detection data. The second perforation 412 is used to connect a cooling pipe, such as compressed air cooling, to solve the thermal attenuation problem when the first coil 441 and the second coil 442 are powered in a high temperature environment, thereby extending the life of the equipment.

[0035] It should be noted that, in this embodiment, the box body 41 is made of metal. On the one hand, the metal box body 41 can provide electromagnetic shielding to suppress external interference with wireless communication. On the other hand, the metal box body 41 can also serve as a structural support to enhance the vibration resistance of the entire plate roller.

[0036] Further, refer to Figure 7 As shown, the electrical component 4 further includes an excitation power module 47 , a signal amplification module 48 , a signal processing module 49 , and a control module 50 , which are arranged on the first circuit board 42 and connected to the power supply module 44 .

[0037] Specifically, the power supply module 44 is connected to the excitation power supply module 47 so that the power supply module 44 can send the induced power into the excitation power supply module 47, that is, convert the high-frequency AC into a stable DC excitation source to power subsequent modules; the excitation power supply module 47 is connected to several detection components 3 to provide a constant current for the detection components 3; the detection components 3 are also connected to the signal amplification module 48 so that the weak signal output by the detection components 3 directly enters the signal method module for amplification, providing sufficient dynamic range for subsequent analog-to-digital conversion; the signal amplification module 48 is connected to the signal processing module 49, thereby transmitting the amplified analog signal to the signal processing module 49 to achieve high-resolution analog-to-digital conversion, so that the analog signal is converted into a digital signal; the control module 50 is connected to the signal processing module 49 and the communication module 45 respectively, so that the control module 50 can receive the digital signal output from the signal processing module 49 and upload it to the terminal device through the communication module 45; in this embodiment, the control module 50 is also connected to the excitation power supply module 47 so that the control module 50 can read the excitation current and temperature data collected by the excitation power supply module 47 in real time.

[0038] The present application also provides a method for detecting a plate-shaped roller, the method comprising: The plate is tensioned and pressed against the roller 2, and the plate is subjected to tension to drive the roller 2 to rotate; When the laser transceiver 461 corresponding to the reflective strip 462 receives the laser reflected by the reflective strip 462 , the laser transceiver 461 outputs a signal to the control module 50 ; The control module 50 controls the detection component 3 on the same extension line as the laser transceiver 461 to start detection; The detection component 3 transmits the detection data information of the corresponding position of the plate to the control module 50 for processing.

[0039] The detection data information includes force data, temperature data, and excitation current data.

[0040] In summary, the plate-shaped roller detection process of the present application is as follows: the plate to be detected is delivered to the plate-shaped roller detection area via a conveying device. The plate is tensioned and pressed against the roller body 2. The plate is subjected to tension, which drives the roller body 2 to rotate. The roller body 2 rotates on the support frame 1 via the mounting seat. The rotating part 21 and the mounting seat are connected by a bearing to ensure smooth rotation. When the roller body 2 rotates, the laser transceiver 461 installed on the first circuit board 42 continuously emits laser light to detect the corresponding reflective strip 462. When the laser transceiver 461 receives the laser light reflected by the reflective strip 462, it outputs a trigger signal to the control module 50. Each laser transceiver 461 corresponds to a mounting channel 221, and the trigger signal indicates that the plate has been pressed to the corresponding detection component 3 position. After receiving the trigger signal, the control module 50 immediately controls the detection component 3 located on the same radius as the laser transceiver 461 to start detection. The detection component 3 detects the pressure signal of the corresponding position of the plate, and the signal is transmitted to the signal amplification module 48 on the first circuit board 42 through the cable. The signal amplification module 48 amplifies the weak signal and then sends it to the signal processing module 49 for analog-to-digital conversion to convert the analog signal into a digital signal. The control module 50 receives the digital signal transmitted by the signal processing module 49 and processes the data, including filtering, compensation and other operations, to calculate the flatness data of the corresponding position of the plate, and then transmits it to the second communication component 452 on the second circuit board 43 through the first communication component 451, and then transmits it to the terminal device through the cable.

[0041] The present application has the following beneficial effects: a housing, a first circuit board, a second circuit board, a power supply module, a communication module, and a rotation angle measurement module are provided on one side of a roller body; the first circuit board is capable of rotating synchronously with the roller body relative to the second circuit board; the power supply module includes a first coil provided on the first circuit board and a second coil provided on the second circuit board; the communication module includes a first communication component provided on the first circuit board and a second communication component provided on the second circuit board; the rotation angle measurement module includes a plurality of laser transceivers provided on the first circuit board and reflective strips provided on the second circuit board and corresponding to the laser transceivers; the laser transceivers correspond one-to-one with the mounting channels, and each laser transceiver and the corresponding mounting channel are on the same radius, so that the roller body drives the first circuit board to rotate; when the laser transceiver on the first circuit board receives laser light from the reflective strip, it outputs a signal, causing the control module to control the detection component corresponding to the laser transceiver and the reflective strip to perform flatness detection on the plate pressed on the roller body at the position corresponding to the detection component. This method does not require the provision of a conductive slip ring, and the plate detection is achieved through wireless transmission. This not only meets the working requirements of the plate-shaped roller, but also greatly improves the working reliability of the plate-shaped roller.

[0042] The above is only a specific implementation of the present application. Any other improvements made based on the concept of the present application are considered to be within the scope of protection of the present application.

Claims

1. A plate-shaped roller, characterized in that: include: Support frame; The roller body includes a rotating portion and a mounting portion connected to the rotating portion. The roller body is mounted on the support frame via a mounting seat and is rotatably connected to the mounting seat via the rotating portion. The rotating portion has a hollow channel arranged along the axial direction and a plurality of mounting channels distributed on the mounting portion. The plurality of mounting channels are evenly distributed along the circumference of the roller body. Detection components, at least two of which are axially mounted in each of the mounting channels, and are used to detect the flatness of the plate attached to the roller body; An electrical component includes a box mounted on the mounting base, a first circuit board connected to the rotating part and a second circuit board fixed to the box, a power supply module, a communication module and a rotation angle measurement module; the first circuit board can rotate synchronously with the roller body relative to the second circuit board, the power supply module includes a first coil arranged on the first circuit board and a second coil arranged on the second circuit board, the communication module includes a first communication component arranged on the first circuit board and a second communication component arranged on the second circuit board, the rotation angle measurement module includes a plurality of laser transceivers arranged on the first circuit board and a reflective strip arranged on the second circuit board and corresponding to the laser transceivers, the laser transceivers correspond one-to-one to the mounting channels, and each laser transceiver and the corresponding mounting channel are on the same radius.

2. The plate-shaped roller according to claim 1, characterized in that The plurality of laser transceivers are evenly spaced along the circumferential direction, and the plurality of laser transceivers are respectively located on different radii with the rotating part as the center.

3. The plate-shaped roller according to claim 2, characterized in that The central angle of each reflective strip is the same.

4. The plate-shaped roller according to claim 1, characterized in that The first circuit board and the second circuit board include opposite surfaces and opposite back surfaces. The power supply module and the rotation angle measurement module are both arranged on the opposite surfaces, and the communication module is arranged on the opposite back surfaces.

5. The plate-shaped roller according to claim 1, characterized in that The box body is further provided with at least a first through-hole and a second through-hole, the first through-hole is used for allowing a cable to pass through to connect the second communication component with the terminal device, and the second through-hole is used for connecting a cooling pipe.

6. The plate-shaped roller according to claim 1, characterized in that The box is made of metal.

7. The plate-shaped roller according to claim 1, characterized in that The electrical component further includes an excitation power module, a signal amplification module, a signal processing module, and a control module which are arranged on the first circuit board and connected to the power supply module.

8. The plate-shaped roller according to claim 1, characterized in that The rotating part extends into the box body and is connected to the first circuit board. A sealing member is provided between the rotating part and the box body.

9. A method for detecting a plate-shaped roller according to any one of claims 1 to 8, characterized in that: The detection method comprises: The sheet is tensioned and pressed against the roller, and the sheet is subjected to tension to drive the roller to rotate; When the laser transceiver corresponding to the reflective strip receives the laser reflected by the reflective strip, the laser transceiver will output a signal to the control module; The control module controls the detection component on the same extension line as the laser transceiver to start detection; The detection component transmits the detection data information of the corresponding position of the plate to the control module for processing.

10. The method for detecting a plate-shaped roller according to claim 9, characterized in that: The detection data information includes force data, temperature data, and excitation current data.

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