A kind of deviation rectifying device for laser transparent film

Abstract

This invention provides a polarization correction device for laser-transparent films, belonging to the field of polarization correction. The device includes a conveying mechanism, an offset detection mechanism, and a polarization correction mechanism. The offset detection mechanism and the polarization correction mechanism are respectively mounted on the conveying mechanism. A control device is electrically connected to both the offset detection mechanism and the polarization correction mechanism. The offset detection mechanism performs offset detection based on several light sources, including visible light. In this invention, by adding multiple light sources, we can confirm the boundary changes of the material through multiple channels and improve the recognition accuracy by observing trend changes. This overcomes the limitations of previous infrared polarization correction sensors for certain materials, enabling them to meet the polarization correction needs of more materials. The multiple light sources can better filter out external interference from the environment affecting the sensor.

Description

Technical Field

[0001] This invention relates to the field of web correction technology, specifically to a web correction device for laser transparent films. Background Technology

[0002] In modern industrial production, most rolled materials require web guiding devices to ensure accurate directional positioning during transport. Web guiding involves locating the material's boundaries, which can be achieved through various methods such as infrared, ultrasonic, CMOS, and CCD camera methods. CMOS and CCD camera methods offer high precision but consume significant energy and have high sensor costs. Ultrasonic methods have lower precision, are susceptible to external interference, and have high requirements for the material being measured. Infrared methods offer precision second only to CMOS, while CCD camera methods can achieve 1mm accuracy and have the lowest cost; therefore, infrared methods are the most commonly used for web guiding in actual production.

[0003] The infrared edge-finding method has certain requirements for the material being tested. The principle is that the material blocks the infrared light. The position of the material blocking the infrared light is determined by the receiving lamp. Then, the position of the material roller is changed by the driver to ensure that the material is in the center of the roller.

[0004] However, in current production, the laser transparent film is a special material that cannot block infrared light, causing the infrared correction sensor to malfunction. Summary of the Invention

[0005] This invention provides a correction device for laser transparent films to solve the technical problem mentioned in the background art: in current production, laser transparent films are made of a special material that cannot block infrared light, causing infrared correction sensors to malfunction.

[0006] To solve the above-mentioned technical problems, the present invention discloses a correction device for laser transparent film, comprising: a conveying mechanism, an offset detection mechanism, and a correction mechanism. The offset detection mechanism and the correction mechanism are respectively disposed on the conveying mechanism. A control device is electrically connected to the offset detection mechanism and the correction mechanism respectively. The offset detection mechanism performs offset detection based on several light sources, including visible light.

[0007] Preferably, the conveying mechanism includes: an outer casing, with a winding device fixedly connected to one side of the outer casing; the length of the laser transparent film is in the left-right direction; and the offset detection mechanism includes:

[0008] Translation component one is connected to the upper part of the outer box. The moving end of translation component one is connected to translation component two. The moving end of translation component two is connected to a light source module. The light source module is used to emit three sets of light, including visible light.

[0009] Translation component three is connected to the lower end of the outer casing. The moving end of translation component three is connected to translation component four. The moving end of translation component four is connected to a light receiving module. The light receiving module is used to receive three sets of light after passing through the laser transparent film. The three sets of light include visible light. The light receiving module is located directly below the light source module.

[0010] The first acquisition module is used to receive optical signal information emitted by the light source module;

[0011] The second acquisition module is used to acquire optical signal information received by the optical receiving module;

[0012] The control device is electrically connected to translation component one, translation component two, translation component three, translation component four, the first acquisition module, and the second acquisition module. The control device controls translation component one and translation component three to move synchronously, and controls translation component two and translation component four to move synchronously. The movement direction of translation component one and translation component three, translation component two, and translation component four is the forward and backward direction.

[0013] Preferably, the offset detection mechanism further includes:

[0014] The environmental monitoring unit is used to monitor the environmental information inside the outer casing;

[0015] In the first calculation unit, during the winding process of the laser transparent film, the control device controls the operation of the light source module, the light receiving module, the first acquisition module, and the second acquisition module in real time or periodically, and calculates the initial offset evaluation result of each light source without offset based on the first calculation unit.

[0016] Preferably, the first calculation unit calculates based on the following formula:

[0017] ;

[0018] N is the total number of sub-detection ranges. The symbol for rounding up is 'ln'; 'ln' is the natural logarithm, and 'e' is the natural constant. The maximum historical deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism; The historical minimum deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism. The diameter of each light source;

[0019] The first alarm unit is used to trigger an alarm when the offset evaluation result based on any light source is less than the corresponding first preset value.

[0020] Preferred options also include:

[0021] The memory stores the historical detection results of the offset detection mechanism. The historical detection results include: the historical initial offset evaluation results of each light source for the current type of laser transparent film and the corresponding historical detection results of the environmental detection unit, and the intensity decay state coefficient of the current type of light source module over time.

[0022] The selection unit is used to select the historical initial offset evaluation result without offset that corresponds to the historical detection result of the environmental detection unit with a similarity greater than the second preset value to the current environmental detection unit detection result, and use it as the target historical initial offset evaluation result.

[0023] The second calculation unit is used to calculate the unreliability coefficient of the light source offset evaluation results;

[0024] ;

[0025] Let be the unreliability coefficient of the offset evaluation result for the j-th light source; This represents the initial offset evaluation result when the detection is based on the j-th light source and the current state is not offset. The total number of historical target offset evaluation results without offset, corresponding to the current environmental detection unit detection result of the j-th light source; This represents the initial offset evaluation result of the target history when it is not offset, corresponding to the j-th light source. As the first evaluation weight, As the second evaluation weight; This is the intensity decay state coefficient corresponding to the current usage time of the current type of light source module;

[0026] The second alarm unit will issue an alarm when the unreliability coefficient of the offset evaluation result of any light source in the light source module is greater than or equal to the corresponding third preset value, reminding the user to replace the light source module.

[0027] Preferably, the offset detection mechanism further includes:

[0028] The coordinate system construction unit takes the center of the contact surface between the light receiving module and the moving end of the translation component two as the origin, the left and right directions as the X direction, and the front and back directions as the Y direction to construct the target coordinate system. The transmission direction of the transmission mechanism is the left and right direction.

[0029] The first division unit is used to divide the left-right offset detection range into several sub-detection ranges by the front-back dividing lines and number them.

[0030] ;

[0031] N is the total number of sub-detection ranges. The symbol for rounding up is 'ln'; 'ln' is the natural logarithm, and 'e' is the natural constant. The maximum historical deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism; The historical minimum deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism. The diameter of each light source;

[0032] The first construction unit, when the first alarm unit alarms, controls translation component four and translation component two to move at a first rated speed within a preset forward and backward displacement range in the current sub-detection range. The first construction unit constructs a forward and backward coordinate curve of each light source in the current sub-detection range and the signal intensity curve of the light source received by the receiving module. Then, the control device controls translation component three and translation component one to move to the next sub-detection range, and controls translation component four and translation component two to move at a first rated speed within a preset forward and backward displacement range in the next sub-detection range. The first construction unit constructs a forward and backward coordinate curve of each light source in the next sub-detection range and the signal intensity curve of the light source received by the receiving module. Finally, the forward and backward coordinate curve of each light source in each sub-detection range and the signal intensity curve of the light source received by the receiving module are obtained.

[0033] The offset evaluation module is used to evaluate the offset status of each sub-detection range based on the forward and backward coordinates of each light source within each sub-detection range and the signal intensity curve of the light source received by the receiving module.

[0034] Preferably, the conveying mechanism includes: an auxiliary roller fixedly installed at the point where the laser transparent film enters and exits the outer casing, and a correction roller installed below the laser transparent film inside the outer casing. The front and rear ends of the correction roller are installed on two support boxes, which are connected to the inner walls of the front and rear sides of the outer casing.

[0035] Preferably, it also includes a cleaning device, the cleaning device comprising:

[0036] The cleaning roller is connected to the outer casing and is located near the feed inlet of the outer casing.

[0037] Mounting plate two is fixedly installed on the right side wall inside the outer casing. A vertically installed electric telescopic rod is fixedly installed on mounting plate two. The electric telescopic rod is fixedly connected to the buffer box. A connecting rod two passes through the buffer box. A limiting block is connected to the end of the connecting rod two. A cleaning head is connected to the other side of the connecting rod two. A return spring is sleeved on the connecting rod two between the buffer box and the cleaning head. The two ends of the return spring are fixedly connected to the buffer box and the cleaning head, respectively.

[0038] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 This is a schematic diagram of the structure of the present invention;

[0041] Figure 2 This is a schematic diagram of the multifunctional installation device of the present invention;

[0042] In the diagram: 1. Outer casing; 2. Translation component one; 3. Translation component two; 4. Translation component three; 5. Translation component four; 6. Light source module; 7. Light receiving module; 8. Support platform; 9. Rewinding roller; 10. Auxiliary roller; 11. Correcting roller; 12. Support box; 13. Vertical connecting column; 14. Conical body; 15. Mounting block; 16. Pad block; 17. Arc-shaped groove; 18. Connecting box; 19. Connecting rod; 20. Horizontal block one; 21. Matching spring; 22. Cleaning roller; 23. Mounting plate two; 24. Vertical rod; 25. Electric telescopic rod; 26. Gear; 27. Buffer box; 28. Connecting rod two; 29. ​​Return spring; 30. Cleaning head; 31. Horizontal block two; 32. L-shaped block; 33. Cooling fan; 34. Storage groove. Detailed Implementation

[0043] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0044] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0045] The present invention provides the following embodiments.

[0046] Example 1

[0047] This invention provides a spin-correction device for laser transparent films, comprising: a conveying mechanism, an offset detection mechanism, and a spin-correction mechanism. The offset detection mechanism and the spin-correction mechanism are respectively mounted on the conveying mechanism. A control device is electrically connected to the offset detection mechanism and the spin-correction mechanism respectively. The offset detection mechanism performs offset detection based on several light sources, including visible light.

[0048] Preferably, the conveying mechanism includes: an outer casing 1, with a winding device fixedly connected to one side of the outer casing 1; the length of the laser transparent film is in the left-right direction; and the offset detection mechanism includes:

[0049] Translation component 1 2 is connected to the upper part of the outer casing 1. The moving end of translation component 1 2 is connected to translation component 2 3. The moving end of translation component 2 3 is connected to the light source module 6. The light source module 6 is used to emit three sets of light, including visible light.

[0050] Translation component 3 4 is connected to the lower end of the outer casing 1. The moving end of translation component 3 4 is connected to translation component 4 5. The moving end of translation component 4 5 is connected to light receiving module 7. Light receiving module 7 is used to receive three sets of light after passing through the laser transparent film. The three sets of light include visible light. Light receiving module 7 is located directly below light source module 6.

[0051] The first acquisition module is used to receive optical signal information emitted by the light source module 6;

[0052] The second acquisition module is used to acquire optical signal information received by the optical receiving module 7;

[0053] The control device is electrically connected to translation components 1 (2), 2 (3), 3 (4), 4 (5), the first acquisition module, and the second acquisition module. The control device controls the synchronous movement of translation components 1 (2) and 3 (4), as well as the synchronous movement of translation components 2 (3) and 4 (5). The movement direction of translation components 1 (2), 3 (3), 4 (4), and 5 is forward and backward. Translation components 1 (2), 2 (3), 3 (4), and 4 (5) are existing translation components, which can be lead screw type translation components or consist of a slider and an electrically operated telescopic rod that drives the slider.

[0054] Optionally, the conveying mechanism includes: an auxiliary roller 10 fixedly installed at the point where the laser transparent film enters and exits the outer casing 1; a correction roller 11 installed below the laser transparent film inside the outer casing 1; the front and rear ends of the correction roller 11 are installed on two support boxes 12 (the correction mechanism includes the correction roller 11 and the support boxes 12); and the support boxes 12 are connected to the inner walls of the front and rear sides of the outer casing 1.

[0055] The light source module 6 and the light receiving module 7 can be set as two sets with a front-to-back interval. In the initial state, one set of light source modules 6 and light receiving modules 7 is located at the front edge of the laser transparent film, and the other set of light source modules 6 and light receiving modules 7 is located at the rear edge of the laser transparent film.

[0056] The winding device includes: a support platform 8, a winding roller 9, and an auxiliary roller 10;

[0057] A support platform 8 is fixedly installed on the left outer wall of the outer casing 1. A winding roller 9 (driven by a winding drive motor) is installed on the support platform 8. A laser transparent film is wound on the winding roller 9. The laser transparent film penetrates the outer casing 1. An auxiliary roller 10 is fixedly installed at the point where the laser transparent film enters and exits the outer casing 1.

[0058] The working principle and beneficial effects of the above technical solution are as follows:

[0059] In the initial state, the light source module 6 and the light receiving module 7 are moved by translation component 1 2, translation component 2 3, translation component 3 4, and translation component 4 5. Based on the difference in light signal information (such as intensity) collected by the first acquisition module and the second acquisition module at different positions, the offset of the laser transparent film can be determined.

[0060] Laser-etched transparent films refract different colors of light at different angles. Therefore, we can utilize this principle by adding two visible light sources and determining material boundaries by receiving all three types of light. To achieve this, we need to replace the receiving lamp with a full-spectrum lamp. When the material is positioned between the sensor's emitting and receiving lamps, the MCU collects and records the signal values ​​of the three light sources. When the material boundary appears in the middle, the MCU shows changes in the signal values ​​of the three wavelengths. By calculating the trend of these signal changes, the material boundary can be inferred, thus achieving the purpose of material edge detection. Afterward, the driver motor can be controlled to push the material to the center of the roller.

[0061] 1. The original light source was a single infrared light, which did not clearly indicate the boundary changes of transparent materials. By adding multiple light sources, we can confirm the boundary changes of materials through multiple channels, and further improve the recognition accuracy by observing trend changes.

[0062] 2. It overcomes the limitations of previous infrared polarization correction sensors on materials, enabling them to meet more material polarization correction needs.

[0063] 3. Multiple light sources can better filter out external interference from the environment that may affect the sensor.

[0064] 4. The laser transparent film is wound on the winding roller 9, which facilitates the winding of the laser transparent film and provides a certain horizontal tension. The auxiliary roller 10 can effectively prevent the laser transparent film from scratching the wall of the outer box 1 when it enters and exits the outer box 1, and plays the role of supporting the laser transparent film.

[0065] Example 2, based on Example 1, further includes the following offset detection mechanism:

[0066] An environmental monitoring unit is used to monitor environmental information inside the outer casing 1.

[0067] In the first calculation unit, during the winding process of the laser transparent film, the control device controls the operation of the light source module 6, the light receiving module 7, the first acquisition module, and the second acquisition module in real time or periodically, and calculates the initial offset evaluation result of each light source when it is not offset based on the first calculation unit.

[0068] The first calculation unit is based on the following formula:

[0069] ;

[0070] This is the initial offset evaluation result based on the j-th light source without offset. The signal intensity of the j-th light source received by the light receiving module 7 from the second acquisition module when there is no offset; The signal intensity of the j-th light source emitted by the light source module 6 is acquired by the first acquisition module when there is no offset; M is the total amount of environmental information. The influence coefficient of the deviation of the actual value of the i-th type of environmental information collected by the current environmental detection unit from the standard value of the i-th type of environmental information on the signal of the j-th type of light source (the value is greater than -1 and less than 1; there is a preset influence coefficient corresponding to the deviation range of the actual value of the i-th type of environmental information collected by the current environmental detection unit from the standard value of the i-th type of environmental information).

[0071] The first alarm unit is used to trigger an alarm when the offset evaluation result based on any light source is less than the corresponding first preset value.

[0072] The working principle and beneficial effects of the above technical solution are as follows:

[0073] Based on the different environmental information, the initial offset assessment result before offset is determined to ensure that the initial offset assessment result before offset is reliable. The initial offset assessment result before offset is used as the basis for subsequent offset assessments, thus ensuring the reliability of the final offset assessment.

[0074] Example 3, based on Example 1 or 2, further includes:

[0075] The memory stores the historical detection results of the offset detection mechanism. The historical detection results include: the historical initial offset evaluation results of each light source of the current type of laser transparent film and the corresponding historical detection results of the environmental detection unit (the environmental detection unit detects each light source when obtaining the historical initial offset evaluation results, and obtains the environmental information when calculating the historical initial offset evaluation results), and the intensity decay state coefficient of the current type of light source module 6 with the time of use.

[0076] The selection unit is used to select the historical initial offset evaluation result (which can be the same light source module 6) of the environmental detection unit when there is no offset, which corresponds to the historical detection result of the environmental detection unit with a similarity greater than the second preset value. This is the target historical initial offset evaluation result (there are multiple target historical initial offset evaluation results). That is, historical initial offset evaluation results with large differences between environmental detection information and current environmental information are excluded, the influence of environmental differences is minimized, and reliable evaluation is ensured.

[0077] The second calculation unit is used to calculate the unreliability coefficient of the light source offset evaluation results;

[0078] ;

[0079] Let be the unreliability coefficient of the offset evaluation result for the j-th light source; This represents the initial offset evaluation result when the detection is based on the j-th light source and the current state is not offset. The total number of historical target offset evaluation results without offset, corresponding to the current environmental detection unit detection result of the j-th light source; This represents the initial offset evaluation result of the target history when it is not offset, corresponding to the j-th light source. The first evaluation weight (with a value greater than 0 and less than 1). This is the second evaluation weight (with a value greater than 0 and less than 1). The intensity decay state coefficient corresponding to the current usage time of the current type of light source module (6);

[0080] The second alarm unit will sound an alarm when the unreliability coefficient of the offset evaluation result of any light source in the light source module 6 is greater than or equal to the corresponding third preset value, reminding the user to replace the light source module 6.

[0081] The working principle and beneficial effects of the above technical solution are as follows: due to different environmental conditions, the ratio of the intensity of each light source acquired by the first acquisition module and the second acquisition module may change.

[0082] Comparison of the initial offset assessment result when the light source is currently not offset with the historical initial offset assessment result when it is not offset, based on the current environmental state. The system comprehensively assesses the unreliability coefficient of the light source's offset assessment result by considering the attenuation state caused by the current usage time of the light source. This ensures that when the initial offset assessment result before the current offset is significantly different from the historical initial offset assessment result before the current offset is matched with the current environmental state, and when the attenuation state coefficient of the current usage time of the light source module 6 is large, an alarm is triggered in a timely manner to remind the user to replace the light source module 6, thus ensuring the reliability of the detection results.

[0083] Example 4, based on any one of Examples 1-3, further includes the offset detection mechanism as follows:

[0084] The coordinate system construction unit takes the center of the contact surface between the light receiving module 7 and the moving end of the translation component 2 as the origin, the left and right directions as the X direction, and the front and back directions as the Y direction to construct the target coordinate system. The transmission direction of the transmission mechanism is the left and right direction.

[0085] The first division unit is used to divide the left-right offset detection range into several sub-detection ranges by the front-back dividing lines and number them.

[0086] ;

[0087] N is the total number of sub-detection ranges. The symbol for rounding up is 'ln'; 'ln' is the natural logarithm, and 'e' is the natural constant. The maximum historical deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism; The historical minimum deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism. The diameter of each light source;

[0088] The first building unit, when the first alarm unit alarms, controls translation component 4 5 and translation component 2 3 to move within the current sub-detection range at a first rated speed within a preset forward and backward displacement range (the control device can pause the winding device or not pause it as needed). The first building unit constructs a forward and backward coordinate curve of each light source in the current sub-detection range and the signal intensity curve of the light source received by the receiving module. Then, the control device controls translation component 3 4 and translation component 1 2 to move to the next sub-detection range, and controls translation component 4 5 and translation component 2 3 to move within the next sub-detection range at a first rated speed within a preset forward and backward displacement range. The first building unit constructs a forward and backward coordinate curve of each light source in the next sub-detection range and the signal intensity curve of the light source received by the receiving module. Finally, the forward and backward coordinate curve of each light source in each sub-detection range and the signal intensity curve of the light source received by the receiving module are obtained.

[0089] The offset evaluation module is used to evaluate the offset status of each sub-detection range based on the forward and backward coordinates of each light source within each sub-detection range and the signal intensity curve of the light source received by the receiving module.

[0090] Preferably, the offset evaluation module includes:

[0091] The first determining unit is used to determine the first abscissa (front-back direction coordinate) of each light source in each sub-detection range. In the signal intensity curve of the light source received by the receiving module, the position where the signal intensity of the light source received by the receiving module is closest to the signal intensity of the light source received by the receiving module when the laser transparent film is not blocked is determined. The average value of the first abscissa of each light source in each sub-detection range is determined as the target abscissa. When the first abscissa of any light source in each sub-detection range is not within the standard abscissa range when there is no offset, it is determined that the laser transparent film in the corresponding sub-detection range has an offset, and the number of the sub-detection range with the offset is determined.

[0092] The marking unit is used to mark target points in sub-detection ranges where there is an offset in the target coordinate system. The x-coordinate of the marked target point in the sub-detection range with an offset is the x-coordinate of the target in the corresponding sub-detection range, and the y-coordinate is the y-coordinate of the midpoint of the sub-detection range.

[0093] The second determining unit connects the target points sequentially, determines the offset region, and determines the target parameters of the offset region. The target parameters of the offset region include: the width of the offset region in the left and right directions, the width of the offset region in the front and back directions, the number of the offset region, and the first horizontal coordinate of the offset region.

[0094] The support box can be slidably installed inside the outer box. The support box is driven to move horizontally in the left and right directions by a translation drive device (such as an electric telescopic rod). During correction, the support box can be moved left and right to make the left and right coordinates of the axis of the correction roller 11 parallel to the midpoint of the left and right directions of the entire offset area.

[0095] Based on the target parameters of the offset region, the correction parameters of the correction roller 11 can be determined (the standard parameters of the correction roller 11 that are compatible with the target parameters of the offset region can be preset) to ensure appropriate correction force and correction speed, so as to adapt to the current distribution state of the offset region and also to the winding speed of the winding device, thus ensuring the correction effect.

[0096] The working principle and beneficial effects of the above technical solution are as follows:

[0097] 1. The first dividing unit is used to divide the offset detection range in the left and right directions into several sub-detection ranges by the dividing lines in the front and back directions and number them; thereby facilitating the segmented determination of the offset state of each segment of the sub-detection range; and determining an appropriate number of sub-detection ranges based on the formula, so as to facilitate the determination of the working parameters of the correction roller 11 according to the offset state and position of the sub-detection ranges.

[0098] 2. Construct the forward and backward coordinates of each light source within the current sub-detection range using the first construction unit, along with the signal intensity curve of the light source received by the receiving module (the forward and backward coordinates of the light source – real-time offset evaluation result curve, real-time offset evaluation result). ; , The signal intensity of the j-th light source received by the optical receiving module 7 in real time is collected by the second acquisition module. The signal intensity of the j-th light source emitted by the light source module 6 is collected in real time by the first acquisition module; to facilitate obtaining the change state of the signal intensity of the light source in each sub-detection range, thereby determining the boundary of the laser transparent film (the laser transparent film boundary does not block the light source), determining the offset state of the laser transparent film in each sub-detection range, and determining the number of the sub-detection range with offset.

[0099] An offset region is constructed based on the numbering of the sub-detection ranges with offset and the target points. Based on the target parameters of the offset region, the adjustment parameters of the support roller for the offset region can be determined. Based on the target parameters of the offset region, the correction parameters of the correction roller 11 can be determined (the standard parameters of the correction roller 11 that are compatible with the target parameters of the offset region can be preset), ensuring appropriate correction force and correction speed to adapt to the current distribution state of the offset region, and also to adapt to the winding speed of the winding device, ensuring the correction effect.

[0100] Example 5, based on any one of Examples 1-4, further includes a cleaning device, the cleaning device comprising:

[0101] Cleaning roller 22 is connected inside the outer housing 1 and is located near the feed inlet of the outer housing 1;

[0102] Mounting plate 23 is fixedly installed on the right side wall inside the outer casing 1. A vertically installed electric telescopic rod 25 is fixedly installed on the mounting plate 23. The electric telescopic rod 25 is fixedly connected to the buffer box 27. A connecting rod 28 passes through the buffer box 27. A limiting block is connected to the end of the connecting rod 28. A cleaning head 30 is connected to the other side of the connecting rod 28 between the buffer box 27 and the cleaning head 30. A return spring 29 is sleeved on the connecting rod 28 between the buffer box 27 and the cleaning head 30. The two ends of the return spring 29 are fixedly connected to the buffer box 27 and the cleaning head 30, respectively.

[0103] The working principle and beneficial effects of the above technical solution are as follows:

[0104] The cleaning roller 22 is installed below the laser transparent film. A cleaning soft brush can be detachably installed on the cleaning roller 22, which can effectively clean the bottom of the laser transparent film. The cleaning head 30 connected to the electric telescopic rod 25 is installed above the laser transparent film. By controlling the extension or retraction of the electric telescopic rod 25, the cleaning head 30 can effectively clean the top of the laser transparent film. The cleaning roller 22 and the cleaning head 30 work together to complete the cleaning of the laser transparent film.

[0105] Example 6, based on any one of Examples 1-5, such as Figure 2 As shown, the light source module 6 includes: a vertical connecting column 13, a conical body 14 disposed on the upper part of the vertical connecting column 13, and a mounting block 15 integrally disposed on the lower end of the vertical connecting column 13, with the light source body mounted on the lower end of the mounting block 15; the vertical distance between the upper end of the conical surface of the conical body 14 and the vertical axis of the conical body 14 is less than the vertical distance between the lower end of the conical surface of the conical body 14 and the vertical axis of the conical body 14; an arc-shaped groove 17 is disposed around the upper four sides of the vertical connecting column 13 below the conical body 14; the correction device for the laser transparent film also includes a multi-functional mounting device, which includes:

[0106] The upper end of the connecting box 18 is fixedly connected to the lower end of the translation component 2 3, and the lower end of the connecting box 18 is open.

[0107] Four sets of clamping components are arranged at intervals along the circumference of the vertical connecting column 13. The clamping components include: a connecting rod 19, which includes an integrally formed horizontal block 20 and a vertical rod 24 on the outside of the horizontal block 20. The inner side of the horizontal block 20 is set as an arc surface, which is used to connect to the arc groove 17. The horizontal block 20 is fixedly connected to the inner wall of the connecting box 18 with a spring 21. The inner side of the vertical rod 24 on the left and right sides is connected to a cooling fan 33 (which can be a miniature cooling fan). The corresponding side wall of the connecting box 18 is provided with a storage groove 34 for storing the cooling fan 33.

[0108] Two sets of symmetrical fall arrestor components correspond to the clamping components on the left and right sides, respectively. The fall arrestor component on the left side includes: a gear 26, which is connected to the outer wall of the left side of the connecting box 18; a first meshing tooth is provided at the upper end of the horizontal block 1 20; a second horizontal block 2 31 slides through the left side wall of the connecting box 18; a second meshing tooth is provided at the lower end of the horizontal block 2 31; the gear 26 meshes between the first meshing tooth and the second meshing tooth; an L-shaped block 32 is fixedly connected to the lower end of the horizontal block 2 31; a pad 16 is detachably connected to the upper end of the horizontal section of the L-shaped block 32 (or a vertical screw is rotatably connected to the lower end of the pad 16, and the vertical screw is threadedly connected to the horizontal section of the L-shaped block 32; the horizontal section of the L-shaped block 32 is provided with a groove for the pad 16 to be lowered and inserted into; the height of the pad 16 can be adjusted by rotating the vertical screw).

[0109] The working principle and beneficial effects of the above technical solution are as follows:

[0110] 1. In the initial state, the L-shaped block 32 is located outside the vertical connecting post 13 and does not affect the insertion of the vertical connecting post 13 into the connecting box 18, and the cooling fan 33 is stored in the storage groove 34, thus protecting the cooling fan 33;

[0111] 2. During connection, the left horizontal block 20 is located to the right of the left end of the left cone 14 (the right horizontal block 20 is located to the left of the right end of the right cone 14). The vertical connecting post 13 is inserted from bottom to top into the connecting box 18. The cone surface of the cone 14 squeezes the horizontal blocks 20 away from each other. When the vertical connecting post 13 is inserted into the arc groove 17 and faces the arc surface, the arc surface connects to the arc groove 17. At this time, the spring 21 is still in a compressed state, so that the horizontal blocks 20 press against the vertical connecting post 13 around the perimeter, thereby achieving lateral limitation of the vertical connecting post 13.

[0112] Furthermore, as each horizontal block 20 moves away from each other, the two connecting rods 19 on the left and right also move away from each other, causing the cooling fan 33 to move away from the storage groove 34, thus enabling it to dissipate heat from the light source body below the cooling fan 33.

[0113] 3. When the arc-shaped surface is connected to the arc-shaped groove 17, the upper end of the vertical connecting column 13 contacts the upper inner wall of the connecting box 18. While the above-mentioned horizontal blocks 20 move away from each other, the gear 26 causes the left and right horizontal blocks 20 to move closer to each other, so that the left and right L-shaped blocks 32 move closer to each other. The horizontal section of the L-shaped block 32 is located inside the mounting block 15, and the pad 16 can be connected to the horizontal section of the L-shaped block 32, so that the pad 16 supports the lower end of the mounting block 15 to prevent it from falling and ensures the stability of the light source module.

[0114] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A deviation correcting device for a laser transparent film, characterized by: include: The system includes a conveying mechanism, an offset detection mechanism, and a correction mechanism. The offset detection mechanism and the correction mechanism are mounted on the conveying mechanism. The control device is electrically connected to the offset detection mechanism and the correction mechanism, respectively. The offset detection mechanism performs offset detection based on several light sources, including visible light. The conveying mechanism includes: an outer casing (1), on one side of which a winding device is fixedly connected; the length of the laser transparent film is in the left-right direction; and the offset detection mechanism includes: Translation component 1 (2) is connected to the upper part of the outer casing (1). The moving end of translation component 1 (2) is connected to translation component 2 (3). The moving end of translation component 2 (3) is connected to the light source module (6). The light source module (6) is used to emit three sets of light, including visible light. Translation component three (4) is connected to the lower end of the outer casing (1). The moving end of translation component three (4) is connected to translation component four (5). The moving end of translation component four (5) is connected to light receiving module (7). Light receiving module (7) is used to receive three sets of light after passing through the laser transparent film. The three sets of light include visible light. Light receiving module (7) is located directly below light source module (6). The first acquisition module is used to receive the light signal information emitted by the light source module (6); The second acquisition module is used to acquire the optical signal information received by the optical receiving module (7); The control device is electrically connected to translation component 1 (2), translation component 2 (3), translation component 3 (4), translation component 4 (5), the first acquisition module, and the second acquisition module. The control device controls translation component 1 (2) and translation component 3 (4) to move synchronously and controls translation component 2 (3) and translation component 4 (5) to move synchronously. The movement direction of translation component 1 (2), translation component 3 (4), translation component 2 (3), and translation component 4 (5) is the forward and backward direction. The offset detection mechanism also includes: An environmental monitoring unit is used to monitor the environmental information inside the outer casing (1); In the first calculation unit, during the winding process of the laser transparent film, the control device controls the light source module (6), the light receiving module (7), the first acquisition module, and the second acquisition module to work in real time or periodically, and calculates the initial offset evaluation result of each light source when it is not offset based on the first calculation unit; The first calculation unit is based on the following formula: ； is the initial offset evaluation result of the jth light source when there is no offset, is the signal strength of the jth light source received by the light receiving module (7) collected by the second collection module when there is no offset; is the signal strength of the jth light source emitted by the light source module (6) collected by the first collection module when there is no offset; M is the total number of environmental information; is the influence coefficient of the deviation of the actual value of the ith environmental information collected by the current environmental detection unit relative to the standard value of the ith environmental information on the signal of the jth light source. The first alarm unit is used to trigger an alarm when the offset evaluation result based on any light source is less than the corresponding first preset value.

2. The correction device for laser transparent film according to claim 1, characterized in that: Also includes: The memory stores the historical detection results of the offset detection mechanism. The historical detection results include: the historical initial offset evaluation results of each light source of the current type of laser transparent film and the corresponding historical detection results of the environmental detection unit, and the intensity decay state coefficient of the current type of light source module (6) with the time of use. The selection unit is used to select the historical initial offset evaluation result without offset that corresponds to the historical detection result of the environmental detection unit with a similarity greater than the second preset value to the current environmental detection unit detection result, and use it as the target historical initial offset evaluation result. The second calculation unit is used to calculate the unreliability coefficient of the light source offset evaluation results; ； Let be the unreliability coefficient of the offset evaluation result for the j-th light source; This represents the initial offset evaluation result when the detection is based on the j-th light source and the current position is not offset. The total number of historical target offset evaluation results without offset, corresponding to the current environmental detection unit detection result of the j-th light source; This represents the initial offset evaluation result of the target history when it is not offset, corresponding to the j-th light source. As the first evaluation weight, As the second evaluation weight; The intensity decay state coefficient corresponding to the current usage time of the current type of light source module (6); The second alarm unit will issue an alarm when the unreliability coefficient of the offset evaluation result of any light source in the light source module (6) is greater than or equal to the corresponding third preset value, reminding the user to replace the light source module (6).

3. The correction device for laser transparent films according to claim 1, characterized in that: The offset detection mechanism also includes: The coordinate system construction unit takes the center of the contact surface between the light receiving module (7) and the moving end of the translation component (3) as the origin, the left and right directions as the X direction, and the front and back directions as the Y direction to construct the target coordinate system. The transmission direction of the transmission mechanism is the left and right direction. The first division unit is used to divide the left-right offset detection range into several sub-detection ranges by the front-back dividing lines and number them. ； N is the total number of sub-detection ranges. The symbol for rounding up is 'ln'; 'ln' is the natural logarithm, and 'e' is the natural constant. The maximum historical deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism; The historical minimum deviation length of the laser transparent film on the left and right sides of the current laser transparent film conveying mechanism. The diameter of each light source; The first building unit, when the first alarm unit alarms, controls the translation component four (5) and translation component two (3) to move at a first rated speed within the preset front-back direction displacement range of the current sub-detection range. The first building unit constructs the front-back direction coordinates of each light source in the current sub-detection range and the signal intensity curve of the light source received by the receiving module. Then the control device controls the translation component three (4) and translation component one (2) to move to the next sub-detection range, controls the translation component four (5) and translation component two (3) to move at a first rated speed within the preset front-back direction displacement range of the next sub-detection range, and constructs the front-back direction coordinates of each light source in the next sub-detection range and the signal intensity curve of the light source received by the receiving module. Finally, the front-back direction coordinates of each light source and the signal intensity curve of the light source received by the receiving module are obtained in each sub-detection range. The offset evaluation module is used to evaluate the offset status of each sub-detection range based on the forward and backward coordinates of each light source within each sub-detection range and the signal intensity curve of the light source received by the receiving module.

4. The correction device for laser transparent film according to claim 1, characterized in that: The conveying mechanism includes: an auxiliary roller (10) fixedly installed at the point where the laser transparent film (9) enters and exits the outer box (1); a correction roller (11) installed below the laser transparent film (9) inside the outer box (1); the correction roller (11) is installed on two support boxes (12) at both ends; and the support boxes (12) are connected to the inner walls of the front and rear sides of the outer box (1).

5. The correction device for laser transparent film according to claim 4, characterized in that: It also includes a cleaning device, which comprises: Cleaning roller (22) is connected inside the outer casing (1) and close to the feed inlet of the outer casing (1); Mounting plate two (23) is fixedly installed on the right side wall inside the outer casing (1). A vertically installed electric telescopic rod (25) is fixedly installed on the mounting plate two (23). The electric telescopic rod (25) is fixedly connected to the buffer box (27). A connecting rod two (28) passes through the buffer box (27). A limiting block is connected to the end of the connecting rod two (28). A cleaning head (30) is connected to the other side of the connecting rod two (28). A return spring (29) is sleeved on the connecting rod two (28) between the buffer box (27) and the cleaning head (30). The two ends of the return spring (29) are fixedly connected to the buffer box (27) and the cleaning head (30) respectively.

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