Flexible adjusting roller device

Abstract

The invention relates to a flexible adjusting roller device, and belongs to the technical field of film winding equipment, the device comprises a roller body and a force arm mechanism, the roller body is used for applying pressure to an isolating film material roll to flatten wrinkles and lump protrusions, the force arm mechanism comprises a force arm plate, a bearing and a rotating shaft, the force arm plate and the rotating shaft rotate relatively through the bearing, and the rotating shaft rotates relative to the bearing. The force arm mechanisms are installed at the two ends of the roller body in a mirror symmetry mode, so that relative rotation between the roller body and the force arm mechanisms is achieved, the tail ends of the two corresponding force arm plates are fixedly connected with piston rods of the low-friction air cylinder mechanisms, and the control mechanism drives the piston rods to do linear motion and drives the force arm plates to do arc track swing motion around the axis of a rotating shaft. And then the roller body is driven to rotate relative to the rotating center on the force arm mechanism, so that the roller body applies proper pressure to the isolating membrane material roll, the isolating membrane is kept flat in the rolling process, and the rejection rate caused by wrinkles and bulges is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of film winding equipment, and in particular to a flexible adjusting roller device. Background Art

[0002] In the production process of lithium batteries, the winding link of the separator is very important. When the current common lithium battery separator automatic winding equipment is about to be full of material, it is necessary to manually install the empty roll with double-sided tape on the waiting shaft, and then the winding mechanism will automatically turn over, and the adhesive roller mechanism will press the separator onto the empty roll. The cutter will quickly connect the film to the empty roll and start to reel in the new roll. However, as the equipment speed increases to 200m / min, many problems have gradually become prominent, seriously affecting the stability of the equipment and the winding quality. On the one hand, during the automatic splicing process, the length of the tail material between the cutting point of the cutter and the pressure point of the adhesive roller is 150mm-200mm. After cutting, the tail material is not controlled and is prone to folding and clumping, which will lead to The film surface is bulging and wrinkled; on the other hand, the isolation film has a low winding tension, and the bulges of the roll cannot be eliminated automatically. The bulges accumulate to form irregular hard bulges, causing the isolation film to shrink too much in the width direction; in addition, when winding at high speed, the end face of the roll will also have varying degrees of misalignment of 10mm-30mm, which not only causes the slitting process to waste the finished film area, but may even make the entire roll of film unable to pass the CCD detection of the slitting machine. The traditional mechanism relies on the motor screw to approach the roller structure, and only winds by adjusting the fixed distance, without auxiliary smoothing of the film surface. Once wrinkles appear, the entire roll of material cannot be eliminated from beginning to end, which greatly increases the number of meters of scrapped film material during winding.

[0003] Therefore, it is necessary to provide a flexible adjusting roller device to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a flexible adjusting roller device to solve the above technical problems.

[0005] To achieve the above object, the present invention provides the following technical solutions: A flexible adjusting roller device, comprising The roller is used to apply pressure to the release film roll during the release film winding process to flatten its wrinkles and lumpy protrusions; The lever mechanism includes a lever plate, a bearing and a rotating shaft. A stepped bearing seat consisting of a stepped through hole is opened in the middle section of the lever plate. The outer periphery of the bearing is installed tightly against the inner end surface of the stepped bearing seat. One end of the rotating shaft is provided with a limiting shoulder. The limiting shoulder passes through the inner periphery of the bearing and abuts against the inner peripheral surface of the bearing. The other end of the rotating shaft is fixedly mounted on the frame. The lever plate and the rotating shaft achieve relative rotation through the bearing. The stepped bearing seat is the rotation center of the lever plate. There are two force arm mechanisms, which are mirror-symmetrically mounted at both ends of the roller body. The top ends of the corresponding two force arm plates are fixed with bearing seats. The bearing seats cooperate with the self-aligning ball bearings arranged at both ends of the roller body to achieve relative rotation between the roller body and the force arm mechanism. The ends of the corresponding two force arm plates are connected to the Y-type joints through the shoulder hinge pins. The Y-type joints are fixed to the piston rod of the low-friction cylinder mechanism. The low-friction cylinder mechanism is electrically connected to the control mechanism and drives the piston rod to move linearly. The shoulder hinge pin is pushed through the Y-type joint, driving the force arm plate to swing in a circular arc trajectory around the axis of the rotating shaft, thereby driving the roller body to rotate relative to the rotation center on the force arm mechanism.

[0006] Furthermore, the low-friction cylinder mechanism is fixedly mounted on the frame, and an electrical proportional valve electrically connected to the control mechanism is provided in the low-friction cylinder mechanism for controlling the output thrust of the piston rod, thereby controlling the pressure of the roller on the isolation film roll.

[0007] Furthermore, the rotation center distance between the bearing seat and the lever arm plate is L1, and the rotation center distance between the shoulder hinge pin and the lever arm plate is L2, where L1=2L2, that is, the lever arm plate and the piston rod form a lever ratio of 1:2. When the piston rod outputs a thrust F, the pressure of the roller body on the isolation film roll is F / 2.

[0008] Furthermore, the input end of the flexible adjusting roller device is provided with a plurality of conveying rollers, and the output end is provided with a winding mechanism, the conveying rollers are used to convey the isolation film to the winding mechanism for collection, and a cutting mechanism is provided between the winding mechanism and the flexible adjusting roller device for cutting the isolation film; The reel is connected to the reel by a plurality of movable members, and the movable members are connected to the reel to form a reel. The reel is connected to the reel by a plurality of movable members. The movable members are connected to the reel to form a reel. The reel is connected to the reel by a plurality of movable members. If the winding shaft of the current working position is located within the working position angle range β of the flexible adjustment roller device, that is, |β|≤50°, the outer peripheral surface of the roller body is pressed against the surface of the film roll of the winding shaft of the current working position. When the winding shaft of the current working position moves out of the working position angle range β as the cantilever rotates, the roller body immediately breaks contact. The moment the new winding shaft enters the working position angle range β, the cutting mechanism synchronously cuts off the isolation film, and the roller body then comes into contact with the new winding shaft to continue the winding operation. The working position angle range β is the angle between the line connecting the axis of the roller body and the axis of the winding shaft of the current working position and the horizontal line.

[0009] Furthermore, two correcting rollers electrically connected to the control mechanism are provided directly above the conveying roller, and the axes of the correcting rollers are parallel to the axes of the corresponding conveying rollers; the two correcting rollers are respectively located at the ends of the axial direction of the conveying roller, and the control mechanism drives the correcting rollers to perform self-rotation motion and up and down motion relative to the conveying roller.

[0010] Furthermore, the adjustment method of the flexible adjusting roller device includes the following steps: S1. Initial pressure setting: The constant output pressure P0 required by the flexible adjusting roller device is set according to the material properties of the isolation film and actual usage requirements. The control mechanism adjusts the output thrust of the piston rod according to the constant output pressure P0, so that the roller body of the flexible adjusting roller device applies the preset constant output pressure P0 to the isolation film roll; S2. Monitoring of radial difference of the roll: During the winding process, the diameter change of the isolation film roll of the current station winding shaft on the winding mechanism is monitored in real time by a laser diameter gauge, and the radial deviation ΔD is calculated, that is, ΔD=D max -D min , where D max D is the maximum axial diameter of the isolation film roll of the current station reel. min The minimum axial diameter of the isolation film roll of the reel at the current station; S3, roller stroke adaptive adjustment: When it is detected that the radial deviation ΔD of the isolation film roll exceeds the threshold, it indicates that the isolation film roll has obvious unequal diameter phenomenon. The control mechanism adjusts the roller stroke adaptively according to the real-time measurement of D. max and D min The control mechanism drives the piston rod of the low-friction cylinder mechanism to perform telescopic movement, and independently adjusts the spatial positions of the left and right ends of the roller body, so that the roller body always contacts the surface of the isolation film roll with the constant output pressure P0.

[0011] Furthermore, the method further includes a deflection correction and adjustment step: using an infrared sensor to measure in real time whether the isolation film is deflected on the conveying roller, as well as the magnitude and direction of the deflection; based on the data fed back by the infrared sensor, the control mechanism determines whether there is deflection; if the deflection of the isolation film is within a set threshold, the control mechanism continues monitoring without responding; if the deflection of the isolation film exceeds the set threshold, the deflection correction and adjustment operation is initiated; When it is detected that the offset of the isolation film exceeds a set threshold, the control mechanism corrects the offset isolation film by adjusting the up and down movement and rotation speed of the two correction rollers, specifically: When it is found that the isolation film is deflected to one side, the control mechanism drives the two correcting rollers to move downward until the outer periphery of the correcting roller is in close contact with the upper surface of the isolation film to apply friction to the isolation film. The control mechanism dynamically adjusts the rotation speed of the two correcting rollers according to the deflection direction and amplitude of the isolation film to apply different friction forces to the two edges of the isolation film. The friction force of the correcting roller close to the edge of the isolation film with a higher linear speed on the isolation film is greater than the friction force of the correcting roller close to the edge of the isolation film with a lower linear speed on the isolation film. The infrared sensor continuously monitors the position of the isolation film and the relative position of the winding shaft until the deflection caused by the inconsistent linear speed of the two edges of the isolation film is eliminated. The control mechanism controls the correcting roller to stop rotating and drives the correcting roller away from the conveying roller to return to the initial position.

[0012] Furthermore, the offset of the isolation film is set to Δx, the initial rotation speed of the correction roller is v0, v0 is consistent with the preset transmission speed of the isolation film, and the adjusted rotation speeds of the two correction rollers are set to v1 and v2, where v1>v2, that is, the rotation speed difference of the two correction rollers Δv=v1-v2, where the offset of the isolation film Δx is proportional to the rotation speed difference Δv of the two correction rollers, and the relationship can be obtained:

[0013] Wherein, k' is a proportional coefficient determined according to the isolation film characteristics and has a value range of 0.1-1.0; the rotational speeds of the two correcting rollers after adjustment are v1=v0+Δv / 2; v2=v0-Δv / 2.

[0014] Furthermore, the proportional coefficient k' is determined based on the contact force N and the friction coefficient μ between the deflection correction roller and the isolation film. The friction difference ΔF between the two deflection correction rollers and the isolation film is ΔF = μN (v1-v2). Since the offset of the isolation film relative to the conveying roller is caused by the different linear speeds of the two edges of the isolation film, the friction difference ΔF is proportional to the offset Δx. The proportional relationship coefficient C between the friction difference ΔF and the offset Δx is determined through experiments. It can be obtained that the friction difference ΔF and the offset Δx satisfy the relationship: Δx = C×ΔF = C×μN (v1-v2) = C×μN×Δv, then k' = C×μN.

[0015] Furthermore, the control mechanism in step S3 adjusts the spatial position of the left and right ends of the roller body with the goal of dynamically adapting the surface profile of the roller body to the current radial deviation shape of the isolation film roll while always keeping the contact pressure of the roller body on the isolation film roll constant at a preset constant output pressure P0.

[0016] In summary, compared with the prior art, the present invention has the following beneficial effects: The flexible adjustment roller device of the present invention realizes precise pressure control through the lever arm mechanism. The stepped bearing position in the middle section of the lever arm plate is tightly matched with the bearing. The rotating shaft realizes axial positioning through the limiting shoulder to ensure the stability of the rotation center. The two mirror-symmetrical lever arm mechanisms make the two ends of the roller body move synchronously to avoid unbalanced load. The self-aligning ball bearing compensates for the installation error of the roller body. The shoulder hinge pin and Y-type joint convert the linear motion of the cylinder into the circular arc swing of the lever arm plate, and finally drives the roller body to apply pressure to the film roll to ensure that uniform pressure can be applied to the isolation film under different working conditions. Appropriate pressure is applied to the film roll by the roller body to ensure that the isolation film remains flat during the winding process, reducing the scrap rate caused by wrinkles and protrusions, and is used to solve the problem of wrinkling and poor curling alignment 200 meters before the automatic winding of the isolation film roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a flexible adjusting roller device of the present invention; Figure 2 An exploded view of the flexible adjusting roller device of the present invention; Figure 3 It is a schematic diagram of the positions of the flexible adjusting roller device, the winding mechanism and the cutting mechanism of the present invention; Among them, 1-flexible adjustment roller device, 11-roller body, 111-self-aligning ball bearing, 12-arm mechanism, 121-arm plate, 122-bearing, 123-rotating shaft, 124-step bearing position, 125-limiting shoulder, 13-bearing seat, 14-shoulder hinge pin, 15-Y-type joint, 16-low friction cylinder mechanism, 2-isolation film, 3-transfer roller, 4-winding mechanism, 41-rotating support seat, 42-cantilever, 43-transition roller, 44-winding shaft, 5-cutting mechanism. DETAILED DESCRIPTION

[0018] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments given here are only used to illustrate and explain the present invention and cannot be used to limit the present invention.

[0019] like Figures 1 to 3 As shown, a flexible adjusting roller device 1 includes The roller 11 is used to apply pressure to the release film roll during the release film winding process to flatten its wrinkles and lumpy protrusions; The lever mechanism 12 includes a lever plate 121, a bearing 122, and a rotating shaft 123. A stepped bearing seat 124 consisting of a stepped through hole is provided in the middle section of the lever plate 121. The outer periphery of the bearing 122 is mounted close to the inner end surface of the stepped bearing seat 124. A limiting shoulder 125 is provided at one end of the rotating shaft 123. The limiting shoulder 125 passes through the inner periphery of the bearing 122 and abuts against the inner peripheral surface of the bearing 122. The other end of the rotating shaft 123 is fixedly mounted on the frame. The lever plate 121 and the rotating shaft 123 achieve relative rotation through the bearing 122. The stepped bearing seat 124 is the rotation center of the lever plate 121. There are two force arm mechanisms 12, and the two force arm mechanisms 12 are respectively installed at the two ends of the roller body 11 in a mirror-symmetrical manner. The top ends of the corresponding two force arm plates 121 are fixed with bearing seats 13. The bearing seats 13 cooperate with the self-aligning ball bearings 111 arranged at both ends of the roller body 11, so that relative rotation is achieved between the roller body 11 and the force arm mechanism 12. The ends of the corresponding two force arm plates 121 are connected to the Y-type joint 15 through the shoulder hinge pin 14. The Y-type joint 15 is fixed to the piston rod of the low-friction cylinder mechanism 16. The low-friction cylinder mechanism 16 is electrically connected to the control mechanism and drives the piston rod to move linearly. The shoulder hinge pin 14 is pushed through the Y-type joint 15, and the power arm plate 121 swings in a circular arc trajectory around the axis of the rotation axis 123, thereby driving the roller body 11 to rotate relative to the rotation center on the force arm mechanism 12.

[0020] The flexible adjustment roller device 1 achieves precise pressure control through the lever arm mechanism 12. The stepped bearing position 124 in the middle section of the lever arm plate 121 fits tightly with the bearing 122. The rotating shaft 123 achieves axial positioning through the limiting shoulder 125 to ensure the stability of the rotation center. The two mirror-symmetrical lever arm mechanisms 12 make the two ends of the roller body 11 move synchronously to avoid unbalanced loading. The self-aligning ball bearing 111 compensates for the installation error of the roller body 11. The shoulder hinge pin 14 and the Y-type joint 15 convert the linear motion of the cylinder into the circular arc swing of the lever arm plate 121, and finally drive the roller body 11 to apply pressure to the film roll, ensuring that uniform pressure can be applied to the isolation film 2 under different working conditions. Appropriate pressure is applied to the film roll by the roller body 11 to ensure that the isolation film 2 remains flat during the winding process, reducing the scrap rate caused by wrinkles and protrusions.

[0021] In actual operation, the flexible adjustment roller device 1 can adapt to isolation films 2 of different materials and thicknesses. For thinner or more sensitive film materials, the output thrust of the piston rod can be reduced to reduce the pressure applied by the roller body 11, ensuring that the film material is not damaged during the winding process; for thicker or harder film materials, sufficient pressure can be provided by increasing the thrust to ensure the winding quality, so that the flexible adjustment roller device 1 can maintain high efficiency in a variety of production environments, significantly improving the versatility and economy of the equipment.

[0022] Furthermore, the low-friction cylinder mechanism 16 is fixedly mounted on the frame. An electrical proportional valve electrically connected to the control mechanism is provided in the low-friction cylinder mechanism 16 for controlling the output thrust of the piston rod, thereby controlling the pressure of the roller body 11 on the isolation film roll.

[0023] An electrical proportional valve electrically connected to the control mechanism is provided inside to control the output thrust of the piston rod, thereby controlling the pressure of the roller 11 on the isolation film roll. Through the control of the electrical proportional valve, the pressure can be dynamically adjusted according to different working conditions to ensure the quality of winding.

[0024] Furthermore, the rotation center distance between the bearing seat 13 and the lever arm plate 121 is L1, and the rotation center distance between the shoulder hinge pin 14 and the lever arm plate 121 is L2, where L1=2L2, that is, the lever arm plate 121 and the piston rod form a 1:2 lever ratio. When the piston rod outputs a thrust F, the pressure of the roller body 11 on the isolation film roll is F / 2.

[0025] When the roller body 11 requires pressure P, since the lever arm plate 121 and the piston rod form a 1:2 lever ratio, the piston rod only needs to output a thrust of P / 2, which greatly reduces energy consumption, reduces wear of mechanical parts, and extends the service life of the equipment. At the same time, it improves the accuracy and flexibility of pressure control, can adapt to isolation membranes 2 of different materials and thicknesses, significantly improves production efficiency and product quality, and has extremely high economy and wide applicability.

[0026] Furthermore, the input end of the flexible adjusting roller device 1 is provided with a plurality of conveying rollers 3, and the output end is provided with a winding mechanism 4. The conveying rollers 3 are used to convey the isolation film 2 to the winding mechanism 4 for collection. A cutting mechanism 5 is provided between the winding mechanism 4 and the flexible adjusting roller device 1 for cutting the isolation film 2. The winding mechanism 4 includes a rotary support seat 41, a plurality of cantilevers 42, a plurality of transition rollers 43 and a plurality of winding shafts 44. The cantilevers 42 are radially distributed on the rotary support seat 41 and are in the same horizontal plane. The number of cantilevers 42 is equal to the sum of the number of transition rollers 43 and the winding shaft 44. The transition rollers 43 and the winding shaft 44 are alternately arranged at the ends of the plurality of cantilevers 42 and are rotatably connected to the cantilevers 42. The winding shaft 44 is electrically connected to the control mechanism. The control mechanism drives the winding shaft 44 to rotate at a set speed to complete the winding work. The rotary support seat 41 is connected to a driving component electrically connected to the control mechanism, which is used to drive the rotary support seat 41 to rotate and then drive the cantilevers 42 to rotate around the rotation center of the rotary support seat 41, driving the transition rollers 43 and the winding shaft 44 to alternately change positions; If the winding shaft 44 of the current working position is located within the working position angle range β of the flexible adjustment roller device 1, that is, |β|≤50°, the outer peripheral surface of the roller body 11 is pressed against the surface of the film roll of the winding shaft 44 of the current working position. When the winding shaft 44 of the current working position rotates and moves out of the working position angle range β with the cantilever 42, the roller body 11 immediately breaks contact. The moment the new winding shaft 44 enters the working position angle range β, the cutting mechanism 5 synchronously cuts off the isolation film 2, and the roller body 11 then comes into contact with the new winding shaft 44 to continue the winding operation. The working position angle range β is the angle between the line connecting the axis center of the roller body 11 and the axis center of the winding shaft 44 of the current working position and the horizontal line.

[0027] After the isolation film 2 is introduced through the conveyor roller 3, it is wound by the reel 44 of the current station in the reeling mechanism 4. The control mechanism synchronously drives the cantilever 42 to rotate continuously at a low speed around the rotation center of the rotary support seat 41, driving the transition roller 43 and the reel 44 to dynamically alternate positions relative to the conveyor roller 3. As the cantilever 42 rotates, the original reel 44 gradually moves to the unloading position away from the far end of the conveyor roller 3. The isolation film 2 film material is always close to the transition roller 43 to form a wrap angle. At the same time, the new reel 44 synchronously rotates to the preparatory position near the conveyor roller 3. When the reel 44 of the original reeling station reaches the set roll diameter, the cutting mechanism 5 cuts off the film material, and the flexible adjustment roller device 1 is pressed against the surface of the new reel 44, continuously applying pressure to eliminate the wrinkles of the isolation film 2, and then the next reeling cycle is carried out.

[0028] In the winding mechanism 4, the coordinated operation of the rotary support 41, cantilever 42, transition roller 43, and reel 44 achieves automation and efficiency during the winding process. The continuous low-speed rotation of the rotary support 41 drives the cantilever 42 around its center of rotation, allowing the transition roller 43 and reel 44 to alternate positions. This not only ensures the continuity of the winding process but also allows each reel 44 to perform the winding operation in the optimal position, improving winding efficiency and quality. Simultaneously, when one reel 44 completes its winding task and moves to the unloading position, the next reel 44 is already precisely positioned in the standby position. The cutting mechanism 5 instantly cuts the separator 2, and the roller 11 immediately engages the new reel 44, beginning the next winding cycle. The entire process seamlessly connects, significantly improving production efficiency and reducing downtime caused by reel changes. Furthermore, the separator 2 always maintains a close contact with the transition roller 43, forming a wrap angle, effectively preventing loosening and wrinkling of the film during transport and improving winding quality. In addition, the forced compaction of the flexible adjustment roller on the new winding shaft 44 ensures the firm fit of the ends of the film material, reduces the scrap rate caused by unstable splicing, and solves the problem of wrinkling and poor edge alignment of the isolation film roll 200 meters before the new roll is automatically wound.

[0029] Furthermore, two correcting rollers electrically connected to the control mechanism are provided directly above the conveying roller 3, and the axes of the correcting rollers are parallel to the axes of the corresponding conveying rollers 3; the two correcting rollers are respectively located at the ends of the axial direction of the conveying roller 3, and the control mechanism drives the correcting rollers to perform self-rotation motion and up and down motion relative to the conveying roller 3.

[0030] Through the dynamic adjustment of the correcting roller, the deviation of the isolation film 2 can be effectively corrected. When the isolation film 2 deviates, the two correcting rollers apply different friction forces to the two edges of the isolation film 2 at different speeds, thereby correcting the deviation and ensuring that the isolation film 2 remains flat during the winding process, effectively reducing wrinkles, looseness or damage caused by deviation, significantly reducing the scrap rate, improving production efficiency and product quality, and ensuring the stability and reliability of the entire winding process.

[0031] The adjustment method of the flexible adjusting roller device 1 comprises the following steps: S1. Initial pressure setting: Based on the material properties of the isolation film 2 and actual usage requirements, the constant output pressure P0 required by the flexible adjusting roller device 1 is set. The control mechanism adjusts the output thrust of the piston rod according to the constant output pressure P0, so that the roller body 11 of the flexible adjusting roller device 1 applies the preset constant output pressure P0 to the isolation film roll; S2. Monitoring of radial difference of the roll: During the winding process, the diameter change of the isolation film roll of the current station winding shaft on the winding mechanism 4 is monitored in real time by a laser diameter gauge, and the radial deviation ΔD is calculated, that is, ΔD=D max -D min , where Dmax D is the maximum axial diameter of the isolation film roll of the current station reel. min The minimum axial diameter of the isolation film roll of the reel at the current station; S3. Self-adaptive adjustment of roller stroke: When the radial deviation ΔD of the isolation film roll is detected to exceed the threshold, it indicates that the isolation film roll has obvious unequal diameter phenomenon. The control mechanism adjusts the roller stroke according to the real-time measurement of D. max and D min The value is used to calculate the compensation displacement required for the left and right ends of the roller body 11 relative to the surface of the isolation film roll. The control mechanism drives the piston rod of the low-friction cylinder mechanism 16 to perform telescopic movement, and independently adjusts the spatial position of the left and right ends of the roller body 11, so that the roller body 11 always contacts the surface of the isolation film roll with a constant output pressure P0.

[0032] The flexible adjustment roller device 1 can effectively flatten the wrinkles and lumpy protrusions of the isolation film roll through a preset constant output pressure P0, ensuring that the isolation film 2 remains flat during the winding process. At the same time, the device monitors the radial deviation of the roll in real time and dynamically adjusts the compensation displacement of the roller body 11 according to the radial deviation, thereby effectively correcting the unequal diameter problem of the roll and avoiding winding quality problems caused by uneven roll diameter. It significantly improves the winding quality, reduces the scrap rate, enhances the adaptability of the equipment to different materials and working conditions, and reduces energy consumption and equipment wear, thereby improving production efficiency and economic benefits.

[0033] Furthermore, the process further includes a deflection correction and adjustment step: using an infrared sensor to measure in real time whether the isolation film 2 is deflected on the conveying roller 3, as well as the magnitude and direction of the deflection; based on the data fed back by the infrared sensor, the control mechanism determines whether there is deflection; if the deflection of the isolation film 2 is within a set threshold, the control mechanism continues monitoring without responding; if the deflection of the isolation film 2 exceeds the set threshold, the deflection correction and adjustment operation is initiated; When it is detected that the offset of the isolation film 2 exceeds the set threshold, the control mechanism corrects the offset isolation film 2 by adjusting the up and down movement and rotation speed of the two correction rollers. Specifically: When it is found that the isolation film 2 is deflected to one side, the control mechanism drives the two correcting rollers to move downward until the outer periphery of the correcting rollers is close to the upper surface of the isolation film 2 to apply friction to the isolation film 2. The control mechanism dynamically adjusts the rotation speed of the two correcting rollers according to the deflection direction and amplitude of the isolation film 2 to apply different friction forces to the two edges of the isolation film 2. The friction force of the correcting roller close to the edge of the isolation film 2 with a higher linear speed on the isolation film 2 is greater than the friction force of the correcting roller close to the edge of the isolation film 2 with a lower linear speed on the isolation film 2. The infrared sensor continuously monitors the position of the isolation film 2 and the relative position of the winding shaft 44 until the deflection caused by the inconsistent linear speed of the two edges of the isolation film 2 is eliminated. The control mechanism controls the correcting roller to stop rotating and drives the correcting roller away from the conveying roller 3 to return to the initial position.

[0034] The dynamic calculation of the correction coefficient K is based on the real-time radial difference changes, making the pressure adjustment more accurate and efficient. By adjusting the pressure, the unevenness and waste of the isolation film 2 during the winding process are avoided. The speed and up and down movement adjustment of the correction roller are combined with the feedback of the infrared sensor to ensure that the dynamic adjustment of the isolation film 2 is more flexible and accurate. Through differential control, the two edges of the isolation film 2 are kept flat, effectively avoiding the offset, wrinkles and unevenness problems that occur during the winding process, so that the system can adaptively respond to changes in different materials and operating conditions, thereby improving the stability and automation level of the equipment.

[0035] Furthermore, the offset of the isolation film 2 is set to Δx, the initial rotation speed of the correction roller is v0, v0 is consistent with the preset transmission speed of the isolation film 2, and the adjusted rotation speeds of the two correction rollers are set to v1 and v2, where v1>v2, that is, the rotation speed difference of the two correction rollers Δv=v1-v2, where the offset of the isolation film 2 is Δx, which is proportional to the rotation speed difference Δv of the two correction rollers, and the relationship can be obtained:

[0036] Wherein, k' is a proportional coefficient, which is determined according to the characteristics of the isolation film 2 and has a value range of 0.1-1.0. The rotational speeds of the two correcting rollers after adjustment are v1=v0+Δv / 2 and v2=v0-Δv / 2.

[0037] Furthermore, the proportional coefficient k' is determined based on the contact force N and the friction coefficient μ between the deflection correction roller and the isolation film 2. The friction difference ΔF between the two deflection correction rollers and the isolation film 2 is ΔF = μN (v1-v2). Since the offset of the isolation film 2 relative to the conveying roller 3 is caused by the different linear speeds of the two edges of the isolation film 2, the friction difference ΔF is proportional to the offset Δx. The proportional relationship coefficient C between the friction difference ΔF and the offset Δx is determined through experiments. It can be obtained that the friction difference ΔF and the offset Δx satisfy the relationship: Δx = C×ΔF = C×μN (v1-v2) = C×μN×Δv, then k' = CμN.

[0038] The proportional relationship coefficient C is determined through experiments. An isolation membrane 2 tape of known material is selected, and the experimental device and operating conditions are ensured to be consistent. Without applying a corrective force, the initial offset of the tape is measured. An infrared sensor or laser rangefinder is used to accurately measure whether the tape is offset during transmission. By adjusting the rotation speed of the corrective roller, different rotation speed differences ΔV are applied, and the rotation speed difference applied each time is recorded. The friction force difference ΔF applied by the corrective roller on the tape is estimated by a force sensor or calculated torque, and the offset ΔX of the tape is measured after each application of a different rotation speed difference. The measured offset ΔX is compared with the corresponding friction force difference ΔF, and the proportional relationship coefficient C is obtained using regression analysis.

[0039] Furthermore, in step S3, the control mechanism adjusts the spatial position of the left and right ends of the roller body 11 with the goal of dynamically adapting the surface profile of the roller body 11 to the current radial deviation shape of the isolation film roll while always keeping the contact pressure of the roller body 11 on the isolation film roll constant at the preset constant output pressure P0.

[0040] In the area where the diameter of the isolation film roll is smaller, the roller body 11 extends relatively more to maintain contact; in the area where the diameter of the isolation film roll is larger, the roller body 11 contracts relatively more to avoid excessive pressure.

[0041] It should be understood that the above embodiments are one or more embodiments of the present invention. There are many other embodiments and variations thereof based on the present invention. The variations and modifications made by ordinary technicians in this industry through the present invention without making groundbreaking innovations all fall within the scope of protection of the present invention.

Claims

1. A flexible adjusting roller device, characterized in that: include A roller body, used to apply pressure to the release film roll to flatten it; The lever mechanism includes a lever plate, a bearing and a rotating shaft. A stepped bearing seat consisting of a stepped through hole is opened in the middle section of the lever plate. The outer periphery of the bearing is installed tightly against the inner end surface of the stepped bearing seat. One end of the rotating shaft is provided with a limiting shoulder. The limiting shoulder passes through the inner periphery of the bearing and abuts against the inner peripheral surface of the bearing. The other end of the rotating shaft is fixedly mounted on the frame. The lever plate and the rotating shaft achieve relative rotation through the bearing. The stepped bearing seat is the rotation center of the lever plate. There are two force arm mechanisms, which are mirror-symmetrically mounted at both ends of the roller body. The top ends of the two corresponding force arm plates are fixed with bearing seats. The bearing seats cooperate with the self-aligning ball bearings provided at both ends of the roller body to enable relative rotation between the roller body and the force arm mechanism. The ends of the two corresponding force arm plates are connected to a Y-shaped joint through a shoulder hinge pin. The Y-shaped joint is fixed to the piston rod of the low-friction cylinder mechanism. The low-friction cylinder mechanism is electrically connected to the control mechanism and drives the piston rod to move linearly.

2. The flexible adjusting roller device according to claim 1, characterized in that: The low-friction cylinder mechanism is fixedly mounted on the frame. An electrical proportional valve electrically connected to a control mechanism is provided in the low-friction cylinder mechanism for controlling the output thrust of the piston rod, thereby controlling the pressure of the roller on the isolation film roll.

3. The flexible adjusting roller device according to claim 1, characterized in that: The rotation center distance between the bearing seat and the lever plate is L1, and the rotation center distance between the shoulder hinge pin and the lever plate is L2, where L1=2L2, that is, the lever plate and the piston rod form a lever ratio of 1:

2. When the piston rod outputs a thrust F, the pressure of the roller body on the isolation film roll is F / 2.

4. The flexible adjusting roller device according to claim 1, characterized in that: The input end of the flexible adjusting roller device is provided with a plurality of conveying rollers, and the output end is provided with a winding mechanism, the conveying rollers are used to convey the isolation film to the winding mechanism for collection, and a cutting mechanism is provided between the winding mechanism and the flexible adjusting roller device for cutting the isolation film; The reel is connected to the reel by a plurality of movable members, and the movable members are connected to the reel to form a reel. The reel is connected to the reel by a plurality of movable members. The movable members are connected to the reel to form a reel. The reel is connected to the reel by a plurality of movable members. If the winding shaft of the current working position is located within the working position angle range β of the flexible adjustment roller device, that is, |β|≤50°, the outer peripheral surface of the roller body is pressed against the surface of the film roll of the winding shaft of the current working position. When the winding shaft of the current working position moves out of the working position angle range β as the cantilever rotates, the roller body immediately breaks contact. The moment the new winding shaft enters the working position angle range β, the cutting mechanism synchronously cuts off the isolation film, and the roller body then comes into contact with the new winding shaft to continue the winding operation. The working position angle range β is the angle between the line connecting the axis of the roller body and the axis of the winding shaft of the current working position and the horizontal line.

5. The flexible adjusting roller device according to claim 4, characterized in that: Two correcting rollers electrically connected to the control mechanism are provided directly above the conveying roller, and the axes of the correcting rollers are parallel to the axes of the corresponding conveying rollers; the two correcting rollers are respectively located at the ends of the axial direction of the conveying roller, and the control mechanism drives the correcting rollers to move on their own and move up and down relative to the conveying roller.

6. The flexible adjusting roller device according to claim 5, characterized in that The adjustment method of the flexible adjusting roller device comprises the following steps: S1. Initial pressure setting: The constant output pressure P0 required by the flexible adjusting roller device is set according to the material properties of the isolation film and actual usage requirements. The control mechanism adjusts the output thrust of the piston rod according to the constant output pressure P0, so that the roller body of the flexible adjusting roller device applies the preset constant output pressure P0 to the isolation film roll; S2. Monitoring of radial difference of the roll: During the winding process, the diameter change of the isolation film roll of the current station winding shaft on the winding mechanism is monitored in real time by a laser diameter gauge, and the radial deviation ΔD is calculated, that is, ΔD=D max -D min , where D max D is the maximum axial diameter of the isolation film roll of the current station reel. min The minimum axial diameter of the isolation film roll of the reel at the current station; S3, roller stroke adaptive adjustment: When it is detected that the radial deviation ΔD of the isolation film roll exceeds the threshold, it indicates that the isolation film roll has obvious unequal diameter phenomenon. The control mechanism adjusts the roller stroke adaptively according to the real-time measurement of D. max and D min The control mechanism drives the piston rod of the low-friction cylinder mechanism to perform telescopic movement, and independently adjusts the spatial positions of the left and right ends of the roller body, so that the roller body always contacts the surface of the isolation film roll with the constant output pressure P0.

7. The flexible adjusting roller device according to claim 6, characterized in that The method further includes a deflection correction and adjustment step: using an infrared sensor to measure in real time whether the isolation film is deflected on the conveying roller, as well as the magnitude and direction of the deflection; based on the data fed back by the infrared sensor, the control mechanism determines whether there is deflection; if the deflection of the isolation film is within a set threshold, the control mechanism continues monitoring without responding; if the deflection of the isolation film exceeds the set threshold, the deflection correction and adjustment operation is initiated; When it is detected that the offset of the isolation film exceeds a set threshold, the control mechanism corrects the offset isolation film by adjusting the up and down movement and rotation speed of the two correction rollers, specifically: When it is found that the isolation film is deflected to one side, the control mechanism drives the two correcting rollers to move downward until the outer periphery of the correcting roller is in close contact with the upper surface of the isolation film to apply friction to the isolation film. The control mechanism dynamically adjusts the rotation speed of the two correcting rollers according to the deflection direction and amplitude of the isolation film to apply different friction forces to the two edges of the isolation film. The friction force of the correcting roller close to the edge of the isolation film with a higher linear speed on the isolation film is greater than the friction force of the correcting roller close to the edge of the isolation film with a lower linear speed on the isolation film. The infrared sensor continuously monitors the position of the isolation film and the relative position of the winding shaft until the deflection caused by the inconsistent linear speed of the two edges of the isolation film is eliminated. The control mechanism controls the correcting roller to stop rotating and drives the correcting roller away from the conveying roller to return to the initial position.

8. The flexible adjusting roller device according to claim 7, characterized in that: The offset of the isolation film is set to Δx, the initial rotation speed of the correction roller is v0, v0 is consistent with the preset transmission speed of the isolation film, and the adjusted rotation speeds of the two correction rollers are set to v1 and v2, where v1>v2, that is, the rotation speed difference of the two correction rollers Δv=v1-v2, where the offset of the isolation film Δx is proportional to the rotation speed difference Δv of the two correction rollers, and the relationship can be obtained: Wherein, k' is a proportional coefficient determined according to the isolation film characteristics and has a value range of 0.1-1.0; the rotational speeds of the two correcting rollers after adjustment are v1=v0+Δv / 2; v2=v0-Δv / 2.

9. The flexible adjusting roller device according to claim 8, characterized in that: The proportional coefficient k' is determined according to the contact force N and the friction coefficient μ between the deflection correction roller and the isolation film. The friction difference ΔF between the two deflection correction rollers and the isolation film is equal to μN (v1-v2). Since the offset of the isolation film relative to the conveying roller is caused by the different linear speeds of the two edges of the isolation film, the friction difference ΔF is proportional to the offset Δx. The proportional relationship coefficient C between the friction difference ΔF and the offset Δx is determined by experiments. It can be obtained that the friction difference ΔF and the offset Δx satisfy the relationship: Δx=C×ΔF=C×μN(v1-v2)=C×μN×Δv, so k'=C×μN.

10. The flexible adjusting roller device according to claim 6, characterized in that: The control mechanism in step S3 adjusts the spatial position of the left and right ends of the roller body with the goal of dynamically adapting the surface profile of the roller body to the current radial deviation shape of the isolation film roll while always maintaining the contact pressure of the roller body on the isolation film roll constant at the preset constant output pressure P0.

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