A beat coordination method, system and device for synchronous peeling of a multi-layer release material and a storage medium

Abstract

The application discloses a beat coordination method, system and device for synchronous peeling of multi-layer release materials and a storage medium. The method comprises the following steps: determining a composite tape to be peeled; driving the composite tape to run along a preset conveying path, and making at least two layers of release materials be peeled from a base material at a peeling station; determining the layer release state difference of the at least two layers of release materials in the corresponding local release section after peeling; determining the layer length allowance deviation of the at least two layers of release materials between the peeling position and the corresponding traction position; generating the local release length adjustment amount of the at least two layers of release materials in mutual correlation; increasing and / or decreasing the local release length of at least one layer of release materials between the peeling position and the traction position according to the local release length adjustment amount; and introducing the adjusted release material into a traction path for traction.

Description

Technical Field

[0001] This application relates to the field of composite material technology, and in particular to a rhythm coordination method, system, device and storage medium for synchronous peeling of multilayer release materials. Background Technology

[0002] In the field of flexible composite material processing, a composite strip structure with multiple layers of release material stacked on the surface of the substrate is often used. The release materials are then continuously conveyed and separated from the substrate at a peeling station. During this process, each layer of release material typically enters an independent traction path for subsequent winding or transfer.

[0003] In the actual peeling process, due to the differences in peeling path length, conveying status and running resistance of different release material layers, the release process of each release material layer after peeling is prone to asynchronous phenomenon, which in turn affects the rhythm consistency of each release material layer during the traction stage. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a method, system, apparatus, and storage medium for the synchronous peeling of multilayer release materials in a coordinated manner.

[0005] The technical solution provided in this application is described below:

[0006] The first aspect of this application provides a rhythmic coordination method for the synchronous peeling of multilayer release materials, the method comprising: The composite strip to be peeled is identified, the composite strip comprising a substrate and at least two layers of release material stacked on the surface of the substrate; The composite material belt is driven to run along a preset conveying path, and at the peeling station, at least two layers of release material are peeled off from the substrate, forming peeling positions corresponding to each layer of release material and peeling paths extending from the peeling positions to the corresponding traction positions. Determine the difference in interlayer release state in the corresponding local release zones of at least two layers of release material after peeling; Based on the difference in interlayer release states, determine the interlayer length margin deviation of at least two layers of release material between the peeling position and the corresponding traction position; Based on the interlayer length margin deviation, at least two layers of release material are associated with local release length adjustment amounts. The local release length of at least one layer of release material is increased and / or decreased between the peeling position and the traction position according to the local release length adjustment amount; The adjusted release material is guided into the traction path for traction to maintain the synchronous peeling rhythm of at least two layers of release material.

[0007] Optionally, determining the interlayer length allowance deviation of at least two layers of release material between the peeling position and the corresponding traction position based on the difference in interlayer release states includes: Based on the difference in release states, a target reference layer is determined from the at least two layers of release material; Obtain the local release length margin of the target reference layer between the peeling position and the traction position; Using the local release length margin of the target reference layer as a reference, determine the interlayer length margin deviation of the release materials of other layers relative to the target reference layer; Based on the deviation of the interlayer length margin, the target release length difference of the release material of the corresponding layer is determined.

[0008] Optionally, determining the difference in interlayer release states in the corresponding local release zones of at least two layers of release material after peeling includes: Determine the local release section of the release material between the peeling position and the traction position; Obtain parameter combination data for each layer of release material within the local release zone; Based on the parameter combination data corresponding to each layer of release material, the local release response amount of each layer of release material in the local release section is determined, and the local release response amount satisfies the preset first constraint relationship. The interlayer release state difference is determined based on the difference between the local release response amounts of at least two layers of release material, and the interlayer release state difference satisfies a preset second constraint relationship.

[0009] Optionally, the parameter combination data includes release length parameter, running tension parameter, and conveying speed parameter; The first constraint relationship includes: ; Among them, L i T represents the release length parameter. i V represents the operating tension parameter. i R represents the conveying speed parameter. i L represents the local release response quantity; where L re T is the preset reference release length. ref For the preset reference tension, V ref The preset reference conveying speed is α, β, and γ, which are the weighting coefficients of the corresponding parameters, and α+β+γ=1, where i represents the layer identifier of the release material.

[0010] Optionally, the second constraint relationship includes: ΔR ij =∣R i R j |; Wherein, the ΔR ij The difference in the release state between the layers is indicated by i and j, which represent the layer identifiers of the release material.

[0011] Optionally, generating a locally released length adjustment amount that is correlated between at least two layers of release material based on the interlayer length allowance deviation includes: Determine the preset interlayer coupling coefficient; Based on the interlayer coupling coefficient, the local release length adjustment of each layer of release material is coupled and corrected using the interlayer length margin deviation to obtain the corresponding basic adjustment amount; Based on the constraint relationships between the various basic adjustment quantities, interrelated local release length adjustment quantities are generated.

[0012] Optionally, the constraint relationship includes: The local release length adjustment of each layer of release material satisfies the constraint that the sum of the local release length adjustment of each layer is equal to the total amount of the preset total adjustment. The difference in the local release length adjustment between any two adjacent layers of release material does not exceed the preset difference threshold. A mapping constraint exists between the local release length adjustment of each layer of release material and the deviation of the interlayer length margin of the corresponding layer, which has a proportional correspondence.

[0013] Optionally, a preset interlayer coupling coefficient is determined, including: The interlayer adjacency influence coefficient is determined based on the spatial adjacency relationship of each layer of release material at the peeling station. The resistance coupling coefficient is determined based on the difference in peel resistance of each layer of release material. The dynamic synchronization coefficient is determined based on the synchronous offset trend of each layer of release material in the local release section. The adjacency influence coefficient, the resistance coupling coefficient, and the dynamic synchronization coefficient are coupled to obtain the interlayer coupling coefficient.

[0014] A second aspect of this application provides a timing coordination system for the synchronous peeling of multi-layer release materials, comprising: The first determining unit is used to determine the composite strip to be peeled off, the composite strip including a substrate and at least two layers of release material stacked on the surface of the substrate; The drive peeling unit is used to drive the composite material belt to run along a preset conveying path, and peel the at least two layers of release material from the substrate at the peeling station, forming a peeling position corresponding to each layer of release material and a peeling path extending from the peeling position to the corresponding traction position. The second determining unit is used to determine the difference in interlayer release state in the corresponding local release section of at least two layers of release material after peeling. The third determining unit is used to determine the interlayer length margin deviation of at least two layers of release material between the peeling position and the corresponding traction position based on the difference in interlayer release state. The generation unit is used to generate local release length adjustment amounts that are interrelated between at least two layers of release material, based on the interlayer length allowance deviation. An adjustment unit is configured to increase and / or decrease the local release length of at least one layer of release material between the peeling position and the traction position based on the local release length adjustment amount. The traction unit is used to guide the adjusted release material into the traction path for traction, so as to maintain the synchronous peeling rhythm of at least two layers of release material.

[0015] A third aspect of this application provides a timing coordination device for the synchronous peeling of multi-layer release materials, the device comprising: Processor, memory, input / output units, and bus; The processor is connected to the memory, the input / output unit, and the bus; The memory stores a program, which the processor invokes to execute the first aspect and any one of the optional methods in the first aspect.

[0016] A fourth aspect of this application provides a computer-readable storage medium on which a program is stored, which, when executed on a computer, performs the methods of the first aspect and any one of the first aspects.

[0017] As can be seen from the above technical solutions, this application has the following beneficial effects: 1. In this application, the operation process of multi-layer release material after peeling is coordinated so that the release state of each layer of release material tends to be consistent during the peeling to traction process, thereby improving the synchronicity of the operation process of multi-layer release material.

[0018] 2. In this application, the operational differences between different layers of release material can be coordinated and controlled to a certain extent during the continuous peeling process of multi-layer release material, thereby reducing the deviation of the state of each layer of material in the subsequent traction process.

[0019] 3. The solution provided in this application improves the operational stability of multi-layer release materials during continuous processing to a certain extent and reduces processing fluctuations caused by inconsistent operating states of each layer. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic flowchart of an embodiment of a rhythmic coordination method for synchronous peeling of multilayer release materials provided in this application; Figure 2 This is a schematic flowchart of an embodiment of step S103 in the rhythm coordination method for synchronous peeling of multilayer release materials provided in this application; Figure 3 This is a schematic flowchart of an embodiment of step S103 in the rhythm coordination method for synchronous peeling of multilayer release materials provided in this application; Figure 4 This is a schematic flowchart of an embodiment of step S106 in the rhythm coordination method for synchronous peeling of multilayer release materials provided in this application; Figure 5 This is a schematic diagram of a cross-sectional structure of the composite strip described in this application; Figure 6 This is a structural schematic diagram of the traction path and traction position in this application; Figure 7 A schematic diagram of an embodiment of the system used in the rhythm coordination method for synchronous peeling of multilayer release materials provided in this application; Figure 8 This is a schematic diagram of an embodiment of the timing coordination system for synchronous peeling of multi-layer release materials provided in this application; Figure 9 This is a schematic diagram of an embodiment of the timing coordination device for synchronous peeling of multi-layer release materials provided in this application. Detailed Implementation

[0022] This application is applicable to multi-layer composite material processing scenarios with continuous roll conveying, and is particularly applicable to the rhythm coordination control of composite strips with at least two layers of release material stacked on the substrate surface during continuous peeling and layer traction.

[0023] In a typical application, the composite tape runs continuously along a preset conveying path, and at the peeling station, the multiple layers of release material are separated from the substrate. Each layer of release material then enters its corresponding traction path for independent winding or subsequent processing. This process is widely used in continuous manufacturing processes such as label material processing, functional protective film preparation, and multilayer composite tape production.

[0024] For example, in the production process of multilayer protective film materials, multiple layers of release film materials with different functions are generally stacked on the surface of the substrate. After being separated at the peeling station, each layer of release film enters a different winding unit for collection. During continuous operation, each layer of release film needs to maintain a relatively consistent operating rhythm to ensure the stability and continuity of the subsequent winding process. The method involved in this application can be used in the above scenario to coordinate the operating rhythm of multilayer release materials after peeling.

[0025] To better understand the application scenarios and actual processing environments of this application, please refer to [link / reference]. Figure 6 , Figure 6 This is a schematic diagram of the layered peeling and traction path at a peeling station provided in this application. (See diagram below.) Figure 6 The composite strip is released by the unwinding mechanism, passes through the pretension rollers, and enters the peeling station along the conveying direction of the composite strip. It is then peeled at positions P1, P2, P3, and P4. N Layered peeling is performed. Each layer of release material enters the corresponding local release section through traction positions Q1, Q2, Q3, and finally Q4. N It then passes sequentially through the tension roller group (tension detection) and the traction roller group (independent or coordinated traction position Q). N The substrate is then passed through tension rollers (tension detection) in sequence, and finally enters winding unit 1, winding unit 2, winding unit 3 to winding unit N respectively; the peeled substrate enters substrate winding or subsequent processes along the substrate path.

[0026] Please see Figure 1 This application first provides an embodiment of a rhythmic coordination method for the synchronous peeling of multi-layer release materials, which includes: S101. Determine the composite strip to be peeled off, wherein the composite strip includes a substrate and at least two layers of release material stacked on the surface of the substrate; In this step, the composite strip to be peeled is first identified. This composite strip is typically stored in roll form and released into the production line via an unwinding mechanism during use. The composite strip can consist of a substrate forming the main support, with at least two layers of release material stacked sequentially on its surface. These release materials are bonded together at interfaces with different peel forces to form a multi-layered composite structure. During implementation, the layer structure of the composite strip can be identified using preset process formula information, and its corresponding structural parameters, such as the type and thickness range of each layer and the preset peel level, can be obtained using barcode information, RFID tags, or online visual recognition methods. This provides basic data for subsequent peeling control. In some embodiments, pretension can be applied to the composite strip at the initial unwinding stage to eliminate initial slack or local wrinkles before the material enters the peeling station, thereby improving the stability of the subsequent peeling process.

[0027] The structure of the composite strip described in this application can be found in [reference needed]. Figure 5 ,Book Figure 5 This is a schematic diagram of a multi-layer composite strip stacked structure. Figure 5 In this composite strip, a substrate and multiple layers of release material are stacked on the surface of the substrate. The substrate serves as the main load-bearing structure. The release material includes at least a first layer, a second layer, and up to an Nth layer, where the first layer is the bottom layer and the Nth layer is the top layer. Corresponding peel interfaces are formed between adjacent layers, such as a first peel interface, a second peel interface, and up to an (N-1)th peel interface. During peeling, layers can be peeled off sequentially from top to bottom along the peeling direction.

[0028] S102. Drive the composite material belt to run along the preset conveying path, and peel off the at least two layers of release material from the substrate at the peeling station, forming a peeling position corresponding to each layer of release material and a peeling path extending from the peeling position to the corresponding traction position. In this step, the drive mechanism propels the composite material belt continuously along a preset conveying path, which typically consists of multiple guide roller groups, tension control roller groups, and a peeling station. When the composite material belt reaches the peeling station, each layer of release material separates from the substrate layer by layer under the action of the peeling structure. This peeling structure can be a peeling blade with a certain wrap angle or a layered guide roller structure, creating step-by-step separation conditions at different interfaces in space, thereby allowing each layer of release material to peel off from the substrate and enter its own independent motion path. During the peeling process, each layer of release material forms a free release path extending from the peeling position to the entrance of its respective traction mechanism. This path is usually curved or suspended in space, and its length is related to factors such as the peeling angle, tension state, and material rigidity. Due to the differences in peeling resistance and mechanical response of different layers of release material, each layer may exhibit different release speeds and path unfolding states at the moment of peeling.

[0029] S103. Determine the difference in interlayer release state in the corresponding local release zone of at least two layers of release material after peeling; A state analysis was performed on the local release zone formed between the peeling position and the traction position of each layer of release material after peeling. This local release zone corresponds to the transition region between the material detaching from the substrate and entering a stable traction state. In this region, the material is in a free or semi-constrained state, and its motion is easily affected by tension fluctuations, velocity disturbances, and the material's own elastic restoring force.

[0030] During implementation, the operating status of each layer of release material can be continuously collected through tension sensors, encoders, and displacement detection units, thereby obtaining the changes in operating parameters of each layer in this section, such as instantaneous tension fluctuation amplitude, local speed deviation, and path length change trend.

[0031] Based on these parameters, the response characteristics of each layer of release material during the local release process can be characterized, thus forming the differences in release states between each layer.

[0032] See Figure 2 In an optional embodiment, this application provides a specific implementation of step S103, which includes: S1031. Determine the local release section of the release material between the peeling position and the traction position; In this step, for each layer of release material, a local release section is determined between the corresponding peeling position and the corresponding traction position. The peeling position can be the spatial location where the release material separates from the substrate, and the traction position can be the entry point where the release material enters the traction roller group, the winding traction mechanism, or the subsequent guiding mechanism. The section between the peeling position and the traction position is the transition section of the release material after it separates from the substrate and before it enters a stable traction state.

[0033] In actual operation, because the release material in this partial release section is not yet fully constrained by the traction mechanism, it is easily affected by changes in peeling resistance, material elastic recovery, tension fluctuations, and conveying speed disturbances. The release state in this section can reflect the inconsistency trend in the cycle time between different layers of release material relatively early. Therefore, this application does not only detect the final speed deviation of each layer of material at the winding end or traction end, but also determines the partial release section between the peeling position and the traction position, and makes cycle time coordination judgment based on the operating state in this partial release section.

[0034] In another implementation, the local release section can be determined based on a preset spatial boundary. For example, the exit position of the peeling blade or the layering guide roller can be taken as the starting point of the section, and the infeed cutting point of the first set of traction rollers can be taken as the ending point of the section; or, the first detection position after the release material detaches from the substrate can be taken as the starting point of the section, and the last detection position before the traction mechanism can be taken as the ending point of the section.

[0035] In one possible implementation, the partial release sections corresponding to at least two layers of release material can have different spatial lengths or different guide paths. For example, a layer of release material near the outer side of the substrate can enter the first traction path via the upper guide roller, while another layer of release material near the inner side of the substrate can enter the second traction path via the lower guide roller. In this case, the partial release section corresponding to each layer of release material can be determined separately, without requiring the partial release sections of each layer of release material to completely overlap in space.

[0036] S1032. Obtain parameter combination data for each layer of release material within the local release section; In one possible implementation, the parameter combination data includes the release length parameter L. i Operating tension parameter T i and conveying speed parameter V i Among them, the release length parameter L i Used to characterize the actual path unfolding length or equivalent release length of the i-th layer of release material within the local release section; operating tension parameter T i Used to characterize the traction tension or equivalent tension value experienced by the i-th layer of release material within the local release section; conveying speed parameter V i Used to characterize the running speed or speed equivalent value of the i-th layer of release material in the local release section.

[0037] Specifically, release the length parameter L i The release length can be obtained through a vision inspection unit, displacement sensor, guide roller position sensor, or swing arm angle sensor. For example, when a floating roller or tension swing arm is set within the local release section, the equivalent release length of the release material can be calculated based on the displacement of the floating roller or the angle of the swing arm. When using vision inspection, multiple path sampling points of the release material within the local release section can be obtained, and the release length parameter L can be obtained by accumulating the distance between adjacent path sampling points. i .

[0038] Operating tension parameter T i The tension can be obtained through a tension sensor, a tension detection roller, or a load feedback signal from a traction motor. In some implementations, the average tension within a preset sampling period can be used as the operating tension parameter T. i Alternatively, the average tension and tension fluctuation can be combined to calculate an equivalent tension parameter. For example, when a certain layer of release material exhibits significant tension oscillation within a preset sampling period, the weight of this tension fluctuation on the parameter combination data can be increased to more accurately reflect the unstable release state of that layer of release material.

[0039] Conveying speed parameter V iThe speed can be obtained through an encoder, traction motor speed feedback, visual speed measurement unit, or guide roller speed detection unit. In some implementations, the conveying speed parameter V... i It can be the instantaneous velocity of the i-th layer of release material in the local release section, or the average velocity or equivalent velocity within a preset sampling period.

[0040] In one specific implementation, to reduce the impact of transient noise on the judgment result, the above parameters can be sampled and filtered within a preset sampling period. For example, for the i-th release material, the release length parameter L can be obtained from sampling times t1 to tq. i (t), running tension parameter T i The parameters are given by (t) and the conveying speed parameter Vi(t), and the corresponding equivalent parameters are obtained by moving average: L i =(1 / q)·Σr=1 to qL i (tr); T i =(1 / q)·Σr=1 to qT i (tr); V i =(1 / q)·Σr=1 to qV i (tr); Where q represents the number of samples within the sampling window, and tr represents the r-th sampling time. This embodiment can reduce the impact of single-detection errors, local material vibrations, or sensor noise on the subsequent calculation of the local release response.

[0041] S1033. Based on the parameter combination data corresponding to each layer of release material, determine the local release response amount of each layer of release material in the local release section, wherein the local release response amount satisfies a preset first constraint relationship. In this embodiment, based on the release length parameter L i Operating tension parameter T i and conveying speed parameter V i Determine the local release response R of the i-th release material in the local release zone. i The local release response quantity R i It is used to convert parameters of different dimensions, such as release length, running tension, and conveying speed, into state quantities that can be compared between layers.

[0042] In one possible implementation, the release length parameter L can be set separately. i Operating tension parameter T i and conveying speed parameter V i Releasing length L relative to the preset reference ref Preset reference tension Tref and preset reference conveying speed V ref Normalization is performed, and corresponding weights are set according to the influence of different parameters on the release state. At this point, the first constraint relationship can be expressed as: R i =α·L i / L ref +β·T i / T ref +γ·V i / V ref ; Among them, L i T represents the release length parameter of the i-th release material layer. i V represents the running tension parameter of the i-th release material layer. i R represents the conveying speed parameter of the i-th layer of release material. i L represents the local release response of the i-th release layer material. ref T represents the preset baseline release length. ref V represents the preset reference tension. ref The preset reference conveying speed is represented by α, β, and γ, which are the weighting coefficients corresponding to the release length parameter, running tension parameter, and conveying speed parameter, respectively, and satisfy α + β + γ = 1. i represents the layer identifier of the release material.

[0043] In this constraint relationship, the release length parameter Li reflects the path unfolding state of the release material layer in the local release section, the running tension parameter Ti reflects the stress state of the release material layer between peeling and traction, and the conveying speed parameter Vi reflects the motion state of the release material layer relative to the production line cycle. By weighting and fusing the above parameters, a comprehensive response quantity can be obtained to characterize the local release state of the release material layer.

[0044] In another possible implementation, α, β, and γ can be preset according to material properties and process requirements. For example, when the release material is thin and prone to loosening or local wrinkling, the release length parameter L can be increased. i The corresponding weight α; when the release material peel force changes significantly and tension fluctuations have a more pronounced impact on the cycle time, the operating tension parameter T can be increased. i The corresponding weight β; when the production line operates at a high speed and small speed differences can easily lead to winding instability, the conveyor speed parameter V can be increased. i The corresponding weight γ.

[0045] For example, the release length parameter L corresponding to a certain layer of release material i The preset reference release length is 105mm. ref 100mm; operating tension parameter Ti The preset reference tension is 9.5N. ref 10N; conveying speed parameter V i The preset reference conveying speed is 30.6 m / min. ref The speed is 30 m / min. If α = 0.4, β = 0.3, and γ = 0.3, then the local release response R of this layered release material is... i for: R i =0.4×10⁵ / 100+0.3×9.5 / 10+0.3×30.6 / 30; R i =0.4×1.05+0.3×0.95+0.3×1.02; R i =1.011.

[0046] In this embodiment, R i The greater the deviation from the preset synchronization state in response level, the more likely the release state of the release material in the local release section is to deviate from the ideal synchronization state. In some possible implementations, a deviation-type local release response quantity can also be used to further highlight the degree of deviation. For example: R i =α·|L i -L ref | / L ref +β·|Ti-T ref | / Tref +γ·|V i -V ref | / V ref .

[0047] Compared to the aforementioned methods, this expression can directly characterize the deviation intensity of the i-th release material relative to a preset baseline state. In practical applications, either a proportional or deviation-based expression can be selected based on the control strategy, as long as the local release state of each release material layer can be converted into a comparable response quantity.

[0048] S1034. Determine the interlayer release state difference based on the difference between the local release response amounts of at least two layers of release material, wherein the interlayer release state difference satisfies a preset second constraint relationship.

[0049] In this embodiment, the interlayer release state difference is determined based on the difference between the local release response amounts of at least two layers of release material. This interlayer release state difference characterizes the degree of inconsistency in the release states of different layers of release material within the local release zone.

[0050] In one implementation, for the i-th release material and the j-th release material, the local release response R corresponding to both can be used as a reference.i and R j Determine the difference in interlayer release states ΔR ij The second constraint relationship can be expressed as: ΔR ij =|R i -R j |; Where, ΔR ij R represents the difference in interlayer release states between the i-th and j-th release materials. i R represents the local release response of the i-th release layer material. j This represents the local release response of the j-th layer of release material, where i and j represent the layer identifiers of different release materials.

[0051] When ΔR ij When ΔR is small, it indicates that the release states of the i-th and j-th release materials are similar in the local release section, and the rhythm consistency between them is good; when ΔR ij When the value is large, it indicates that the release states of the i-th release material and the j-th release material are significantly different in the local release section. There may be problems such as asynchronous peeling cycle, inconsistent local release length, mismatched tension state, or inconsistent speed response between the two.

[0052] In one possible implementation, a preset difference threshold ΔR can be set. th And based on the difference in interlayer release state ΔR ij The difference threshold ΔR between the two sides is 100%. th The relationship between these factors determines whether subsequent length margin deviation calculations and release length adjustments are needed. For example, when ΔR... ij ≤ΔR th When the release state difference between the two release materials is considered to be within the allowable range, it can be assumed that the difference is within the acceptable range; when ΔR ij >ΔR th At this time, it can be assumed that there is a rhythm deviation that needs to be coordinated between the two release materials, and the subsequent step of determining the interlayer length allowance deviation is triggered.

[0053] When the composite strip comprises three or more layers of release material, the difference in interlayer release state between any two layers can be calculated separately. Alternatively, one layer can be used as a reference layer to calculate the difference in interlayer release state of the other layers relative to that reference layer. For example, ΔR can be calculated separately for the first, second, and third release materials. 12 ΔR 13 and ΔR 23 To form a set of interlayer release state differences: ΔR={ΔR12, ΔR13, ΔR23}.

[0054] The overall interlayer release state difference can also be determined based on the local release response of each layer of release material. For example, the difference between the maximum and minimum values ​​of the local release response of each layer can be used as the overall interlayer release state difference ΔR. all In this embodiment, ΔR all It can be represented as follows: ΔR all =max(R1, R2, ..., R) n min(R1, R2, ..., R) n ); Where n represents the number of layers of release material. This method allows for a quick determination of the consistency of the overall release state of multiple layers of release material. When ΔR all When the overall difference threshold is exceeded, it can be considered that there is an overall rhythm imbalance trend among the multi-layer release materials.

[0055] For example, when the composite strip includes a first release material, a second release material, and a third release material, and the local release response values ​​of the first release material, the second release material, and the third release material are calculated to be R1=1.011, R2=0.982, and R3=1.046 respectively based on the parameter combination data, we can obtain: ΔR 12 =|1.011-0.982|=0.029; ΔR 13 =|1.011-1.046|=0.035; ΔR 23 =|0.982-1.046|=0.064.

[0056] In this embodiment, if the preset difference threshold ΔRth is 0.050, the difference in release state between the first release material and the second release material, and between the first release material and the third release material, is within the allowable range. However, if the difference in release state between the second release material and the third release material exceeds the preset difference threshold, the corresponding interlayer length margin deviation needs to be further determined in subsequent steps, and the corresponding local release length adjustment amount needs to be generated.

[0057] S104. Based on the difference in interlayer release states, determine the interlayer length margin deviation of at least two layers of release material between the peeling position and the corresponding traction position; In this embodiment, the aforementioned differences in release states are further mapped to interlayer length margin deviations. Specifically, the actual unfolding path length of each layer of release material within the local release section can be integrated or accumulated and compared with the preset theoretical release path length to obtain the length margin information corresponding to each layer.

[0058] In this step, the length margin reflects the degree of lead or lag of the layer relative to the ideal synchronization state. In actual processing, one layer can be selected as a reference layer, and the other layers are compared with this reference layer to obtain the relative length deviation relationship between the layers. This deviation not only reflects the difference in geometric path, but also indirectly reflects the synchronization error of each layer in the peeling cycle.

[0059] For details, please refer to Figure 3 This application provides a specific embodiment of step S104, which includes: S1041. Based on the difference in release states, determine a target reference layer from the at least two release materials; In this step, a target reference layer can be determined from at least two release materials based on the stability of the release state of each release material layer in the local release section. The target reference layer is used as a reference layer for subsequent length margin comparison. It is not necessarily limited to the outermost or innermost release material, but can be dynamically determined based on the actual operating state of each release material layer after peeling.

[0060] In one implementation, the local release response amount R corresponding to each layer of release material can be obtained separately. i The overall deviation of each layer is determined based on the difference in local release response between each layer of release material. Specifically, the average release response R of at least two layers of release material can be determined first. avg The average release response amount R avg It can be represented as: R avg =(R1+R2+…+R n ) / n; Where n represents the number of layers of release material, R i This represents the local release response of the i-th release material layer.

[0061] Then, based on the deviation between the local release response and the average release response of each layer of release material, the release stability evaluation value D of the corresponding layer can be determined. i ,For example: D i =λ1·|R i -R avg |+λ2·σT i / T ref +λ3·σV i / V ref ; Where, σT i σV represents the tension fluctuation of the i-th release material within a preset sampling period. iT represents the velocity fluctuation of the i-th release material within a preset sampling period. ref V represents the preset reference tension. ref This represents the preset baseline conveying speed, and λ1, λ2, and λ3 are the evaluation weights for the corresponding items.

[0062] It should be noted that the above calculation formula is only used to illustrate one way of determining the target benchmark layer. In practical applications, evaluation items can also be added or removed according to equipment structure, material type, or process formula.

[0063] When the release stability evaluation value D of a certain layer of release material i When the value is minimized, it indicates that the release response of this layer of release material is closer to the overall synchronous state, and the tension and velocity fluctuations are relatively small. Therefore, this layer of release material can be determined as the target reference layer. In other words, if the k-th layer of release material satisfies: D k =min(D1, D2, ..., D n ); Then the k-th release material layer is determined as the target reference layer.

[0064] In another implementation, the release material layer with the most stable peeling resistance, the smallest path fluctuation, or the highest control precision of the traction mechanism can be pre-set as a candidate reference layer. This candidate reference layer is then validated during actual operation based on differences in release states. When the interlayer release state difference between this candidate reference layer and other layers does not exceed a preset difference threshold, this candidate reference layer is used as the target reference layer. If the release state corresponding to this candidate reference layer is abnormal, the target reference layer is re-determined according to the above method. Based on this, it is possible to avoid using release materials in abnormal shaking, localized relaxation, or traction instability states as references, thereby improving the reliability of the calculation.

[0065] S1042. Obtain the local release length margin of the target reference layer between the peeling position and the traction position; In this embodiment, after determining the target reference layer, the local release length margin of the target reference layer between the peeling position and the corresponding traction position is obtained. The local release length margin is used to characterize the degree of deviation of the actual release path length of the target reference layer within the local release section from the preset synchronous path length.

[0066] Specifically, the peeling position of the target reference layer can be denoted as Pk, and the position where the target reference layer enters the traction mechanism or is introduced into the traction path can be denoted as Qk. The path segment between Pk and Qk is the local release segment of the target reference layer. Within this local release segment, the actual path shape of the target reference layer can be obtained through visual inspection unit, displacement sensor, swing arm angle sensor, or guide roller position feedback data, and the actual local release length Lk_act of the target reference layer can be further determined.

[0067] In one implementation, when the path points of the target reference layer within the local release segment are obtained through visual detection, the path can be discretized into multiple sampling points, and the actual local release length can be obtained by accumulating the distances between adjacent sampling points. For example, if the path points of the target reference layer within the local release segment are represented as A0, A1, ..., Am, then the actual local release length Lk_act can be represented as: Lk_act=Σs=1 to m|As-As-1|; Where |As-As-1| represents the spatial distance between two adjacent sampling points.

[0068] S1043. Using the local release length margin of the target reference layer as a reference, determine the interlayer length margin deviation of the release materials of other layers relative to the target reference layer. In this step, after obtaining the local release length margin of the target reference layer, the local release length margin of the target reference layer is used as a reference to determine the interlayer length margin deviation of other release materials relative to the target reference layer.

[0069] Specifically, for any release material layer other than the target reference layer, the actual local release length Li_act between the peeling position and the corresponding traction position of the release material layer can be obtained using the same or corresponding method as the target reference layer. The preset synchronous release length Li_ref corresponding to the release material layer can also be obtained. Then, the local release length margin Mi of the release material layer can be obtained using the following formula: Mi = Li_act - Li_ref; Then, the local release length margin Mi of the i-th release material is compared with the local release length margin Mk of the target reference layer to obtain the interlayer length margin deviation ΔMik of the i-th release material relative to the target reference layer.

[0070] Where ΔMik represents the deviation of the interlayer length margin of the i-th release material relative to the target reference layer.

[0071] In this embodiment, when ΔMik is greater than 0, it indicates that the i-th release material layer has a larger local release length margin relative to the target reference layer. This layer may tend to be relatively loose, have an excessively long path expansion, or have a lagging traction rhythm in the local release section. When ΔMik is less than 0, it indicates that the i-th release material layer has insufficient local release length margin relative to the target reference layer. This layer may tend to be relatively tight, have insufficient path expansion, or have an advanced traction rhythm in the local release section. When ΔMik is close to 0, it indicates that the i-th release material layer and the target reference layer are basically the same in terms of local release length margin, and the rhythm deviation between the two in the local release section is small.

[0072] In other possible implementations, to avoid misjudgments caused by instantaneous disturbances, a moving average can be applied to the interlayer length margin deviation within a preset sampling period. For example, the interlayer length margin deviation ΔMik(t) obtained from multiple consecutive sampling times can be averaged to obtain a smoothed interlayer length margin deviation ΔMik_avg.

[0073] For example, when the composite strip includes a first release material, a second release material, and a third release material, if the first release material is determined as the target reference layer, and the local release length margins of the first, second, and third release materials are 0.8 mm, 1.6 mm, and -0.2 mm, respectively, then the interlayer length margin deviation of the second release material relative to the first release material is: ΔM21 = 1.6mm - 0.8mm = 0.8mm; The deviation of the interlayer length allowance of the third release material relative to the first release material is: ΔM31 = -0.2mm - 0.8mm = -1.0mm.

[0074] Therefore, it can be determined that the second release material has a large local release length margin relative to the target reference layer, while the third release material has an insufficient local release length relative to the target reference layer.

[0075] S1044. Determine the target release length difference of the release material of the corresponding layer based on the deviation of the interlayer length margin.

[0076] In this embodiment, the target release length difference of the corresponding layer can be determined based on the interlayer length margin deviation. The target release length difference is used to characterize the release length difference that the release material of the corresponding layer needs to tend to eliminate during subsequent adjustment.

[0077] In this step, for the i-th release material layer other than the target reference layer, the target release length difference ΔLi_tar can be determined based on its interlayer length margin deviation ΔMik relative to the target reference layer. In one embodiment, the target release length difference ΔLi_tar can be calculated using the following formula: ΔLi_tar=-ηi·ΔMik; Where ηi represents the release length correction coefficient corresponding to the i-th release material layer, 0 < ηi ≤ 1. This release length correction coefficient can be determined based on the structural properties of the material.

[0078] In this embodiment, when ΔMik is greater than 0, it indicates that the local release length margin of the i-th release material layer is larger than that of the target reference layer. At this time, ΔLi_tar is negative, indicating that the subsequent adjustment direction can be to reduce the local release length of the release material layer between the peeling position and the traction position. When ΔMik is less than 0, it indicates that the local release length margin of the i-th release material layer is smaller than that of the target reference layer. At this time, ΔLi_tar is positive, indicating that the subsequent adjustment direction can be to increase the local release length of the release material layer between the peeling position and the traction position.

[0079] Furthermore, to avoid excessive adjustment causing traction impact, the target release length difference can be limited. For example, a maximum allowable release length difference ΔLmax can be set, and the limited target release length difference can be determined as follows: When ΔLi_tar > ΔLmax, let ΔLi_tar = ΔLmax; When ΔLi_tar < -ΔLmax, let ΔLi_tar = -ΔLmax; When -ΔLmax≤ΔLi_tar≤ΔLmax, keep ΔLi_tar unchanged.

[0080] Continuing with the example of the three-layer release material in step S1043 above, if the first release material is the target reference layer, the interlayer length margin deviation of the second release material relative to the first release material is 0.8 mm, the interlayer length margin deviation of the third release material relative to the first release material is -1.0 mm, and the release length correction coefficients of the second and third release materials are both 0.7, then the target release length difference corresponding to the second release material is: ΔL2_tar=-0.7×0.8mm=-0.56mm; The target release length difference corresponding to the third release material is: ΔL3_tar=-0.7×(-1.0mm)=0.70mm.

[0081] S105. Based on the interlayer length allowance deviation, generate at least two interrelated local release length adjustment amounts between the release materials; In this step, a local release length adjustment amount is generated based on the interlayer length margin deviation to adjust the release state of each layer. This adjustment amount guides minor geometric or tension corrections of each layer along the peeling path to achieve realignment of the release cycle.

[0082] In practical implementation, length deviations can be converted into corresponding path correction commands. For example, by changing the position of local guide rollers, adjusting wrap angle changes, or controlling the speed differences of traction rollers, the effective path length of each layer of material within the local release section can be increased or decreased, thereby achieving dynamic correction of the release process. Since there are interrelationships between the layers, this adjustment amount is usually not generated independently, but rather formed under overall coordination constraints, ensuring that the adjustment process of each layer does not introduce new imbalances.

[0083] S106. Increase and / or decrease the local release length of at least one layer of release material between the peeling position and the traction position according to the local release length adjustment amount; In this step, the release path of at least one layer of release material is adjusted in real time based on the generated local release length adjustment. This adjustment process can be completed while the equipment is running continuously without the need for shutdown. Specifically, the release path of the material can be controllably changed by fine-tuning the position of the guide rollers through the control actuator or by altering the local tension distribution through adjusting the output torque of the drive motor.

[0084] In some implementations, a stretchable buffer section structure can be incorporated to create an adjustable path reserve for the material within the local release zone, thereby achieving dynamic compensation for the release length. Through this method, the release materials of different layers, which initially exhibited rhythmic deviations, can gradually move towards a synchronized state.

[0085] See Figure 4 This application provides a specific implementation of step S106, which is described in detail below. The implementation includes: S1061. Determine the preset interlayer coupling coefficient; In this step, the interlayer coupling coefficient between at least two layers of release material is determined. This interlayer coupling coefficient characterizes the degree to which the local release length adjustment of one layer of release material has a correlated impact on the release state of other layers. Since multi-layer release materials are typically formed by separating the same composite strip at the peeling station, and each layer has a stacked relationship before peeling and then enters different traction paths after peeling, changes in the release length of any one layer of release material may affect the release state of other layers through peeling position disturbances, tension transmission, path spatial adjacency, or changes in traction cycle time.

[0086] In one specific implementation, the interlayer coupling coefficient can be represented as K. ij , where K ij This indicates the degree to which the adjustment of the local release length of the j-th release material affects the release state of the i-th release material. K ij The value of K can be a number between 0 and 1. ij When K is large, it indicates a high degree of correlation between the release states of the j-th release material and the i-th release material; when K ij When K is small, it indicates a low degree of correlation between the two; when K is small... ij When the value is 0, it means that the coupling effect of the j-th layer release material on the i-th layer release material is not considered in the current control cycle.

[0087] In some implementations, multiple inter-layer coupling coefficients can be combined to form an inter-layer coupling matrix K: K = [K ij ]n×n; Where n represents the number of layers of release material. For the same layer of release material itself, we can let K ii The value can be 0, or the self-regulating effect can be treated as the main regulating term for this layer. For release materials of adjacent layers, a relatively high interlayer coupling coefficient can be set; for two release materials with far apart spatial paths or highly independent traction paths, a relatively low interlayer coupling coefficient can be set.

[0088] For example, when the composite strip includes a first release material, a second release material, and a third release material, and the first release material and the second release material are spatially adjacent at the peeling station, and the second release material and the third release material are associated with tension disturbances on the traction path, K can be... 12 K 21 K 23 and K 32 Set it to a larger coefficient, and set K... 13 and K 31Set to a smaller coefficient. In this way, the subsequent local release length adjustment can reflect not only the length allowance deviation of the single-layer release material itself, but also the mutual influence between layers.

[0089] In another specific implementation, the interlayer coupling coefficient can also be determined based on calibration results during equipment commissioning or production. For example, during the commissioning phase, a preset release length disturbance can be applied to a certain layer of release material, and the tension, velocity, or release length changes of other layers of release material can be detected. The corresponding interlayer coupling coefficient can then be determined based on the proportional relationship between the change in the response of other layers and the amount of disturbance applied. This method allows the interlayer coupling coefficient to better reflect the actual operating characteristics of the specific equipment structure and material combination.

[0090] S1062. Based on the interlayer coupling coefficient, the local release length adjustment of each layer of release material is coupled and corrected using the interlayer length margin deviation to obtain the corresponding basic adjustment amount. In this embodiment, based on the interlayer length margin deviation corresponding to each layer of release material, the initial adjustment requirement of each layer of release material is first determined, and then the initial adjustment requirement is coupled and corrected by the interlayer coupling coefficient to obtain the basic adjustment amount corresponding to each layer of release material.

[0091] Specifically, the deviation of the interlayer length margin of the i-th release material relative to the target reference layer can be denoted as ΔMi. This interlayer length margin deviation can be obtained from the aforementioned step S104. Based on this interlayer length margin deviation, the initial local release length adjustment amount A of the i-th release material can be determined using the following formula. i : A i =-ηi·ΔM i ; Where ηi represents the adjustment ratio coefficient corresponding to the i-th layer of release material, and 0 < ηi ≤ 1.

[0092] When ΔM i When A is greater than 0, it indicates that the i-th release material layer has a large local release length margin relative to the target reference layer. i A negative value indicates that the local release length of the release material in this layer tends to decrease; when ΔM i When A is less than 0, it indicates that the local release length margin of the i-th release material relative to the target reference layer is insufficient. i A positive value indicates that the local release length of the release material in this layer has an increasing trend.

[0093] However, in actual multilayer synchronous stripping processes, if the adjustment amount is generated independently based solely on the interlayer length margin deviation of each layer, it may still lead to a change in the tension distribution near the stripping position after adjustment of a certain layer, thereby causing a new shift in the release state of adjacent layers. Therefore, this application further utilizes the interlayer coupling coefficient to couple and correct the initial local release length adjustment amount of each layer.

[0094] In one implementation, the basic adjustment amount B of the i-th layer of release material can be determined according to the following relationship: i : B i =A i +Σj≠i K ij · (A) j -A i ); Among them, B i A represents the basic adjustment amount of the i-th layer of release material. i A represents the initial local release length adjustment of the i-th release material layer. j K represents the initial local release length adjustment of the j-th release material layer. ij This represents the interlayer coupling coefficient between the j-th release material and the i-th release material.

[0095] In this embodiment, the basic adjustment amount B of the i-th layer of release material is... i The adjustment is no longer solely determined by the interlayer length margin deviation of the layer itself, but is also constrained by the initial adjustment requirements of other release materials. When the adjustment directions between adjacent layers are close, coupling correction can enhance the overall coordination trend; when the adjustment directions between adjacent layers are opposite, coupling correction can reduce interlayer conflicts caused by excessive adjustment of a single layer.

[0096] S1063. Generate interrelated local release length adjustment quantities based on the constraint relationship between the various basic adjustment quantities.

[0097] In this step, the final local release length adjustment is generated based on the constraint relationship between the various basic adjustment values. This local release length adjustment is used to instruct the subsequent adjustment mechanism to increase or decrease the local release length of the corresponding release material between the peeling position and the traction position.

[0098] In one specific implementation, the constraint relationship between the various basic adjustment quantities may include the following: the total amount constraint that the sum of the local release length adjustment quantities of each layer of release material is equal to the preset total adjustment quantity; the difference constraint that the difference between the local release length adjustment quantities of any two adjacent layers of release material does not exceed the preset difference threshold; and the mapping constraint that there is a proportional correspondence between the local release length adjustment quantities of each layer of release material and the interlayer length margin deviation of the corresponding layer.

[0099] In other words, in this specific implementation, the final generated local release length adjustment amount not only needs to be close to the basic adjustment amounts of each layer, but also needs to satisfy three types of constraints, as follows: Constraint 1: The adjustment amount of each layer is limited by the preset total adjustment amount to avoid abnormal changes in the total release path of the system after multi-layer adjustment; Constraint 2: The difference in adjustment between adjacent layers is limited to avoid excessive relative disturbance between adjacent layers at the stripping station; Constraint 3: The adjustment amount of each layer must still correspond to the deviation of the interlayer length margin to avoid a situation where the direction of deviation contradicts the direction of adjustment.

[0100] Specifically, the adjustment amount of the final local release length generated by the i-th release material can be denoted as U. i Therefore, the local release length adjustment of each layer can satisfy the following total constraint: Σ i =1 to n U i =U total ; Where n represents the number of layers of release material, U total This indicates the preset total adjustment amount.

[0101] In some implementations, when the adjustment objective is primarily to eliminate the relative release length deviation between layers without altering the overall release path length of the multilayer release material, U can be... total Set to 0. At this point, the local release length adjustments of each layer cancel each other out; that is, when the local release length of some layers increases, the local release length of other layers can decrease accordingly to maintain the overall release length adjustment without significant deviation. In other embodiments, when the production line is in the acceleration, deceleration, or material switching phase, U... total It can also be set to a non-zero value according to the overall tension control requirements of the machine, so as to take into account the overall tension compensation or path buffering requirements.

[0102] The local release length adjustment between any two adjacent layers of release material can satisfy the following difference constraint: |U i -U i +1|≤U diff_th ; Among them, U i U represents the local release length adjustment amount of the i-th release material layer. i＋1 U represents the local release length adjustment of the release material in the (i+1)th layer adjacent to the i-th layer. diff_th This indicates the preset difference threshold.

[0103] This difference constraint can prevent excessive differences in the adjustment range between adjacent release materials. For example, if the local release length of the i-th release material is significantly increased while the local release length of the adjacent (i+1)-th release material is significantly decreased, a large tension gradient or path disturbance may form between them near the peeling station, thus affecting the peeling stability.

[0104] The local release length adjustment of each layer of release material and the deviation of the interlayer length allowance of the corresponding layer can satisfy a mapping constraint. This mapping constraint can be expressed as follows: U i ≈-ρi·ΔM i ; Where ρi represents the mapping ratio coefficient corresponding to the i-th layer of release material, ΔM i This represents the deviation of the interlayer length margin of the i-th release material relative to the target reference layer.

[0105] In a specific implementation, the interlayer coupling coefficient in this embodiment can be determined as follows: the interlayer adjacency influence coefficient is determined based on the spatial adjacency relationship of each layer of release material at the peeling station; the resistance coupling coefficient is determined based on the peeling resistance difference of each layer of release material; the dynamic synchronization coefficient is determined based on the synchronous offset trend of each layer of release material in the local release section; and the adjacency influence coefficient, the resistance coupling coefficient, and the dynamic synchronization coefficient are coupled to obtain the interlayer coupling coefficient.

[0106] Specifically, the interlayer adjacency influence coefficient can be determined based on the spatial adjacency relationship of each layer of release material at the peeling station. This interlayer adjacency influence coefficient characterizes the degree of mutual influence between different layers of release materials due to their adjacent stacking order, close peeling positions, or similar peeling paths. In practice, the closer the layer sequence or the smaller the spatial distance between peeling positions, the larger the corresponding interlayer adjacency influence coefficient; conversely, the farther the layer sequence or the higher the degree of independence between peeling paths, the smaller the corresponding interlayer adjacency influence coefficient.

[0107] The resistance coupling coefficient is determined based on the difference in peel resistance between the layers of release material. The peel resistance can be obtained through tension detection, traction motor load feedback, peel force sensor, or preset process parameters. When the difference in peel resistance between the two layers of release material is large, it indicates that they are more likely to produce different release responses during peeling; therefore, a larger resistance coupling coefficient can be set. When the difference in peel resistance is small, a smaller resistance coupling coefficient can be set.

[0108] The dynamic synchronization coefficient is determined based on the synchronous offset trend of each layer of release material in the local release section. This synchronous offset trend can be determined based on the change in the interlayer length margin deviation of each layer of release material over multiple consecutive sampling periods. For example, when the length margin deviations of two layers of release material show similar trends over consecutive sampling periods, it indicates that the operational disturbances they experience are correlated, and a larger dynamic synchronization coefficient can be set; when the offset trends of the two layers differ significantly or are in opposite directions, a smaller dynamic synchronization coefficient can be set.

[0109] In this embodiment, after obtaining the interlayer adjacency influence coefficient, resistance coupling coefficient and dynamic synchronization coefficient in the aforementioned manner, the three coefficients can be weighted and fused to obtain the corresponding interlayer coupling coefficient.

[0110] S107. The adjusted release material is introduced into the traction path for traction to maintain the synchronous peeling rhythm of at least two layers of release material.

[0111] In this step, after the release length of each layer of release material is adjusted locally, the release margin between the peeling position and the traction position tends to be coordinated. Each layer of release material enters its corresponding traction path, allowing it to transition from a partially released state to a stable traction state. The traction mechanism can apply a preset traction force or a preset traction speed to each layer of release material, ensuring that each layer maintains an operating state that matches the main conveyor cycle of the composite strip during subsequent conveying.

[0112] In one embodiment, each layer of release material can be pulled by an independent traction mechanism. Each traction mechanism may include a traction motor, a traction roller, a tension detection unit, and a speed feedback unit. The control system can control the traction speed, traction tension, or roller position of the traction mechanism for that layer based on the adjustment result of the local release length of the corresponding layer of release material, so that the layer of release material does not experience significant secondary relaxation, over-tensioning, or sudden speed changes when entering the traction path.

[0113] In another embodiment, at least two layers of release material can also be pulled by a coordinated traction mechanism. In this case, the traction mechanisms can share data such as traction speed, tension feedback, release length adjustment, and interlayer length allowance deviation, and perform linkage control based on the synchronization relationship between the layers. For example, if a certain layer of release material still shows a slight lag trend after local release length adjustment, the traction speed of that layer can be appropriately increased or the variation range of the traction speed of adjacent layers can be reduced to avoid further expansion of the interlayer beat difference.

[0114] During the traction process, the operating status of each layer of release material can be continuously monitored. This operating status can include at least one of the following: traction speed, running tension, path position, winding speed, traction roller load, and relative position deviation before entering the subsequent processing unit. The control system can determine whether each layer of release material maintains a synchronized peeling cycle based on the above operating status.

[0115] The embodiments of the methods provided in this application have been described in detail above. The embodiments of the systems, devices and storage media provided in this application will be described in detail below.

[0116] See Figure 8 This application provides an embodiment of a timing coordination system for the synchronous peeling of multi-layer release materials, the embodiment including: The first determining unit 801 is used to determine the composite strip to be peeled off, the composite strip including a substrate and at least two layers of release material stacked on the surface of the substrate; The drive peeling unit 802 is used to drive the composite material belt to run along a preset conveying path, and peel the at least two layers of release material from the substrate at the peeling station, forming a peeling position corresponding to each layer of release material and a peeling path extending from the peeling position to the corresponding traction position. The second determining unit 803 is used to determine the difference in interlayer release state in the corresponding local release section after peeling of at least two layers of release material; The third determining unit 804 is used to determine the interlayer length margin deviation of at least two layers of release material between the peeling position and the corresponding traction position based on the difference in interlayer release state. The generation unit 805 is used to generate a local release length adjustment amount that is related to at least two layers of release material based on the interlayer length allowance deviation. Adjustment unit 806 is used to increase and / or decrease the local release length of at least one layer of release material between the peeling position and the traction position according to the adjustment amount of the local release length; The traction unit 807 is used to guide the adjusted release material into the traction path for traction, so as to maintain the synchronous peeling rhythm of at least two layers of release material.

[0117] Optionally, the third determining unit 804 is specifically used for: Based on the difference in release states, a target reference layer is determined from the at least two layers of release material; Obtain the local release length margin of the target reference layer between the peeling position and the traction position; Using the local release length margin of the target reference layer as a reference, determine the interlayer length margin deviation of the release materials of other layers relative to the target reference layer; Based on the deviation of the interlayer length margin, the target release length difference of the release material of the corresponding layer is determined.

[0118] Optionally, the second determining unit 803 is specifically used for: Determine the local release section of the release material between the peeling position and the traction position; Obtain parameter combination data for each layer of release material within the local release zone; Based on the parameter combination data corresponding to each layer of release material, the local release response amount of each layer of release material in the local release section is determined, and the local release response amount satisfies the preset first constraint relationship. The interlayer release state difference is determined based on the difference between the local release response amounts of at least two layers of release material, and the interlayer release state difference satisfies a preset second constraint relationship.

[0119] Optionally, the parameter combination data includes release length parameter, running tension parameter, and conveying speed parameter; The first constraint relationship includes: ; Among them, L i T represents the release length parameter. i V represents the operating tension parameter. i R represents the conveying speed parameter. i L represents the local release response quantity; where L re T is the preset reference release length. ref For the preset reference tension, V ref The preset reference conveying speed is α, β, and γ, which are the weighting coefficients of the corresponding parameters, and α+β+γ=1, where i represents the layer identifier of the release material.

[0120] Optionally, the second constraint relationship includes: ΔR ij =∣R i R j |; Wherein, the ΔR ij The difference in the release state between the layers is indicated by i and j, which represent the layer identifiers of the release material.

[0121] Optionally, the generating unit is specifically used for: Determine the preset interlayer coupling coefficient; Based on the interlayer coupling coefficient, the local release length adjustment of each layer of release material is coupled and corrected using the interlayer length margin deviation to obtain the corresponding basic adjustment amount; Based on the constraint relationships between the various basic adjustment quantities, interrelated local release length adjustment quantities are generated.

[0122] Optionally, the local release length adjustment of each layer of release material satisfies the following constraints: the sum of the local release length adjustment of each layer is equal to the total preset adjustment amount; the difference between the local release length adjustment of any two adjacent layers of release material does not exceed the preset difference threshold; and the mapping constraint that there is a proportional correspondence between the local release length adjustment of each layer of release material and the interlayer length margin deviation of the corresponding layer.

[0123] Optionally, the generating unit 805 is specifically used for: The interlayer adjacency influence coefficient is determined based on the spatial adjacency relationship of each layer of release material at the peeling station. The resistance coupling coefficient is determined based on the difference in peel resistance of each layer of release material. The dynamic synchronization coefficient is determined based on the synchronous offset trend of each layer of release material in the local release section. The adjacency influence coefficient, the resistance coupling coefficient, and the dynamic synchronization coefficient are coupled to obtain the interlayer coupling coefficient.

[0124] See Figure 7 This application also provides another architectural block diagram of the device described in this application. Figure 5 In the middle, the parameter acquisition layer is used to acquire the tension sensor T of each release material layer. i Encoder (speed) V i Displacement / length sensor L i And parameters such as the visual detection unit (path state); the data processing layer is used for parameter combination data acquisition and local release of response quantity R. i Calculation and interlayer release state difference ΔR ij Determine; the cycle time coordination calculation layer is used to determine the interlayer length margin deviation ΔM. ij Generate local release length adjustment amount U i The control layer is used to control the local release length adjustment, traction mechanism speed / tension adjustment, and winding / subsequent process execution, and to control the T value through operation status feedback. i V i L i The path status and other information are fed back to the parameter acquisition layer.

[0125] Please see Figure 9This application also provides a timing coordination device for the synchronous peeling of multi-layer release materials, comprising: Processor 901, memory 902, input / output unit 903, bus 904; The processor 901 is connected to the memory 902, the input / output unit 903, and the bus 904; The memory 902 stores a program, and the processor 901 calls the program to execute any of the methods described above.

[0126] This application also relates to a computer-readable storage medium on which a program is stored, which, when run on a computer, causes the computer to perform any of the methods described above.

[0127] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0128] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0129] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0130] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0131] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A method for coordinating the timing of synchronous peeling of multi-layer release materials, characterized in that, The method includes: The composite strip to be peeled is identified, the composite strip comprising a substrate and at least two layers of release material stacked on the surface of the substrate; The composite material belt is driven to run along a preset conveying path, and at the peeling station, at least two layers of release material are peeled off from the substrate, forming peeling positions corresponding to each layer of release material and peeling paths extending from the peeling positions to the corresponding traction positions. Determine the difference in interlayer release state in the corresponding local release zones of at least two layers of release material after peeling; Based on the difference in interlayer release states, determine the interlayer length margin deviation of at least two layers of release material between the peeling position and the corresponding traction position; Based on the interlayer length margin deviation, at least two layers of release material are associated with local release length adjustment amounts; The local release length of at least one layer of release material is increased and / or decreased between the peeling position and the traction position according to the local release length adjustment amount; The adjusted release material is guided into the traction path for traction to maintain the synchronous peeling rhythm of at least two layers of release material.

2. The method for coordinated peeling of multi-layer release materials according to claim 1, characterized in that, The step of determining the interlayer length allowance deviation of at least two layers of release material between the peeling position and the corresponding traction position based on the difference in interlayer release state includes: Based on the difference in release states, a target reference layer is determined from the at least two layers of release material; Obtain the local release length margin of the target reference layer between the peeling position and the traction position; Using the local release length margin of the target reference layer as a reference, determine the interlayer length margin deviation of the release materials of other layers relative to the target reference layer; Based on the deviation of the interlayer length margin, the target release length difference of the release material of the corresponding layer is determined.

3. The method for coordinated peeling of multi-layer release materials according to claim 1, characterized in that, Determining the difference in interlayer release states in the corresponding local release zones of at least two layers of release material after peeling includes: Determine the local release section of the release material between the peeling position and the traction position; Obtain parameter combination data for each layer of release material within the local release zone; Based on the parameter combination data corresponding to each layer of release material, the local release response amount of each layer of release material in the local release section is determined, and the local release response amount satisfies the preset first constraint relationship. The interlayer release state difference is determined based on the difference between the local release response amounts of at least two layers of release material, and the interlayer release state difference satisfies a preset second constraint relationship.

4. The method for coordinated peeling of multi-layer release materials according to claim 3, characterized in that, The parameter combination data includes release length parameter, running tension parameter, and conveying speed parameter; The first constraint relationship includes: ； Among them, L i T represents the release length parameter. i V represents the operating tension parameter. i R represents the conveying speed parameter. i L represents the local release response quantity; where L re T is the preset baseline release length. ref For the preset reference tension, V ref The preset reference conveying speed is α, β, and γ, which are the weighting coefficients of the corresponding parameters, and α+β+γ=1, where i represents the layer identifier of the release material.

5. The method for coordinated peeling of multi-layer release materials according to claim 4, characterized in that, The second constraint relationship includes: ΔR ij =∣R i R j ∣; Wherein, the ΔR ij The difference in the release state between the layers is indicated by i and j, which represent the layer identifiers of the release material.

6. The method for coordinated timing of synchronous peeling of multi-layer release materials according to claim 1, characterized in that, The step of generating interrelated local release length adjustment amounts between at least two layers of release material based on the interlayer length allowance deviation includes: Determine the preset interlayer coupling coefficient; Based on the interlayer coupling coefficient, the local release length adjustment of each layer of release material is coupled and corrected using the interlayer length margin deviation to obtain the corresponding basic adjustment amount; Based on the constraint relationships between the various basic adjustment quantities, interrelated local release length adjustment quantities are generated.

7. The method for coordinated peeling of multi-layer release materials according to claim 6, characterized in that, The constraints include: The local release length adjustment of each layer of release material satisfies the constraint that the sum of the local release length adjustment of each layer is equal to the total amount of the preset total adjustment. The difference in the local release length adjustment between any two adjacent layers of release material does not exceed the preset difference threshold. A mapping constraint exists between the local release length adjustment of each layer of release material and the deviation of the interlayer length margin of the corresponding layer, which has a proportional correspondence.

8. The method for coordinated peeling of multi-layer release materials according to claim 7, characterized in that, Determine the preset interlayer coupling coefficient, including: The interlayer adjacency influence coefficient is determined based on the spatial adjacency relationship of each layer of release material at the peeling station. The resistance coupling coefficient is determined based on the difference in peel resistance of each layer of release material. The dynamic synchronization coefficient is determined based on the synchronous offset trend of each layer of release material in the local release section. The adjacency influence coefficient, the resistance coupling coefficient, and the dynamic synchronization coefficient are coupled to obtain the interlayer coupling coefficient.

9. A timing coordination system for synchronous peeling of multi-layer release materials, characterized in that, include: The first determining unit is used to determine the composite strip to be peeled off, the composite strip including a substrate and at least two layers of release material stacked on the surface of the substrate; The drive peeling unit is used to drive the composite material belt to run along a preset conveying path, and peel the at least two layers of release material from the substrate at the peeling station, forming a peeling position corresponding to each layer of release material and a peeling path extending from the peeling position to the corresponding traction position. The second determining unit is used to determine the difference in interlayer release state in the corresponding local release section of at least two layers of release material after peeling. The third determining unit is used to determine the interlayer length margin deviation of at least two layers of release material between the peeling position and the corresponding traction position based on the difference in interlayer release state. The generation unit is used to generate local release length adjustment amounts that are interrelated between at least two layers of release material, based on the interlayer length allowance deviation. An adjustment unit is configured to increase and / or decrease the local release length of at least one layer of release material between the peeling position and the traction position based on the local release length adjustment amount. The traction unit is used to guide the adjusted release material into the traction path for traction, so as to maintain the synchronous peeling rhythm of at least two layers of release material.

10. A timing coordination device for synchronous peeling of multi-layer release materials, characterized in that, The device includes: Processor, memory, input / output units, and bus; The processor is connected to the memory, the input / output unit, and the bus; The memory stores a program, which the processor invokes to perform the method as described in any one of claims 1 to 8.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium contains a program that, when executed on a computer, performs the method as described in any one of claims 1 to 8.

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