A method and system for recycling waste from flat blade products

Abstract

This invention discloses a method and system for recycling waste from flatbed die-cutting products, belonging to the field of die-cutting processing technology. The method includes: after the initial punching of the master roll material, isolating the first-punched product, and attaching a transfer film to the remaining product gap waste for waste transfer; using a specially made metal mold to punch positioning holes in the transfer film attached to the product gap waste to be transferred; wherein, the positioning hole punching involves punching the original positioning holes used in the initial punching of the master roll material to create the positioning holes required for the next recycling process; separating the transfer film with the completed positioning hole punching from the product gap waste on the first-punched product to form a recycled material strip; using the positioning holes to position the recycled material strip and cutting it into a second finished product, thus completing the recycling of the flatbed die-cutting product waste.

Description

Technical Field

[0001] This invention belongs to the field of die-cutting technology, specifically relating to a method and system for recycling waste materials from flat die-cut products. Background Technology

[0002] Flatbed die-cutting machines use a reciprocating cutting method with a flat platen and a pressure plate, suitable for small to medium-sized orders and high-precision processing scenarios. Compared with rotary die-cutting, they have advantages such as lower die-plate cost, convenient die change, and higher precision. Conductive fabric, as a common die-cutting material, is prone to fuzzing due to its fiber characteristics, requiring special attention to the sharpness of the die, the hardness of the base film (often requiring PET release film), and the spacing between the die pieces.

[0003] Currently, when using flatbed die-cutting to cut irregularly shaped structures from adhesive main materials, the limited spacing between products means that only the product portion can be retained, and the remaining waste portion must be completely removed using waste removal tape. This results in a waste of main materials, with the waste area typically accounting for about 50% of the total material.

[0004] Therefore, there is an urgent need for a flatbed die-cutting method that can reuse waste materials for recycling and reuse of waste materials from the flatbed die-cutting process. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a method and system for recycling waste from flat die-cutting products. It achieves high-precision recycling of waste through only four core steps: "film application → punching of sleeve holes → peeling → secondary punching". It does not require complex algorithms or additional auxiliary equipment and is easy to implement by modifying existing flat die-cutting production lines.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A method for recycling waste from flat-blade products includes: After the first punching of the master roll material is completed, the first punched product is isolated, and a transfer film is attached to the remaining product gap waste to transfer the waste. Using a specially made metal mold, the transfer film attached to the waste material of the product to be transferred is punched with positioning holes; wherein, the positioning hole punching is to punch out the positioning holes required for the next reuse process using the original positioning holes used in the first punching of the master roll material. The transfer film with the completed positioning hole punching is separated from the product spacer waste on the first punching product to form a recycled material strip. The positioning hole is used to position the recycled material strip and cut it into a second finished product, thus completing the reuse of the flat blade product waste.

[0007] Furthermore, when the master roll material can be reused multiple times, after the first punching of the recycled material strip is completed, the punched products are isolated, and a transfer film is attached to the remaining product gap waste to transfer the waste. Obtain the light transmittance information and initial outline area information of the master roll material; Based on the material's light transmittance, the system automatically selects the transmitted light or reflected light imaging mode to collect the rough outline information of the recycled material strip. Combined with the initial outline area information, it calculates the remaining area percentage of the recycled material strip. The area consumed by the current master roll material in each punching process is obtained to determine the single punching area. Based on the single punching area, the range of the remaining area of ​​the master roll material after multiple punching processes is determined. Compare the remaining area percentage of the recycled material strip with the remaining area percentage range of the master roll material after multiple punchings, and output the current number of times the recycled material strip has been reused, n. Based on the number of reuses n and the actual coordinates of the original positioning hole, the offset of the current positioning hole relative to the original positioning hole is calculated, and the target punching position is obtained for punching the positioning hole.

[0008] Furthermore, before each application of the transfer film, image information of the original positioning holes is acquired, and the hole spacing of the original positioning holes is calculated. If the deviation between the hole spacing and the theoretical spacing exceeds the preset tolerance but does not exceed the preset material elastic limit, before the transfer film is attached, the traction tension at the entrance of the laminating machine is dynamically adjusted according to the pre-stored tension correction model based on the number of reuses n, until the hole spacing returns to the preset tolerance range and the traction ends; where different n corresponds to different tension correction values.

[0009] Furthermore, the tension correction model calculates the traction tension using the following formula: In the formula, This indicates the traction tension at the current entry point of the die-cutting machine. Indicates the standard traction tension of the master roll material. This represents the preset tension correction factor corresponding to the number of reuses, n.

[0010] Furthermore, during the current cycle of inserting the guide post into the original positioning hole, the insertion force-displacement curve of the guide post is collected, and the characteristic parameters of the hole wall contact state are extracted as the first data. Obtain the actual coordinates of the original positioning hole in the current loop, calculate the deviation vector between it and the initial theoretical coordinates, and use it as the second data; Obtain the actual execution parameters of the tension correction step in the current cycle as the third data; wherein, the actual execution parameters include at least the tension adjustment amount in this cycle and the rate of change of the tension adjustment amount relative to the previous cycle; The first, second, and third data are input into a pre-trained waste status assessment model, and the assessment model outputs an estimated value of the remaining effective cycle count for the current waste. Based on the estimated remaining effective number of cycles, the punching offset of the positioning hole is adaptively adjusted.

[0011] A waste recycling system for flat blade products includes: The first laminating machine is used to isolate the first-cut products after the master roll material has been punched for the first time, and to attach a transfer film to the remaining product gap waste. The first die-cutting machine is used to punch positioning holes for the transfer film attached to the waste material between the product to be transferred conveyed by the first laminating machine; wherein, the positioning hole punching is to punch the positioning holes required for the next reuse process using the original positioning holes used in the first punching of the master roll material. The second laminating machine is used to separate the transfer film with the product spacer waste after the positioning hole punching is completed from the first punching product to form a recycled material strip. The third laminating machine is used to attach a layer of pre-set process auxiliary material to the recycled material strip; The second die-cutting machine is used to position the recycled material strip transmitted by the third laminating machine using the positioning holes and cut it into a second finished product, thus completing the reuse of waste material from the flat-blade product.

[0012] Furthermore, a waste recycling system for flat blade products also includes a dual-mode visual recognition module, an area calculation and number determination module, a reference hole measurement module, and a dynamic compensation positioning module. Except for the reference hole measurement module, which is integrated into the first laminating machine, the other modules are all integrated into the first die-cutting machine. The dual-mode visual recognition module includes a switchable light source component and a light source controller, which are a backlight source located below the material belt and a ring light source located above the material belt, respectively, and also includes an industrial camera located above the material belt; The area calculation and number of times determination module is used to obtain the light transmittance information and initial outline area information of the master roll material, and automatically control the dual-mode visual recognition module to select the transmitted light or reflected light imaging mode according to the light transmittance of the material, collect the rough outline information of the recycled material strip, and calculate the remaining area ratio of the recycled material strip by combining the initial outline area information. The area consumed by the current master roll material in each punching process is obtained to determine the single punching area. Based on the single punching area, the range of the remaining area of ​​the master roll material after multiple punching processes is determined. Compare the remaining area percentage of the recycled material strip with the remaining area percentage range of the master roll material after multiple punchings, and output the current number of times the recycled material strip has been reused, n. The reference hole measurement module is used to calculate the actual coordinates of the original positioning hole; The dynamic compensation positioning module is used to calculate the offset of the current positioning hole relative to the original positioning hole based on the number of reuses n and the actual coordinates of the original positioning hole, and thus obtain the target punching position. The first die-cutting machine is also used to complete the punching of the positioning hole according to the target punching position.

[0013] Furthermore, a flat blade product waste recycling system also includes a tension-assisted control module, integrated on the first laminating machine; The reference hole measurement module is also used to acquire image information of the original positioning holes before each application of the transfer film and to calculate the hole spacing of the original positioning holes. The tension-assisted control module is used to dynamically adjust the traction tension at the entrance of the laminator before the transfer film is applied, based on the number of reuses n, by calling a pre-stored tension correction model, when the deviation between the hole spacing and the theoretical spacing exceeds the preset tolerance but does not exceed the preset material elastic limit. The traction ends when the hole spacing returns to the preset tolerance range. Different n values ​​correspond to different tension correction values.

[0014] Furthermore, the tension correction model calculates the traction tension using the following formula: In the formula, This indicates the traction tension at the current entry point of the die-cutting machine. Indicates the standard traction tension of the master roll material. This represents the preset tension correction factor corresponding to the number of reuses, n.

[0015] Furthermore, a waste recycling system for flat blade products also includes: The first data acquisition module, integrated into the guide post drive system of the first die-cutting machine, includes a force sensor and a data acquisition unit, and is used to acquire insertion force-displacement data as the first data during the process of inserting the guide post into the original positioning hole; The reference hole measurement module is used to calculate the actual coordinates of the original positioning hole as secondary data. The third data acquisition module, connected to the tension auxiliary control module, is used to read and record the tension adjustment amount and rate of change for each cycle as the third data. The data fusion and evaluation module is used to receive the first data, the second data, and the third data, input them into the pre-trained waste state evaluation model, and output the estimated number of remaining effective cycles. The adaptive compensation execution module is used to calculate the correction value of the punching offset of the positioning hole for this time based on the estimated value of the remaining effective number of cycles, and feed it back to the first die-cutting machine to perform the punching operation.

[0016] This invention provides a method and system for recycling waste from flatbed die-cut products. By attaching a transfer film to the die-cut interval waste, punching out positioning holes, peeling off the entire material to form a recycled strip, and then performing secondary die-cutting, a complete high-precision closed-loop waste recycling scheme is constructed. Based on this, intelligent mechanisms such as dual-mode area fuzzy recognition based on material transmittance, real-time coordinate measurement of the original positioning holes, dynamic offset compensation driven by the number of reuses, and tension-assisted closed-loop correction are further introduced, achieving the following significant beneficial effects: 1. Solve the problem of waste material positioning to ensure the accuracy of secondary die-cutting. For the first time, a transfer film was used as a carrier. Using the original positioning holes, a specially designed metal die was used to directly punch out positioning holes in the waste area, allowing the waste material, which previously had no reference, to obtain positioning holes with the same precision (±0.05mm) as the first punching. The secondary die cutting uses these positioning holes as the absolute reference, completely avoiding the precision loss caused by traditional edge-finding or visual edge detection, and ensuring stable and reliable dimensions of the recycled finished products.

[0017] 2. Achieve label-free, low-cost automatic recognition of multiple rounds. By measuring the remaining area percentage of waste material using dual-mode vision (transmission / reflection adaptive) and comparing it with a preset threshold, the number of times the current material strip has been reused (n) can be determined. This method requires no laser marking, coding, or permanent marking, avoiding damage to conductive fabric and other functional materials, and incurring no consumable costs. The algorithm is simple, has low hardware requirements, and can reliably distinguish between 2-3 recycling cycles.

[0018] 3. Eliminates accumulated errors, maintaining accuracy even after multiple cycles. Before each cycle, the reference hole measurement module remeasures the actual coordinates of the original positioning holes, dynamically compensating for the offset, rather than relying on theoretical values ​​or the positioning hole coordinates from the previous round, thus "zeroing out" the error each round. Simultaneously, the tension-assisted control module actively corrects hole spacing deviations caused by substrate deformation before film application, ensuring smooth insertion of the guide posts. The combination of these two methods allows the positioning accuracy to remain within ±0.08mm after 2-3 cycles, significantly better than existing single-cycle solutions.

[0019] 4. Compatible with multiple materials, enhancing production line flexibility The dual-mode visual recognition module can automatically switch between backlighting and ambient lighting based on the material's light transmittance. The same system can handle both transparent PET film and opaque conductive fabrics, foams, etc. The tension correction model is parameterized in the form of standard tension and derating factor, so only a few parameters need to be modified to adapt to new materials. This design enables a production line to quickly switch between waste recycling tasks for different products.

[0020] 5. High degree of automation, reducing human intervention. From area recognition, count determination, coordinate measurement, tension correction to dynamic positioning of the socket holes, all intelligent modules are automatically completed by the controller. The operator only needs to input the material type and basic parameters at the initial stage. The system also has safety mechanisms such as elastic limit protection and out-of-tolerance alarm, avoiding tedious operations such as manually measuring hole spacing and manually adjusting tension, and greatly reducing reliance on skilled workers.

[0021] 6. Highly efficient resource utilization, resulting in significant economic and environmental benefits. This invention enables the reprocessing of previously discarded waste materials into qualified products, increasing the overall utilization rate of materials by 30% to 50%. For high-cost roll materials such as conductive cloth, a single production line can save hundreds of thousands of yuan in raw material expenses annually, while also reducing industrial solid waste emissions, which aligns with the trend of green manufacturing.

[0022] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0023] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a flowchart of a method and system for recycling waste from flat blade products according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the system operation of a method and system for recycling waste from flat-blade products according to an embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the system operation of a method and system for recycling waste from flat-blade products according to an embodiment of the present invention. Figure 2 . Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] like Figure 1 As shown, this invention proposes a method for recycling waste from flat-blade products, comprising: S101. After the first punching of the master roll material is completed, isolate the first punched product and attach a transfer film to the remaining product gap waste to transfer the waste. S102. Using a special metal mold, the transfer film attached to the interval waste of the product to be transferred is punched with positioning holes; wherein, the positioning hole punching is to punch the positioning holes required for the next reuse process using the original positioning holes used in the first punching of the master roll material. S103. Separate the transfer film and product spacer waste from the first punched product after the positioning hole punching is completed to form a recycled material strip. Use the positioning hole to position the recycled material strip and cut out the second finished product to complete the reuse of the flat blade product waste. The working principle of the above technical solution is as follows: This invention proposes a method for recycling waste from flat-blade products, which mainly includes three steps; Step 1: After the first punching of the master roll material is completed, the first punched product is isolated, and a transfer film is attached to the remaining product gap waste for waste transfer; Specifically, the master roll material (such as conductive cloth + base film) first goes through the first die-cutting process to punch out the required product shape (such as conductive pad); After punching, the product area and the gap waste area exist simultaneously on the base film; At this time, the first laminating machine operates: using laminating rollers to continuously attach a layer of transfer film (usually PET release film) above the product area and the gap waste area; The function of the transfer film is to "bond" the originally discrete and discontinuous gap waste into a complete sheet structure, providing a physical carrier for subsequent overall peeling and transfer; The meaning of isolating the product is that the transfer film does not directly adhere to the first punched product (or the adhesion is extremely low), ensuring that the product is intact during subsequent separation; Step 2: Using a specially made metal mold, the transfer film attached to the waste material of the product to be transferred is punched with positioning holes. Specifically, the specially made metal mold is the core tool of this step. The mold has two key components: guide pillars and punches. Before punching, the guide pillars are first inserted into the original positioning holes formed during the first punching of the master roll material to achieve precise positioning between the mold and the strip. Subsequently, the punches punch a new set of holes—positioning holes—in the transfer film and the waste material area below it. It should be noted that the positioning holes are mainly on the transfer film and penetrate the conductive cloth of the waste material, but the original bottom film (the film that carries the product in the first punching) is not cut through or is only slightly contacted. Step 3: Separate the transfer film with the completed positioning hole punching from the product spacer waste on the first punched product to form a recycled material strip. Use the positioning holes to position the recycled material strip and cut it into a second finished product. Specifically, after completing the positioning hole punching, the second laminating machine (or the peeling unit of the same laminating machine) peels the transfer film and the waste area adhered to it as a whole off the original base film. At this point, only the first punched product remains on the original base film, which is then wound up normally. The peeled-off "transfer film + waste" combination is the recycled material strip. This recycled material strip already has precise positioning holes. Feed the recycled material strip into the second die-cutting machine. The guide post on the die-cutting machine is inserted into the positioning hole, and the recycled material strip is punched a second time using this hole as the absolute reference to obtain a second finished product (which may be the same or different in shape from the first product). This completes one round of flatbed product waste recycling. The corresponding system collaboration process can be summarized as follows: master roll → first laminator (apply transfer film) → first die-cutting machine (punch fitting holes) → second laminator (peel) → third laminator (apply auxiliary materials) → second die-cutting machine (secondary punching) → finished product; The beneficial effects of the above technical solution are as follows: By using the technical means of "isolation + attaching transfer film + punching positioning holes on the transfer film", the originally unpositioned waste material is given high-precision positioning holes (positioning holes), thus providing a reliable positioning reference for secondary die cutting and solving the core problem that the waste area cannot be directly used for secondary punching in the existing technology; through the reference transfer chain of "original positioning hole → guide post → positioning hole" and the operation of "overall peeling of transfer film", the first punched product remains intact, the waste area is completely transferred, and the two do not interfere with each other, realizing the lossless recycling of waste material. The method is effective because the positioning hole is directly punched out using the original positioning hole (with an accuracy of ±0.05mm) through the guide post-punch connection of the hardware mold. Therefore, there is a definite geometric relationship between the positioning hole and the original hole. When the secondary die-cutting is performed, the positioning hole is used as a reference to ensure that the dimensional accuracy of the secondary finished product is comparable to that of the first punching, which is far superior to the method of finding the edge by relying on the edge or visual inspection. Finally, this method only requires four core steps: "film application → punching positioning holes → peeling → secondary punching" to achieve high-precision recycling of waste materials. It does not require complex algorithms or additional auxiliary equipment and is easy to implement on existing flat die-cutting production lines.

[0027] In one embodiment, a method for recycling waste from flat blade products further includes: When the master roll material can be reused multiple times, after the first punching of the recycled material strip is completed, the punched products are isolated, and a transfer film is attached to the remaining product gap waste to transfer the waste. Obtain the light transmittance information and initial outline area information of the master roll material; Based on the material's light transmittance, the system automatically selects the transmitted light or reflected light imaging mode to collect the rough outline information of the recycled material strip. Combined with the initial outline area information, it calculates the remaining area percentage of the recycled material strip. The area consumed by the current master roll material in each punching process is obtained to determine the single punching area. Based on the single punching area, the range of the remaining area of ​​the master roll material after multiple punching processes is determined. Compare the remaining area percentage of the recycled material strip with the remaining area percentage range of the master roll material after multiple punchings, and output the current number of times the recycled material strip has been reused, n. Based on the number of reuses n and the actual coordinates of the original positioning hole, the offset of the current positioning hole relative to the original positioning hole is calculated, and the target punching position is obtained for punching the positioning hole. The working principle of the above technical solution is as follows: The above technical solution adds an automatic number of times the waste material is reused multiple times to the present invention. The core is to determine the number of times n that the current waste material has been reused through area fuzzy calculation. The specific process can be broken down into the following five steps: Step 1: Obtain material transmittance information and initial contour area information; Specifically, when the master roll material needs to be recycled multiple times (e.g., recycled 2 or 3 times), the system first obtains two key data: one is the material transmittance (transparent / semi-transparent / opaque), which determines which imaging mode to use subsequently; the other is the initial contour area information, that is, the total area of ​​the waste area before the first punching. This data can be obtained from design value input or by measurement by a vision system before the first punching; Step 2: Automatically select the imaging mode based on the material's light transmittance, collect rough outline information, and calculate the remaining area percentage. Specifically, if the material is transparent or semi-transparent (such as PET release film), the light source controller illuminates the backlight (located below the material strip), and the camera collects transmitted light images from above (uncut areas are opaque and dark, while cut-out holes are translucent and bright). The remaining area S can be obtained by counting the area of ​​dark pixels. If the material is opaque (such as conductive cloth or foam), the ring light source (located above the material strip) is illuminated, and the camera collects reflected light images (the reflective properties of the conductive cloth surface are different from those of the exposed base film). The area S of the remaining conductive fabric can also be calculated through image segmentation; then the percentage of the remaining area r = S / ; Step 3: Determine the area of ​​a single punching operation and the range of remaining area after multiple punching operations. Specifically, the system obtains the area consumed by the current master roll material during each punching operation (e.g., product A has an area of ​​200 mm², product B has an area of ​​190 mm²), and calculates the theoretical remaining area after multiple punching operations based on this. For example: the theoretical remaining area after one punching operation... Theoretical remaining after secondary punching Multiple threshold intervals are thus determined, such as 0 times: r > 0.9, 1 time: 0.7 < r ≤ 0.9, 2 times: r ≤ 0.7; Step Four: Compare the actually measured remaining area ratio r with the above threshold intervals, and output the number of reuse times n (0, 1, 2, …) that the current recycled tape has experienced; Step Five: Calculate the offset based on n and the original positioning hole coordinates to obtain the target punching position of the nested positioning hole; specifically, preset an offset table inside the system, which records the offsets (Δx n , Δy n ) of the nested positioning hole relative to the original positioning hole corresponding to different material types and different reuse times n; for example, when n = 1, the offset is (25 mm, 25 mm), and when n = 2, the offset is (30 mm, 30 mm); at the same time, the benchmark hole measurement module measures the actual coordinates of the original positioning hole on the current tape (there may be a deviation from the theoretical position due to the stretching of the bottom film); the dynamic compensation positioning module superimposes the theoretical offset on the actual coordinates, calculates the target punching position of the nested positioning hole this time, and then controls the movable punching needle mechanism (or directly uses a special hardware die to complete the punching process) to move to this position for punching; The beneficial effects of the above technical solution are as follows: The "area fuzzy calculation" replaces permanent marking solutions such as laser marking and two-dimensional codes; by using the physical law that each punching necessarily consumes a certain area, the number of reuse times that have been carried out is judged by measuring the remaining area ratio, completely avoiding damage to the conductive cloth material and not consuming additional consumables (such as ink); through the technical means of "automatically selecting the transmitted light or reflected light imaging mode according to the material light transmittance", the same set of vision system can process both transparent materials (PET film) and opaque materials (conductive cloth, foam), without replacing or adjusting sensors for different materials, greatly improving the versatility of the system; through the operation of "actually measuring the actual coordinates of the original positioning hole in each cycle and then superimposing the offset", rather than relying on the theoretical coordinates or the nested hole coordinates of the previous cycle; in this way, even if the bottom film is stretched, shrunk or distorted, the target position of the nested hole will drift synchronously with the original hole on the bottom film, ensuring that the absolute position of the nested hole relative to the waste area remains unchanged, fundamentally eliminating the cumulative error; finally, this solution only needs to calculate the "remaining area ratio" and compare it with several thresholds, does not require complex contour matching or deep learning models, has low computing power requirements for the industrial control computer, and the industrial camera does not require high resolution (ordinary 2 million pixels are sufficient), and the overall implementation cost is much lower than the contour precise matching solution.

[0028] In one embodiment, a method for reusing flat knife product waste further includes: Before each attachment of the transfer film, collect the image information of the original positioning hole and calculate the hole pitch of the original positioning hole; If the deviation between the hole spacing and the theoretical spacing exceeds the preset tolerance but does not exceed the preset material elastic limit, before the transfer film is attached, the traction tension at the entrance of the laminating machine is dynamically adjusted according to the pre-stored tension correction model based on the number of reuses n, until the hole spacing returns to the preset tolerance range and the traction ends; where different n corresponds to different tension correction values. The working principle of the above technical solution is as follows: Considering that repeated recycling will cause material deformation, this solution adds a tension-assisted compensation mechanism to correct the deviation of the original positioning hole spacing caused by the deformation of the bottom film. Specifically, it can be divided into the following three steps: Step 1: Before each application of the transfer film, image information of the original positioning holes is collected, and the hole spacing of the original positioning holes is calculated. Specifically, the reference hole measurement module (integrated at the inlet end of the first laminating machine) uses an industrial camera to photograph the original positioning holes (usually at least two, distributed on both sides of the material strip) on the edge of the material strip before each round of laminating action; the image processing algorithm calculates the center coordinates of these holes, and then calculates the hole spacing D_actual (e.g., 100.3mm); at the same time, the system stores the theoretical hole spacing D_theory of the material strip (e.g., 100.0mm, determined by the die design value during the first punching). Step 2: Determine if the deviation exceeds the preset tolerance but does not exceed the material's elastic limit. Specifically, the system calculates the deviation ΔD = |D_actual - D_theory|. If ΔD ≤ the preset tolerance (e.g., ±0.2mm), the deformation of the bottom film is within acceptable limits and no adjustment is needed. If ΔD > the preset tolerance, further determine if the current deviation exceeds the elastic limit of the bottom film material (e.g., the elastic elongation of PET film is typically 2%~5%). If it does not exceed the elastic limit, the bottom film can be elastically stretched or retracted through tension adjustment to bring the hole spacing back to the theoretical value. Step 3: Based on the number of reuses n, the pre-stored tension correction model is invoked to dynamically adjust the traction tension at the laminating machine inlet. Specifically, if the adjustment conditions are met, the tension auxiliary control module retrieves the corresponding tension correction value from the pre-stored tension correction model based on the currently determined number of reuses n. Then, the system adjusts the traction tension at the laminating machine inlet by controlling the servo motor or magnetic powder brake; including: If the hole spacing is too large (the bottom membrane is stretched), the tension should be reduced appropriately to allow the bottom membrane to elastically shrink back. If the hole spacing is too small (the bottom film may shrink due to heat), the tension should be increased appropriately to make the bottom film stretch elastically. It is worth noting that the "shrinkage" and "stretching" mentioned above refer to the overall dimensional changes of the entire composite strip, including the bottom film, adhesive layer and conductive cloth, during multiple processing cycles. Tension compensation and dynamic positioning are comprehensive corrections for the composite strip, not just for the bottom PET film. The bottom film is used here only for ease of understanding. The adjustment process is a closed loop: the hole spacing is monitored in real time, and the tension is gradually fine-tuned until the hole spacing returns to the preset tolerance range. Then the tension adjustment is stopped, and the material strip continues to advance into the bonding process. When the deviation is too large, an alarm is issued. The beneficial effects of the above technical solution are as follows: By using the technical means of "measured hole spacing + tension closed-loop correction", the plastic or elastic deformation of the bottom film under the stress of multiple unwinding and punching is actively compensated; it ensures that the spacing of the original positioning holes is consistent with the theoretical design value before each application of the transfer film, thereby ensuring that the guide post can be smoothly inserted and the positioning hole position is accurate when punching the subsequent positioning hole; in multiple recycling scenarios (n=2,3), the bottom film undergoes multiple punching and unwinding, and the cumulative deformation often exceeds the single tolerance; if tension compensation is not performed, the hole spacing deviation will become larger and larger, eventually leading to the guide post not being able to be inserted or the positioning hole being misaligned; this solution "resets" the bottom film state to a state close to the theoretical state through active tension correction, making 2 to 3 or even more cycles possible; at the same time, by using the threshold of "judging whether the elastic limit is exceeded", the permanent damage or tearing of the bottom film due to over-adjustment is avoided; when the deviation is too large (such as exceeding the elastic limit), the system alarms and stops instead of forcibly pulling, protecting the equipment and materials.

[0029] In one embodiment, the tension correction model calculates the traction tension using the following formula: In the formula, This indicates the traction tension at the current entry point of the die-cutting machine. Indicates the standard traction tension of the master roll material. This represents the preset tension correction factor corresponding to the number of reuses, n. ; The working principle of the above technical solution is as follows: As the number of reuses (n) increases, the base film and conductive cloth have undergone multiple tensile and shear stresses, resulting in irreversible plastic deformation accumulating inside the material, and the effective cross-sectional area decreases due to the increase in pores; if standard tension is continued to be used... This can lead to further elongation of the material, drift of the positioning hole spacing, or even tearing. This technical solution uses a tension correction coefficient table pre-stored in the system, combined with a tension correction model, to gradually reduce the tension (multiplied by a coefficient less than 1) so that the traction force matches the current mechanical strength of the material, ensuring stable material feeding while avoiding excessive stretching. Taking conductive fabric as an example, the tension correction coefficient table is shown below: The beneficial effects of the above technical solution are as follows: By using a tension correction model, tension compensation is transformed from a "qualitative" to a "quantitative" process, allowing the tension value recovered each time to be accurately calculated based on the theoretical model, eliminating the need for repeated experimental calibration and greatly simplifying the process setup; this model is a linear model, requiring only the storage of n and... A mapping table (usually n≤3, the table is very small) allows the PLC or industrial computer to calculate the target tension in real time, without the need for complex PID online self-tuning or machine learning models. This results in fast response and high stability. Finally, for different materials, only modifications are needed. and Table (e.g., PET film) =0.08, conductive cloth =0.10), the formula itself does not need to be changed; this parameterized design allows the system to quickly adapt to multiple recycling processes of various materials.

[0030] In one embodiment, a method for recycling waste from flat blade products further includes: During the current cycle of inserting the guide post into the original positioning hole, the insertion force-displacement curve of the guide post is collected, and the characteristic parameters of the hole wall contact state are extracted as the first data. Obtain the actual coordinates of the original positioning hole in the current loop, calculate the deviation vector between it and the initial theoretical coordinates, and use it as the second data; Obtain the actual execution parameters of the tension correction step in the current cycle as the third data; wherein, the actual execution parameters include at least the tension adjustment amount in this cycle and the rate of change of the tension adjustment amount relative to the previous cycle; The first, second, and third data are input into a pre-trained waste status assessment model, and the assessment model outputs an estimated value of the remaining effective cycle count for the current waste. Based on the estimated remaining effective number of cycles, the punching offset of the positioning hole is adaptively adjusted. The working principle of the above technical solution is as follows: In actual flat die-cutting processes, the number of recycling cycles for different materials facing different finished product die-cutting cannot be predicted. To further improve the ultimate utilization of waste materials during multiple cycles, this solution integrates physical signals from three different dimensions in the waste material recycling process to predict the remaining lifespan of the waste material and actively adjust the punching parameters of the sleeve hole before precision collapse occurs. This ensures that when the number of waste material recycling cycles exceeds 3, the entire waste material recycling die-cutting control system still has reliable decision-making capabilities in the high-cycle-count region. To better illustrate this solution, this embodiment is described in the form of step-by-step breakdown: Step 1: In each cycle, the guide post needs to be inserted into the original positioning hole to perform positioning; this "insertion" action itself is a natural mechanical probing process. In practice, a piezoelectric force sensor (such as Kistler 9327C) is installed in series in the guide post drive system (such as a cylinder or servo electric cylinder) of the die-cutting machine. The force signal is continuously collected during the entire insertion stroke of the guide post at a sampling rate of 1kHz to 5kHz. At the same time, the displacement signal is collected synchronously through a displacement sensor (such as a grating ruler) connected to the guide post. The two are combined to generate the force-displacement curve of the cycle. The following characteristic parameters of the hole wall contact state can be extracted from this curve: Peak resistance of guide post insertion F_peak: The maximum resistance encountered by the guide post when passing through the positioning hole; this value reflects the minimum diameter of the hole wall—the more severe the wear of the hole wall (the larger the hole diameter), the lower the peak resistance; the peak resistance may increase when the hole wall is deformed (roundness deteriorates) or there are foreign objects in the hole; Average resistance during guide post insertion F_avg: The average resistance during the entire insertion stroke; this value reflects the overall roughness and friction state of the hole wall; Force decay curve shape when inserted into place: After the guide post is fully inserted, the resistance decreases from the peak value to the stable value. If the hole wall is severely worn and there is a gap between the guide post and the hole wall, the force decay curve will show a rapid decrease and then tend to flatten. If the hole wall and the guide post are still in tight fit, the decay curve will show a slow decrease. Among the above parameters, peak resistance and average resistance mainly reflect the degree of geometric wear of the hole wall, while the shape of the force attenuation curve reflects the tightness of the fit between the hole wall and the guide post. By combining the two, it can be determined whether the hole wall of the positioning hole has gradually worn, enlarged, or deformed due to repeated insertion of the guide post. Step 2: Before punching the positioning holes in each cycle, take an image of the original positioning holes on the edge of the strip; calculate the center coordinates of at least two original positioning holes using an image processing algorithm (such as subpixel edge detection); Then calculate the following deviation vector: Hole spacing deviation: The difference between the measured hole spacing and the theoretical hole spacing; this value reflects the degree of stretching or shrinkage of the bottom film in the material feeding direction; Overall position offset: The offset vector of the average value of the center coordinates of all measured holes relative to the theoretical position; this value reflects the overall offset of the entire strip in the width direction and / or the feeding direction. The aforementioned deviation vector directly reflects the degree of spatial deviation of the positioning reference in the current cycle; the larger the hole spacing deviation, the more severe the bottom film stretching; the larger the overall position offset, the more severe the overall deviation of the material strip. Step 3: Read the following parameters for the current cycle from the tension controller of the laminating machine: The tension adjustment amount ΔP_actual for this cycle: the actual amount of tension change applied to bring the hole spacing back to the theoretical value; this value reflects the correction force required for the deformation of the bottom film in the current cycle; The rate of change of tension adjustment relative to the previous cycle: ΔP_actual(n) - ΔP_actual(n-1); this value reflects the acceleration of the substrate deformation - if the rate of change is consistently positive and continuously increasing, it indicates that the substrate is deteriorating at an accelerated rate; The above parameters reflect the "effort" the control system puts in to overcome deformation; if greater tension is required in each round to pull the hole spacing back to the theoretical value, it indicates that the reversible deformation capacity of the bottom film is decreasing and approaching the plastic deformation limit. Step four involves fusing the first data (mechanical characteristics), the second data (visual bias), and the third data (control parameters) for a comprehensive judgment. This is because each of these data has limitations, which can be compensated for by data from other dimensions. When all three independent dimensions show signs of degradation, the false alarm probabilities of each dimension are independent of each other, and the probability of a false alarm is extremely low (if the false alarm rate of each dimension is 10%, then the probability of a false alarm from all three simultaneously is 0.1³ = 0.001). Therefore, the reliability of the fused judgment is much higher than that of any single dimension. After the three are integrated, the evaluation model can output a key prediction value of the remaining effective loop count based on the patterns learned from historical data. The pre-trained evaluation model is constructed as follows: During the equipment debugging or early production phase, the first, second, and third data points of each cycle are collected, and the cycle number at which the defective material ultimately experiences a precision collapse (i.e., the deviation of the socket position exceeds the allowable range, leading to product scrap). Using the multi-dimensional feature data of each cycle as input and the remaining number of cycles before the precision collapse as the label, a regression model (such as random forest regression or a lightweight neural network) is trained. After training, the model can receive the three sets of data from the current cycle in actual production and output a predicted value of the remaining effective cycle count. The correction coefficient is negatively correlated with the predicted value of the remaining effective cycle count: the lower the predicted value, the larger the correction coefficient. Step 5: Based on the predicted values ​​output by the model, execute the tiered compensation strategy: Preferably, if the estimated value is not less than 2, it indicates that the waste material is in good condition, and the standard offset is used for punching the sleeve hole; If the estimated value is equal to 1, it means that the scrap is nearing the end of its life. Apply a correction factor to the standard offset (e.g., multiply by an expansion factor of 1.1 to 1.3) to appropriately expand the position of the sleeve hole, reserving a larger dimensional tolerance window for the last cycle, and ensuring that even if the scrap undergoes slight deformation in the last cycle, the sleeve hole can still guarantee the qualification of the secondary product. If the estimated value is 0, it means that the model has determined that there is no remaining effective recycling of waste, terminates the current cycle, marks the waste as non-recyclable and discharges it, or issues an alarm for staff to handle. It is worth noting that the threshold of the estimated value here is related to the training data and training accuracy used in the pre-trained evaluation model, and should not limit this approach. The beneficial effects of the above technical solution are as follows: 1. Inserting the guide post into the original positioning hole is an action that must be performed in each cycle. In the prior art, this action is only used for mechanical positioning, and the force signal generated in the process is regarded as "noise" and ignored. This solution is the first to collect force-displacement data in this action and use it for waste status assessment. Without adding extra processes or reducing the production cycle, the key status information of the waste positioning system is obtained. 2. Mechanical data, visual data, and control parameters each reflect different aspects of the deterioration of the positioning system, and each has its own blind spots. After the three are integrated, the model can simultaneously perceive the "degree of hole wall wear" (mechanical), the "degree of deviation from the reference space" (visual), and the "trend of change in the system correction force" (control), forming a complete picture of the health status of the waste positioning system. The false alarm probabilities of each dimension are independent of each other, and the probability of false alarm is extremely low. Therefore, the reliability of the integrated judgment is much higher than that of any single dimension indicator. 3. The logic of existing technology is "problem detection → problem solving": precision deviation → tension correction; hole spacing exceeding the standard → parameter adjustment; this is a passive response mode, and measures can only be taken after the problem occurs; the logic of this solution is "problem prediction → advance preparation": before the precision collapses, the remaining life is predicted through the model, and the punching offset of the sleeve hole is adjusted in advance; this is an active prediction mode - the compensation action occurs before the problem occurs, rather than after it occurs; 4. In conventional flat blade material recycling, the reliability of the waste positioning system typically declines significantly after more than three cycles; this phenomenon stems from physical degradation at multiple levels: The ability of the area method to distinguish the number of times decreases with each round: the remaining area decreases in the interval of each round, and after the third cycle, the area difference between adjacent times may only be 2% to 3%. The absolute error of the area measurement can overwhelm the effective signal, leading to misjudgment of the number of times. The effectiveness of tension correction of hole spacing decreases with each cycle: As the bottom film accumulates plastic deformation, a larger amount of tension correction is required in each cycle to barely pull back the hole spacing. The side effects of the correction action itself (such as stress concentration at the edge of the strip) gradually outweigh its positive effects. The extrapolation error of the tension formula accumulates with the number of cycles: The material can be calibrated experimentally within a limited number of cycles, but after the third cycle, the material properties deteriorate nonlinearly, and the extrapolation error of the calibration value increases with each cycle, resulting in a continuous increase in the deviation between the calculated tension value and the actual requirement. When the above-mentioned single-dimensional detection methods all have unreliable factors, the operator faces a typical high-risk decision dilemma: if recycling continues, the accuracy may collapse in the next cycle, resulting in the scrapping of the entire roll of product; if it is terminated in advance, the last valuable recycling opportunity may be missed. This decision dilemma is not significant when the number of cycles is ≤2, but becomes a bottleneck restricting the further improvement of waste utilization rate after more than 3 cycles. To address this issue, this solution introduces a fusion and prediction model of three independent data dimensions (guide post insertion force-displacement, measured coordinates of the original positioning hole, and rate of change of tension adjustment). A redundant verification mechanism is established in the high-cycle-count region, enabling the system to proactively predict the remaining effective cycle count of the waste material before accuracy collapse occurs, and adaptively adjust the punching parameters of the sleeve hole accordingly, thereby maximizing the utilization value of the waste material while ensuring product yield.

[0031] like Figure 2 , Figure 3 The present invention also proposes a waste recycling system for flat blade products, comprising: The first laminating machine is used to isolate the first-cut products after the master roll material has been punched for the first time, and to attach a transfer film to the remaining product gap waste. The first die-cutting machine is used to punch positioning holes for the transfer film attached to the waste material between the product to be transferred conveyed by the first laminating machine; wherein, the positioning hole punching is to punch the positioning holes required for the next reuse process using the original positioning holes used in the first punching of the master roll material. The second laminating machine is used to separate the transfer film with the product spacer waste after the positioning hole punching is completed from the first punching product to form a recycled material strip. The third laminating machine is used to attach a layer of pre-set process auxiliary material to the recycled material strip; the auxiliary material can be selected from new release film, double-sided tape or protective film and other process auxiliary materials; the specific type of auxiliary material is determined by the requirements of the final product. The second die-cutting machine is used to position the recycled material strip transmitted by the third laminating machine using the positioning holes and cut it into a second finished product, thus completing the reuse of waste material from the flat-blade product.

[0032] In one embodiment, a flat blade product waste recycling system further includes a dual-mode visual recognition module, an area calculation and number determination module, a reference hole measurement module, and a dynamic compensation positioning module. Except for the reference hole measurement module, which is integrated into the first laminating machine, the other modules are all integrated into the first die-cutting machine. The dual-mode visual recognition module includes a switchable light source component and a light source controller, which are a backlight source located below the material belt and a ring light source located above the material belt, respectively, and also includes an industrial camera located above the material belt; The area calculation and number of times determination module is used to obtain the light transmittance information and initial outline area information of the master roll material, and automatically control the dual-mode visual recognition module to select the transmitted light or reflected light imaging mode according to the light transmittance of the material, collect the rough outline information of the recycled material strip, and calculate the remaining area ratio of the recycled material strip by combining the initial outline area information. The area consumed by the current master roll material in each punching process is obtained to determine the single punching area. Based on the single punching area, the range of the remaining area of ​​the master roll material after multiple punching processes is determined. Compare the remaining area percentage of the recycled material strip with the remaining area percentage range of the master roll material after multiple punchings, and output the current number of times the recycled material strip has been reused, n. The reference hole measurement module is used to calculate the actual coordinates of the original positioning hole; The dynamic compensation positioning module is used to calculate the offset of the current positioning hole relative to the original positioning hole based on the number of reuses n and the actual coordinates of the original positioning hole, and thus obtain the target punching position. The first die-cutting machine is also used to complete the punching of the positioning hole according to the target punching position.

[0033] In one embodiment, a flat blade product waste recycling system further includes a tension auxiliary control module integrated on the first laminating machine; The reference hole measurement module is also used to acquire image information of the original positioning holes before each application of the transfer film and to calculate the hole spacing of the original positioning holes. The tension-assisted control module is used to dynamically adjust the traction tension at the entrance of the laminator before the transfer film is applied, based on the number of reuses n, by calling a pre-stored tension correction model, when the deviation between the hole spacing and the theoretical spacing exceeds the preset tolerance but does not exceed the preset material elastic limit. The traction ends when the hole spacing returns to the preset tolerance range. Different n values ​​correspond to different tension correction values.

[0034] In one embodiment, the tension correction model calculates the traction tension using the following formula: In the formula, This indicates the traction tension at the current entry point of the die-cutting machine. Indicates the standard traction tension of the master roll material. This represents the preset tension correction factor corresponding to the number of reuses, n.

[0035] In one embodiment, a flat blade product waste recycling system further includes: The first data acquisition module, integrated into the guide post drive system of the first die-cutting machine, includes a force sensor and a data acquisition unit, and is used to acquire insertion force-displacement data as the first data during the process of inserting the guide post into the original positioning hole; The reference hole measurement module is used to calculate the actual coordinates of the original positioning hole as secondary data. The third data acquisition module, connected to the tension auxiliary control module, is used to read and record the tension adjustment amount and rate of change for each cycle as the third data. The data fusion and evaluation module is used to receive the first data, the second data, and the third data, input them into the pre-trained waste state evaluation model, and output the estimated number of remaining effective cycles. The adaptive compensation execution module is used to calculate the correction value of the punching offset of the positioning hole for this time based on the estimated value of the remaining effective cycle count, and feed it back to the first die-cutting machine to perform the punching operation; wherein, if the estimated value is greater than or equal to 2, the standard offset is used; if the estimated value is equal to 1, a correction coefficient is applied to the standard offset; if the estimated value is equal to 0, the current cycle is terminated and the waste is marked as non-recyclable.

[0036] The working principle and beneficial effects of the above system modules have been explained in the corresponding methods section above, and will not be repeated here.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A method for recycling waste from flat-blade products, characterized in that, include: After the first punching of the master roll material is completed, the first punched product is isolated, and a transfer film is attached to the remaining product gap waste to transfer the waste. Using a specially made metal mold, positioning holes are punched into the transfer film attached to the waste material of the product to be transferred; wherein, the positioning hole punching is to punch out the positioning holes required for the next reuse process using the original positioning holes used in the first punching of the master roll material. The transfer film with the completed positioning hole punching is separated from the product spacer waste on the first punching product to form a recycled material strip. The positioning hole is used to position the recycled material strip and cut it into a second finished product, thus completing the reuse of the flat blade product waste.

2. The method for recycling waste from flat-blade products according to claim 1, characterized in that, Also includes: When the master roll material can be reused multiple times, after the first punching of the recycled material strip is completed, the punched products are isolated, and a transfer film is attached to the remaining product gap waste to transfer the waste. Obtain the light transmittance information and initial contour area information of the master roll material; Based on the material's light transmittance, the system automatically selects the transmitted light or reflected light imaging mode to collect the rough outline information of the recycled material strip. Combined with the initial outline area information, it calculates the remaining area percentage of the recycled material strip. The area consumed by the current master roll material in each punching process is obtained to determine the single punching area. Based on the single punching area, the range of the remaining area of ​​the master roll material after multiple punching processes is determined. Compare the remaining area percentage of the recycled material strip with the remaining area percentage range of the master roll material after multiple punchings, and output the current number of times the recycled material strip has been reused, n. Based on the number of reuses n and the actual coordinates of the original positioning hole, the offset of the current positioning hole relative to the original positioning hole is calculated, and the target punching position is obtained for punching the positioning hole.

3. The method for recycling waste from flat-blade products according to claim 2, characterized in that, Also includes: Before each transfer film is applied, image information of the original positioning holes is acquired, and the hole spacing of the original positioning holes is calculated. If the deviation between the hole spacing and the theoretical spacing exceeds the preset tolerance but does not exceed the preset material elastic limit, before the transfer film is attached, the traction tension at the entrance of the laminating machine is dynamically adjusted according to the pre-stored tension correction model based on the number of reuses n, until the hole spacing returns to the preset tolerance range and the traction ends; where different n correspond to different tension correction values.

4. The method for recycling waste from flat-blade products according to claim 3, characterized in that, The tension correction model calculates the traction tension using the following formula: In the formula, This indicates the traction tension at the current entry point of the die-cutting machine. Indicates the standard traction tension of the master roll material. This represents the preset tension correction factor corresponding to the number of reuses, n.

5. The method for recycling waste from flat-blade products according to claim 4, characterized in that, Also includes: During the current cycle of inserting the guide post into the original positioning hole, the insertion force-displacement curve of the guide post is collected, and the characteristic parameters of the hole wall contact state are extracted as the first data. Obtain the actual coordinates of the original positioning hole in the current loop, calculate the deviation vector between it and the initial theoretical coordinates, and use it as the second data; Obtain the actual execution parameters of the tension correction step in the current cycle as third data; wherein, the actual execution parameters include at least the tension adjustment amount in this cycle and the rate of change of the tension adjustment amount relative to the previous cycle; The first data, the second data, and the third data are input into a pre-trained waste status assessment model, which outputs an estimated value of the remaining effective cycle count of the current waste. Based on the estimated remaining effective number of cycles, the punching offset of the positioning hole is adaptively adjusted.

6. A system for recycling waste from flat-blade products, characterized in that, include: The first laminating machine is used to isolate the first-cut products after the master roll material has been punched for the first time, and to attach a transfer film to the remaining product gap waste. The first die-cutting machine is used to punch positioning holes on the transfer film attached to the waste material between the product to be transferred conveyed by the first laminating machine; wherein, the positioning hole punching is to punch the positioning holes required for the next reuse process by using the original positioning holes used in the first punching of the master roll material. The second laminating machine is used to separate the transfer film with the product spacer waste after the positioning hole punching is completed from the first punching product to form a recycled material strip. The third laminating machine is used to attach a layer of pre-set process auxiliary material to the recycled material strip; The second die-cutting machine is used to position the recycled material strip transmitted by the third laminating machine using the positioning holes and cut it into a second finished product, thus completing the reuse of waste material from the flat-blade product.

7. A waste recycling system for flat-blade products according to claim 6, characterized in that, It also includes a dual-mode visual recognition module, an area calculation and number determination module, a reference hole measurement module, and a dynamic compensation positioning module. Except for the reference hole measurement module, which is integrated into the first bonding machine, the other modules are all integrated into the first die-cutting machine. The dual-mode visual recognition module includes a switchable light source component and a light source controller, which are respectively a backlight source set below the material belt and a ring light source set above the material belt, and also includes an industrial camera set above the material belt; The area calculation and number of times determination module is used to obtain the light transmittance information and initial outline area information of the master roll material, and automatically control the dual-mode visual recognition module to select the transmitted light or reflected light imaging mode according to the light transmittance of the material, collect the rough outline information of the recycled material strip, and calculate the remaining area ratio of the recycled material strip by combining the initial outline area information. The area consumed by the current master roll material in each punching process is obtained to determine the single punching area. Based on the single punching area, the range of the remaining area of ​​the master roll material after multiple punching processes is determined. Compare the remaining area percentage of the recycled material strip with the remaining area percentage range of the master roll material after multiple punchings, and output the current number of times the recycled material strip has been reused, n. The reference hole measurement module is used to calculate the actual coordinates of the original positioning hole; The dynamic compensation positioning module is used to calculate the offset of the current positioning hole relative to the original positioning hole based on the number of reuses n and the actual coordinates of the original positioning hole, and to obtain the target punching position. The first die-cutting machine is also used to punch the positioning hole according to the target punching position.

8. A waste recycling system for flat-blade products according to claim 7, characterized in that, It also includes a tension-assisted control module, integrated into the first laminating machine; The reference hole measurement module is also used to acquire image information of the original positioning holes before each application of the transfer film and to calculate the hole spacing of the original positioning holes. The tension-assisted control module is used to dynamically adjust the traction tension at the inlet of the laminating machine before the transfer film is attached, based on the number of reuses n, by calling a pre-stored tension correction model, when the deviation between the hole spacing and the theoretical spacing exceeds the preset tolerance but does not exceed the preset material elastic limit. The traction ends when the hole spacing returns to the preset tolerance range. Different n values ​​correspond to different tension correction values.

9. A waste recycling system for flat-blade products according to claim 8, characterized in that, The tension correction model calculates the traction tension using the following formula: In the formula, This indicates the traction tension at the current entry point of the die-cutting machine. Indicates the standard traction tension of the master roll material. This represents the preset tension correction factor corresponding to the number of reuses, n.

10. A waste recycling system for flat-blade products according to claim 9, characterized in that, Also includes: The first data acquisition module, integrated into the guide post drive system of the first die-cutting machine, includes a force sensor and a data acquisition unit, and is used to acquire insertion force-displacement data as the first data during the process of inserting the guide post into the original positioning hole; The reference hole measurement module is used to calculate the actual coordinates of the original positioning hole as secondary data. The third data acquisition module, connected to the tension auxiliary control module, is used to read and record the tension adjustment amount and rate of change for each cycle as the third data. The data fusion and evaluation module is used to receive the first data, the second data, and the third data, input them into the pre-trained waste state evaluation model, and output the estimated number of remaining effective cycles. The adaptive compensation execution module is used to calculate the correction value of the punching offset of the positioning hole for this time based on the estimated value of the remaining effective number of cycles, and feed it back to the first die-cutting machine to perform the punching operation.

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