Wear-resistant and puncture-proof shoe sole and preparation system and method thereof

Abstract

The invention relates to the technical field of sole preparation, in particular to a wear-resistant anti-puncture sole and a preparation system and method.The sole is integrally formed by multiple layers of ultra-high molecular weight polyethylene fibers through the needling reinforcement technology, the sole comprises an upper attaching layer, a protective layer and a lower wear-resistant layer which are sequentially arranged from top to bottom, the upper attaching layer is used for being bonded with an upper, and the protective layer is used for being bonded with the lower wear-resistant layer; the surface is provided with micro rough textures for improving the bonding strength; the protective layer is of a compact composite structure formed by high-pressure needling of multiple layers of ultra-high molecular weight polyethylene fiber nets, fibers are arranged in a three-dimensional staggered mode, and seamless connection is formed between the layers through fiber entanglement; and the lower wear-resistant layer is compounded on the bottom surface of the core protective layer and consists of a polyurethane elastomer doped with nano aluminum oxide particles, and anti-skid patterns are pressed on the surface of the lower wear-resistant layer. The sole integrates the characteristics of ultra-strong anti-puncture protection, excellent wear resistance and durability, reliable anti-skid performance, light weight, comfort and the like, and is suitable for professional fields with extreme requirements on foot safety.

Description

Technical Field

[0001] This invention relates to the field of shoe sole manufacturing technology, and in particular to a wear-resistant and puncture-resistant shoe sole and its manufacturing system and method. Background Technology

[0002] In high-risk professional fields such as engineering operations and outdoor exploration, the performance of foot protection equipment is crucial, especially the puncture resistance and abrasion resistance of the soles, which directly affect the user's safety and work efficiency. Traditional protective shoe soles often use rigid interlayers such as steel plates and composite material plates to achieve puncture resistance. However, such structures generally have inherent defects such as heavy weight, poor flexibility, and low wearing comfort. Moreover, the interface between the rigid interlayer and the surrounding materials is prone to separation under bending stress, affecting the overall reliability of protection. On the other hand, although conventional rubber or polyurethane soles have a certain degree of abrasion resistance, their puncture resistance is limited and they are difficult to deal with the threat of penetration by sharp foreign objects on their own.

[0003] In recent years, ultra-high molecular weight polyethylene (UHMWPE) fibers have begun to be explored for application in the field of flexible protective equipment due to their extremely high specific strength and excellent cut and puncture resistance. However, effectively integrating UHMWPE fibers into the sole structure and achieving a balance between protection, abrasion resistance, lightweight, and comfort remains a technical challenge. Simply using fiber layering or simple bonding methods can easily lead to problems such as insufficient interlayer bonding, loose structure, and short-lasting protective effects. Summary of the Invention

[0004] To address the aforementioned issues, this invention combines superior puncture resistance, excellent wear resistance and durability, reliable anti-slip properties, and lightweight comfort, making it particularly suitable for wear-resistant and puncture-resistant shoe soles and their preparation systems and methods in professional fields with extreme requirements for foot safety, such as military and police operations, fire and disaster relief, and outdoor work.

[0005] The technical solution adopted in this invention is: a wear-resistant and puncture-resistant shoe sole, wherein the shoe sole is integrally formed by a multi-layer ultra-high molecular weight polyethylene fiber through a needle-punching reinforcement process. The shoe sole includes an upper bonding layer, a protective layer, and a lower wear-resistant layer arranged sequentially from top to bottom. The upper bonding layer is used to bond with the shoe upper and has a micro-rough texture on its surface to increase the bonding strength. The protective layer is a dense composite structure formed by high-pressure needle punching of multiple layers of ultra-high molecular weight polyethylene fiber mesh, with the fibers arranged in a three-dimensional interlaced pattern and the layers forming a seamless connection through fiber entanglement. The lower wear-resistant layer is composited on the bottom surface of the core protective layer and is composed of a polyurethane elastomer doped with nano-alumina particles, with an anti-slip pattern pressed onto its surface. The ultra-high molecular weight polyethylene fiber of the protective layer has a single filament fineness of 1.0~2.5 decibels, a molecular weight ≥1.5 million, a fiber mesh areal density of 100~300 g / m², and a needle punching density of 150~400 needles / cm².

[0006] A further improvement to the above scheme is that the total thickness of the protective layer is 2.0~5.0mm, its needle penetration depth is 60%~80% of the layer thickness, the fiber volume fraction is not less than 35%, and it can withstand a static puncture force ≥1000N.

[0007] A further improvement to the above scheme is that the upper bonding layer is a plasma-treated ultra-high molecular weight polyethylene nonwoven fabric with a surface energy ≥45mN / m and a thickness of 0.3~0.8mm; the nano-alumina particles of the lower wear-resistant layer have a particle size of 20~80nm, a filling amount of 5%~15%wt, and a wear amount ≤40mg.

[0008] A further improvement to the above scheme is that the core protective layer has a gradient needle-punched structure in the interface area near the upper bonding layer and / or the lower wear-resistant layer, and the needle-punched density in the interface area gradually decreases from the inside to the outside, forming a hardness gradient transition zone.

[0009] A further improvement to the above solution is that it also includes an edge-sealing structure disposed at the edge of the protective layer, wherein the edge-sealing structure is formed by injection molding of thermoplastic polyurethane to encapsulate the edges of each layer of the sole as a whole.

[0010] A manufacturing system for producing abrasion-resistant and puncture-resistant shoe soles includes a raw material processing module, a needle punching module, a composite processing module, and an intelligent control center connected in sequence. The raw material processing module is used to open, mix, and comb ultra-high molecular weight polyethylene fibers to form a uniform fiber web. The needle punching module is used to receive the fiber web and perform multi-layer stacking and needle punching reinforcement to form a shoe sole preform. The composite processing module is used to laminate an upper bonding layer and a lower abrasion-resistant layer onto the upper and lower surfaces of the shoe sole preform. The intelligent control center is equipped with a central processing unit, a data storage unit, a human-machine interface, and a communication interface. The intelligent control center is connected to the local controllers of the raw material processing module, the needle punching module, and the composite processing module via an industrial Ethernet, receives sensor data from each module, and sends control commands to each module based on a preset process formula and real-time quality feedback to coordinate the entire manufacturing process.

[0011] A further improvement to the above scheme is that the raw material processing module includes a wool blending machine, a cotton blending bin, an opening machine, a pneumatic cotton box, and a carding machine arranged in sequence; the outlet of the carding machine is equipped with an online surface density detector, which is connected to the intelligent control center to provide real-time feedback of fiber web surface density data, and the intelligent control center dynamically adjusts the output air pressure of the pneumatic cotton box and the working parameters of the carding machine accordingly.

[0012] A further improvement to the above scheme is that the needle punching module includes an automatic layup unit, a pre-punching unit, and a main punching unit. The automatic layup unit has a multi-axis robotic arm and a vision positioning system for precisely stacking multiple layers of fiber web. The pre-punching unit includes a pair of opposing roller pre-punching devices for pre-compacting the stacked fiber web. The main punching unit includes at least two sets of high-speed needle punching machines with needles on the needle plate arranged in a diamond pattern, which can alternately punch the upper and lower surfaces of the fiber web.

[0013] A further improvement to the above scheme is that the main puncture unit is equipped with a laser sensor for puncture depth and a pressure sensor, and the detection data is fed back to the intelligent control center for closed-loop control of puncture force and puncture frequency.

[0014] A further improvement to the above solution is that the composite processing module includes a surface treatment unit, a coating unit, a hot pressing unit, and a laser engraving unit. The surface treatment unit uses atmospheric plasma equipment to treat the upper surface of the sole blank. The coating unit is used to coat the bottom surface of the lower wear-resistant layer with a polyurethane slurry containing nano-alumina. The hot pressing unit has a multi-cavity mold with cooling water channels, which is used to press the upper bonding layer, the sole blank, and the lower wear-resistant layer together under set temperature, pressure, and time. The laser engraving unit is used to engrave anti-slip patterns on the lower surface of the composite sole.

[0015] A method for preparing abrasion-resistant and puncture-resistant shoe soles using a preparation system includes the following steps: Step S1. Raw material preparation and fiber web preparation: Ultra-high molecular weight polyethylene fiber is fed into the raw material processing module and sequentially undergoes wool mixing, cotton blending, opening, pneumatic conveying and carding to form a continuous fiber web with uniform surface density. Step S2. Intelligent needle punching: The fiber web enters the needle punching module and is laid up by the automatic layup unit according to the preset number of layers. It then passes through the pre-needling unit's roller pre-needling and the main needle punching unit's high-speed needle punching to form a dense core protective layer preform. Step S3. Multifunctional composite processing: The core protective layer blank, the prefabricated upper bonding layer and the lower wear-resistant layer are fed into the composite processing module, and the upper surface is subjected to plasma treatment, the lower surface is coated with polyurethane slurry, hot pressing and laser engraving are performed in sequence to form a composite shoe sole; the hot pressing conditions are: temperature controlled at 150~180℃, pressure at 5~15MPa, and holding time at 90~180 seconds. After hot pressing is completed, the mold cooling system is started to make the shoe sole temperature drop below 50℃ before demolding. Step S4. Online quality inspection and sorting: The composite soles enter the quality inspection and sorting module for online inspection of internal defects, thickness, and weight, and are automatically sorted by the robot based on the inspection results.

[0016] A further improvement to the above scheme is that the online quality inspection standards are set by the intelligent control center, including that no unpunctured areas with a diameter greater than 1 mm are allowed in the X-ray image; the thickness tolerance is ±5% of the nominal thickness; the weight tolerance is ±3% of the nominal weight; and shoe soles that exceed the tolerances are sorted to the rework area.

[0017] A further improvement to the above solution is that the specific process of intelligent needle punching includes: Step S2.1. Ply parameter setting: Input the thickness and protection level of the target sole in the human-computer interaction interface of the intelligent control center, and the system will automatically calculate and set the number of ply layers and ply angle; Step S2.2. Pre-punching process: The pressure of the roller pre-punching device is controlled at 0.5~2.0MPa, and the roller speed is synchronized with the layup speed; Step S2.3. Main piercing process: The piercing frequency of the main piercing unit is 800~1500 times / minute, and the piercing depth is dynamically adjusted according to the real-time thickness measurement data, controlled at 60%~80% of the total thickness of the core protective layer, and the piercing action of the upper and lower needle plates is staggered by 180 degrees.

[0018] A further improvement to the above scheme is that all process parameters in steps S1 to S4 are set and monitored by the intelligent control center according to the process formula of the selected shoe sole model, so as to realize fully automated production.

[0019] The beneficial effects of this invention are: Compared to existing shoe sole structures, this invention achieves a synergistic improvement in protective performance, abrasion resistance, wearing comfort, and lightweight by using ultra-high molecular weight polyethylene (UHMWPE) material and a multi-layer integrated structural design. The core advantage of this invention lies in its dense composite structure formed by high-pressure needle punching of UHMWPE fiber mesh as the protective layer. The selected UHMWPE fibers possess extremely high specific strength and excellent cut and puncture resistance. By precisely controlling the fineness, molecular weight, and needle punching density of the monofilaments, the multi-layer fiber mesh forms a three-dimensional interwoven, intertwined, and robust whole under high-pressure needle punching. This unique structure greatly eliminates the risk of interlayer separation inherent in traditional laminated materials, efficiently dispersing puncture impact energy across the entire protective plane. This results in superior puncture protection with a relatively thinner and lighter structure, effectively resisting the penetration threat of sharp objects. The abrasion-resistant layer at the bottom is composed of polyurethane elastomer incorporating nano-alumina particles. The introduction of nano-alumina enhances the hardness, tear resistance, and abrasion resistance of the polyurethane material, enabling it to effectively cope with long-term wear on complex surfaces. The anti-slip pattern on the surface further enhances the sole's grip, ensuring walking safety. Simultaneously, the polyurethane material itself possesses excellent cushioning and shock absorption properties, which, combined with the flexibility of the upper fiber protective layer, provide a comfortable feel. Multi-layer integrated molding technology ensures a strong bond between the functional layers, preventing issues such as glue separation or delamination during use, thus improving the overall integrity and lifespan of the sole. The micro-rough texture of the upper bonding layer greatly enhances the adhesion strength and reliability with the upper. This invention successfully combines superior puncture resistance, excellent wear resistance and durability, reliable anti-slip performance, and lightweight comfort, making it particularly suitable for professional fields with extreme requirements for foot safety, such as military and police operations, fire and disaster relief, and outdoor work. It possesses extremely high practical value and market potential.

[0020] The manufacturing system for producing abrasion-resistant and puncture-resistant shoe soles enhances product performance consistency, production efficiency, and process controllability by constructing a highly integrated, automated, and intelligent production line. Through a modular assembly line design of "raw material processing - needle punching - composite processing," continuous and automated production from fiber raw materials to the final shoe sole is achieved. The intelligent control center collects data from sensors in each module in real time via industrial Ethernet and compares it with preset precise process parameters (such as needle punching density, layer thickness, and composite temperature and pressure). Once a deviation is detected, the system can immediately adjust the equipment's operating status through a local controller, achieving closed-loop precise control of key process parameters. The intelligent feedback and control mechanism effectively eliminates the instability of human operation, ensuring that every product, especially the fiber three-dimensional structure, density, and interlayer bonding strength of the core protective layer, strictly meets design standards, thereby guaranteeing excellent consistency and high reliability in puncture resistance. High automation reduces numerous manual intervention steps, significantly shortening the production cycle of a single product and increasing capacity. Simultaneously, the intelligent control center has pre-set multiple process formulas for shoe soles of different specifications and performance requirements. When switching product types is required, operators only need to call up the corresponding formula through the human-machine interface, and the system can automatically coordinate all modules to adjust to the new parameter settings, achieving rapid production changeover and greatly enhancing the production line's flexible production capacity to handle multi-variety, small-batch customized orders. This invention not only fundamentally guarantees the quality of high-performance shoe soles through intelligent means, but also significantly improves production efficiency and flexibility, reduces reliance on skilled workers and overall production costs, and provides an advanced equipment foundation for the large-scale, high-quality manufacturing of wear-resistant and puncture-resistant shoe soles.

[0021] The method for preparing abrasion-resistant and puncture-resistant shoe soles using a fabrication system integrates intelligent control and multi-step precision processes, achieving improvements in product performance, production efficiency, and production consistency. In the "intelligent needle punching" step S2, a combination of "roller pre-punching" and "high-speed main punching" is employed. First, the loose fiber layers are initially fixed and compressed at a lower needle punching density. Then, high-density needle punching fully entangles the fibers in three dimensions, thus constructing a uniform, dense, and firmly bonded nonwoven fabric structure within the ultra-high molecular weight polyethylene fiber web. More importantly, the process parameters throughout the entire process are precisely controlled by the intelligent control center according to a preset formula, completely eliminating the instability of manual operation and ensuring a high degree of consistency in the protective layer structure for each batch of products, thereby ensuring reliable and stable puncture resistance. Step S3 involves plasma treatment of the upper surface of the core protective layer, increasing its surface energy and achieving a bonding strength with the upper adhesive layer far exceeding conventional levels, effectively preventing delamination. The lower surface is coated with polyurethane slurry and then hot-pressed, allowing the molten polyurethane to fully penetrate the fiber gaps, achieving microscopic mechanical interlocking and chemical bonding, greatly enhancing the adhesion between the wear-resistant layer and the protective layer. Precise control of the hot-pressing temperature, pressure, and time, combined with subsequent mold cooling, ensures that the polyurethane elastomer is fully cross-linked and cured, and internal stress is effectively released. Ultimately, this results in a composite sole that combines excellent cushioning, wear resistance, and overall structural integrity. Continuous production from raw materials to finished products significantly shortens the cycle time and improves efficiency. Online inspection in step S4 can remove defective products in real time, ensuring a zero-defect rate for outgoing products, while robotic sorting further enhances the intelligence and reliability of production. Attached Figure Description

[0022] Figure 1 This is an explosion diagram of the wear-resistant and puncture-resistant shoe sole of the present invention; Figure 2 for Figure 1 An explosion illustration from another perspective of the abrasion-resistant and puncture-resistant sole; Figure 3 for Figure 1 A schematic diagram of the protective layer of a medium-strength, puncture-resistant shoe sole; Figure 4 This is a schematic diagram of the connection of the preparation system of the present invention; Figure 5 for Figure 4 A schematic diagram of the connection of the raw material processing module in the preparation system; Figure 6 for Figure 4 A schematic diagram of the connection of the needle punching module in the preparation system; Figure 7 for Figure 4 A schematic diagram of the connection of the composite processing module in the preparation system; Figure 8This is a schematic flowchart of the method for preparing wear-resistant and puncture-resistant shoe soles according to the present invention.

[0023] Explanation of reference numerals in the attached diagram: 1. Upper bonding layer; 2. Protective layer; 21. Interface area; 3. Lower wear-resistant layer; 4. Edge wrapping structure; Raw material processing module 10, wool blending machine 101, cotton blending bin 102, opening machine 103, air pressure cotton box 104, carding machine 105, online surface density detector 106, needle punching module 20, automatic lay-up unit 201, multi-axis robotic arm 2011, vision positioning system 2012, pre-punching unit 202, roller pre-punching device 2021, main punching unit 203, high-speed needle punching machine 2031, needle punching depth laser sensor 2032, pressure sensor 2033, composite processing module 30, surface treatment unit 301, coating unit 302, hot pressing unit 303, laser engraving unit 304, intelligent control center 40, central processing unit 401, data storage unit 402, human-machine interface 403, communication interface 404. Detailed Implementation

[0024] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-3As shown, in one embodiment of the present invention, a wear-resistant and puncture-resistant shoe sole is provided. The shoe sole is integrally formed from multiple layers of ultra-high molecular weight polyethylene fibers through a needle-punching reinforcement process. The shoe sole includes an upper bonding layer 1, a protective layer 2, and a lower wear-resistant layer 3 arranged sequentially from top to bottom. The upper bonding layer 1 is used to bond with the shoe upper and has a micro-rough texture on its surface to increase the bonding strength. The protective layer 2 is a dense composite structure formed by high-pressure needle punching of multiple layers of ultra-high molecular weight polyethylene fiber mesh. The fibers are arranged in a three-dimensional interlaced manner, and the layers are seamlessly connected by fiber entanglement. The lower wear-resistant layer 3 is composited on the bottom surface of the core protective layer 2 and is composed of a polyurethane elastomer doped with nano-alumina particles. The surface is pressed with an anti-slip pattern. The ultra-high molecular weight polyethylene fibers of the protective layer 2 have a single filament fineness of 1.0~2.5 decibels, a molecular weight ≥1.5 million, a fiber mesh areal density of 100~300 g / m², and a needle punching density of 150~400 needles / cm². This invention achieves a synergistic improvement in protective performance, abrasion resistance, wearing comfort, and lightweight by selecting ultra-high molecular weight polyethylene (UHMWPE) and using a multi-layer integrated structural design. The core advantage of this invention lies in the dense composite structure formed by high-pressure needle punching of the UHMWPE fiber web as the protective layer 2. The selected UHMWPE fibers possess extremely high specific strength and excellent cut and puncture resistance. By precisely controlling the fineness, molecular weight, and needle punching density of the monofilaments, the multi-layer fiber web forms a three-dimensional interwoven, intertwined, and robust whole under high-pressure needle punching. This unique structure greatly eliminates the risk of interlayer separation present in traditional laminated materials, efficiently dispersing the puncture impact energy across the entire protective plane. This results in superior puncture protection with a relatively thinner and lighter structure, effectively resisting the penetration threat of sharp objects. The abrasion-resistant layer at the bottom is composed of polyurethane elastomer doped with nano-alumina particles. The introduction of nano-alumina enhances the hardness, tear resistance, and abrasion resistance of the polyurethane material, enabling it to effectively cope with long-term wear on complex surfaces. The anti-slip pattern on the surface further enhances the grip of the sole, ensuring walking safety. Simultaneously, the polyurethane material itself possesses excellent cushioning and shock absorption properties, which, combined with the flexibility of the upper fiber protective layer 2, provide a comfortable feel. Multi-layer integrated molding technology ensures a strong bond between the functional layers, avoiding problems such as glue separation and delamination during use, thus improving the overall integrity and lifespan of the sole. The micro-rough texture of the upper bonding layer 1 greatly enhances the adhesion strength and reliability with the upper. This invention successfully combines superior puncture resistance, excellent wear resistance and durability, reliable anti-slip performance, and lightweight comfort, making it particularly suitable for professional fields with extreme requirements for foot safety, such as military and police operations, fire and disaster relief, and outdoor work. It has extremely high practical value and market potential.

[0027] The total thickness of protective layer 2 is 2.0~5.0mm, its needle penetration depth is 60%~80% of the layer thickness, the fiber volume fraction is not less than 35%, and it can withstand a static puncture force ≥1000N. In this embodiment, the total thickness of the core protective layer 2 of the wear-resistant and puncture-resistant sole is set to 3.5mm. According to the instructions of the intelligent control center, the needle penetration depth of the main puncture unit is dynamically controlled at 2.5mm (approximately 71% of the layer thickness). The protective layer 2 prepared by this process has a fiber volume fraction of 38% and has successfully passed the static puncture test, with a withstand force of up to 1250N, far exceeding the standard requirement of 1000N. Specifically, by precisely controlling the needle penetration depth within the range of 60%~80% of the layer thickness, it ensures that the ultra-high molecular weight polyethylene fibers are fully entangled in the thickness direction, forming a dense three-dimensional network structure (reflected in the high fiber volume fraction), while avoiding fiber damage caused by excessive puncture. This allows the sole protective layer 2 to achieve exceptionally good puncture resistance while maintaining a moderate thickness and allowing for flexible wear.

[0028] The upper bonding layer 1 is a plasma-treated ultra-high molecular weight polyethylene nonwoven fabric with a surface energy ≥45mN / m and a thickness of 0.3~0.8mm. The lower abrasion-resistant layer 3 has nano-alumina particles with a particle size of 20~80nm, a filling amount of 5%~15%wt, and an abrasion loss of ≤40mg. In this embodiment, the bonding layer uses a 0.5mm thick ultra-high molecular weight polyethylene nonwoven fabric, which is plasma-treated to increase its surface energy to 50mN / m. The lower abrasion-resistant layer 3 uses nano-alumina particles with a particle size of 50nm as a reinforcing filler, with a filling amount of 10%wt, and the tested abrasion loss is only 35mg. The plasma treatment of the upper bonding layer 1 significantly improves its surface energy, greatly increasing its wettability and chemical bonding ability with the shoe upper and midsole material, achieving a strong bonding interface far exceeding physical adsorption, and effectively avoiding delamination and separation problems during use. Secondly, the lower wear-resistant layer 3 introduces nanoscale alumina particles and disperses them in an optimized ratio of 5% to 15%, forming a highly efficient reinforcing network in the polymer matrix. This gives the working surface of the sole that directly contacts the ground excellent wear resistance and extends the product's service life.

[0029] The core protective layer 2 has a gradient needle-punched structure in the interface region 21 near the upper bonding layer 1 and / or the lower abrasion-resistant layer 3. The needle density in the interface region 21 gradually decreases from the inside to the outside, forming a gradual transition zone of hardness. In this embodiment, the core protective layer 2 of the abrasion-resistant and puncture-resistant sole has a gradient needle-punched structure in both interface regions 21 near the upper bonding layer 1 and the lower abrasion-resistant layer 3. Specifically, in an area about 1 mm from the interface, the needle density gradually decreases from 120 needles / cm² inside the core layer to 60 needles / cm² at the interface, forming a gradual transition zone of physical properties. By constructing a gradient structure with decreasing needle density from the inside to the outside, a smooth transition of fiber entanglement density and material hardness is achieved at the microscopic level. This effectively avoids a rigid interface caused by a sudden change in hardness between the hard core protective layer 2 and the relatively soft upper bonding layer 1 and lower abrasion-resistant layer 3. In practical applications, this structure can significantly disperse and absorb the shear stress generated between the layers when the sole is bent or impacted, fundamentally solving the common failure problems of multilayer composite materials such as interface delamination and edge cracking.

[0030] The system also includes an edge-sealing structure 4 disposed at the edge of the protective layer 2. The edge-sealing structure 4 is made of thermoplastic polyurethane through injection molding, which encapsulates the edges of each layer of the sole. In this embodiment, the edge-sealing structure 4 is made of thermoplastic polyurethane and is formed in one step through a high-temperature injection molding process, sealing all exposed edges of the protective layer 2, the upper bonding layer 1, and the lower abrasion-resistant layer 3. The TPU edge-sealing structure 4, through physical wrapping and melt bonding, firmly combines the edges of each layer of the multi-layer composite sole into a whole, effectively preventing delamination and peeling caused by moisture and stains penetrating between layers during use, greatly improving the durability and environmental adaptability of the sole. The overall encapsulation design enhances the structural integrity of the sole edges, enabling it to effectively resist edge cracking and layered peeling when subjected to lateral impact or scratches, thus improving the overall damage resistance of the sole. The injection-molded edging structure 4 has a smooth surface and clear outline, which not only improves the appearance quality of the product, but also avoids potential injury to users from sharp edges. At the same time, it ensures the flatness of the area where the sole and upper are sewn or glued, and optimizes the shoe manufacturing process.

[0031] See Figures 1-7As shown, a manufacturing system for preparing abrasion-resistant and puncture-resistant shoe soles includes a raw material processing module 10, a needle-punching module 20, a composite processing module 30, and an intelligent control center 40 connected in sequence. The raw material processing module 10 is used to open, mix, and comb ultra-high molecular weight polyethylene fibers to form a uniform fiber web. The needle-punching module 20 is used to receive the fiber web and perform multi-layer stacking and needle-punching reinforcement to form a shoe sole preform. The composite processing module 30 is used to laminate an upper bonding layer 1 and a lower abrasion-resistant layer 3 onto the upper and lower surfaces of the shoe sole preform. The intelligent control center 40 is equipped with a central processing unit 401, a data storage unit 402, a human-machine interface 403, and a communication interface 404. The intelligent control center 40 is connected to the local controllers of the raw material processing module 10, the needle-punching module 20, and the composite processing module 30 via an industrial Ethernet, receives sensor data from each module, and sends control commands to each module based on a preset process formula and real-time quality feedback to coordinate the entire manufacturing process. This embodiment improves product performance consistency, production efficiency, and process controllability by constructing a highly integrated, automated, and intelligent production line. Through a modular assembly line design of "raw material processing - needle punching - composite processing," continuous and automated production from fiber raw materials to the final shoe sole is achieved. The intelligent control center 40 collects data from sensors in each module in real time via industrial Ethernet and compares it with preset precise process parameters (such as needle punching density, layer thickness, composite temperature, and pressure). Once a deviation is detected, the system can immediately adjust the equipment operating status through the local controller, achieving closed-loop precise control of key process parameters. The intelligent feedback and control mechanism effectively eliminates the instability of human operation, ensuring that every product, especially the three-dimensional fiber structure, density, and interlayer bonding strength of the core protective layer 2, strictly meets design standards, thereby guaranteeing excellent consistency and high reliability in puncture resistance. High automation reduces a large number of manual intervention steps, significantly shortening the production cycle of a single product and increasing capacity. Simultaneously, the intelligent control center 40 has multiple pre-set process formulas for shoe soles of different specifications and performance requirements. When switching product types is required, operators only need to call up the corresponding formula through the human-machine interface 403, and the system can automatically coordinate all modules to adjust to the new parameter settings, achieving rapid production changeover and greatly enhancing the production line's flexible production capacity to handle multi-variety, small-batch customized orders. This embodiment not only fundamentally guarantees the quality of high-performance shoe soles through intelligent means, but also significantly improves production efficiency and flexibility, reduces reliance on skilled workers and overall production costs, and provides an advanced equipment foundation for the large-scale, high-quality manufacturing of wear-resistant and puncture-resistant shoe soles.

[0032] The raw material processing module 10 includes a blending machine 101, a blending bin 102, an opening machine 103, a pneumatic cotton box 104, and a carding machine 105 arranged sequentially. The carding machine 105 is equipped with an online surface density detector 106 at its outlet. This online surface density detector 106 is communicatively connected to the intelligent control center 40, providing real-time feedback of fiber web surface density data. Based on this data, the intelligent control center 40 dynamically adjusts the output air pressure of the pneumatic cotton box 104 and the operating parameters of the carding machine 105. In this embodiment, the fiber raw material undergoes preliminary opening and mixing through the blending machine 101, then enters the blending bin 102 for homogenization and storage. After being fully fluffed by the main opening machine 103, it is quantitatively and stably fed into the carding machine 105 by the pneumatic cotton box 104. The carding machine 105 outlet integrates a non-contact online surface density detector 106, which establishes real-time data communication with the system's intelligent control center 40. By constructing a closed-loop control system of "detection-feedback-adjustment", precise online monitoring and dynamic optimization of fiber web density are achieved. When the online surface density detector 106 detects a deviation in fiber web density, the intelligent control center 40 can respond immediately, precisely controlling the cotton feeding amount by finely adjusting the output air pressure of the air pressure cotton box 104, and simultaneously finely adjusting the operating parameters such as the speed and rotation speed of the carding machine 105.

[0033] The needle punching module 20 includes an automatic layup unit 201, a pre-needling unit 202, and a main needle punching unit 203. The automatic layup unit 201 has a multi-axis robotic arm 2011 and a vision positioning system 2012 for precisely stacking multiple layers of fiber web. The pre-needling unit 202 includes a pair of opposing roller pre-needling devices 2021 for pre-compacting the stacked fiber web. The main needle punching unit 203 includes at least two sets of high-speed needle punching machines 2031, with needles on the needle plate arranged in a diamond pattern to alternately needle the upper and lower surfaces of the fiber web. In this embodiment, the automatic layup unit... The Yuan 201 module employs a six-axis industrial robotic arm and is equipped with a high-resolution vision positioning system 2012, enabling automated stacking of multi-layer fiber webs with precise alignment according to a preset program. Subsequently, the pre-needling unit 202 includes a pair of opposing roller pre-needling devices 2021 with arrayed protrusions on their surfaces, performing preliminary, pressure-controlled pre-compaction on the stacked fiber web. Finally, the main needle-needling unit 203 is equipped with two sets of high-speed needle-needling machines 2031, whose needles are arranged in an optimized diamond pattern, allowing for high-frequency, deep, alternating needle-needling of the upper and lower surfaces of the fiber web. Specifically, the visual positioning of the automatic layup unit 201, working in conjunction with the robotic arm, achieves precise alignment between layers, effectively avoiding misalignment and wrinkles that are prone to occur with manual layup, laying the foundation for a uniformly structured preform. The roller pre-needling devices 2021, through gentle pre-compaction, eliminate a large amount of air between layers, initially establishing connections between fibers, preventing fiber damage or penetration due to loose structure during subsequent main needle-needling, and improving the integrity of the preform. The main piercing unit 203 uses diamond-shaped piercing needles for double-sided alternating piercing, which can achieve full entanglement and interlocking of fibers in three-dimensional space, greatly improving the interlayer bonding strength and overall density of the fiber web, thereby ensuring that the final core protective layer 2 has excellent puncture resistance and structural stability.

[0034] The main piercing unit 203 is equipped with a laser sensor 2032 for piercing depth and a pressure sensor 2033. The detection data is fed back to the intelligent control center 40 for closed-loop control of the piercing force and frequency. In this embodiment, a laser displacement sensor installed near the piercing area is used to monitor the piercing depth of the needle in real time, and a dynamic pressure sensor 2033 embedded in the needle plate support structure is used to synchronously detect the real-time force exerted during piercing. The depth and pressure data collected by the above sensors are transmitted to the intelligent control center 40 of the system in real time via a high-speed data bus. By introducing real-time monitoring and closed-loop feedback control of both piercing depth and piercing force, a fundamental shift in the piercing process from experience-based and qualitative to data-driven and precise is achieved. The intelligent control center 40 compares and analyzes the received real-time detection data with preset process parameter standard ranges. When the piercing depth deviates from the target value or the piercing force fluctuates abnormally, the control center can immediately and dynamically adjust the output torque (to adjust the piercing force) and drive frequency (to adjust the piercing frequency) of the servo motor of the main piercing unit 203. This ensures that the depth and force of each needle-punching action are highly consistent and within the optimal process window. It avoids insufficient interlayer bonding caused by needle-punching that is too shallow, or fiber damage or even breakage caused by needle-punching that is too deep or with too much force, thereby maximizing the optimization of the three-dimensional entanglement effect of the fibers at the microscopic level.

[0035] The composite processing module 30 includes a surface treatment unit 301, a coating unit 302, a hot pressing unit 303, and a laser engraving unit 304. The surface treatment unit 301 uses atmospheric plasma equipment to treat the upper surface of the sole blank. The coating unit 302 is used to coat the bottom surface of the lower wear-resistant layer 3 with a polyurethane slurry containing nano-alumina. The hot pressing unit 303 has a multi-cavity mold with cooling water channels, which is used to press the upper bonding layer 1, the sole blank, and the lower wear-resistant layer 3 together under set temperature, pressure, and time. The laser engraving unit 304 is used to engrave anti-slip patterns on the lower surface of the composite sole. In this embodiment, the surface treatment unit 301 uses atmospheric plasma equipment to activate the upper surface of the needle-punched shoe sole blank; the coating unit 302 uses a precision scraper to uniformly coat the bottom surface of the lower wear-resistant layer 3 with a polyurethane slurry mixed with nano-alumina particles; the hot pressing unit 303 is equipped with a multi-cavity mold with an internal integrated cooling water channel, used to press and cure the upper bonding layer 1, the treated shoe sole blank, and the coated lower wear-resistant layer 3 under set temperature, pressure, and time parameters; finally, the laser engraving unit 304 uses a high-power laser to engrave a preset three-dimensional anti-slip pattern on the bottom surface of the composite shoe sole. Atmospheric plasma treatment effectively cleans and activates the surface of the shoe sole blank, significantly improving the interfacial bonding strength between it and the upper bonding layer 1, and avoiding interlayer delamination. Secondly, the lower wear-resistant layer 3, coated with nano-alumina-reinforced polyurethane slurry, is firmly bonded to the blank during the hot pressing process, giving the bottom surface of the shoe sole excellent wear resistance and impact resistance. The hot-press molding unit 303, through a multi-cavity mold and a precise temperature, pressure, and cooling system, ensures that multi-layer materials achieve uniform, dense, and bubble-free strong composite bonding under a high-efficiency production rhythm, resulting in excellent overall product structure. Finally, laser engraving technology can precisely and efficiently process complex anti-slip patterns with controllable depth and clear edges, which not only improves the grip of the sole but also makes the pattern durability far superior to traditional mold embossing.

[0036] See Figure 8 As shown, a method for preparing abrasion-resistant and puncture-resistant shoe soles using a preparation system includes the following steps: Step S1. Raw material preparation and fiber web preparation: Ultra-high molecular weight polyethylene fibers are fed into the raw material processing module 10 and sequentially undergo wool mixing, cotton blending, opening, pneumatic conveying, and carding to form a continuous fiber web with uniform areal density; Step S2. Intelligent needle punching: The fiber web enters the needle punching module 20, where it is laid up by the automatic layup unit 201 according to the preset number of layers, and sequentially undergoes roller pre-punching by the pre-punching unit 202 and high-speed needle punching by the main punching unit 203 to form a dense core protective layer 2 preform; Step S3. Multifunctional composite processing: The core protective layer 2 preform, the pre-made upper bonding layer 1, and the lower wear-resistant layer are combined... Layer 3 is fed into the composite processing module 30, where it undergoes plasma treatment on the upper surface, polyurethane slurry coating on the lower surface, hot pressing, and laser engraving to form a composite sole. The hot pressing conditions are: temperature controlled at 150~180℃, pressure at 5~15MPa, and holding time at 90~180 seconds. After hot pressing, the mold cooling system is activated to allow the sole temperature to drop below 50℃ before demolding. Step S4. Online quality inspection and sorting: The composite sole enters the quality inspection and sorting module for online inspection of internal defects, thickness, and weight, and is automatically sorted by a robot based on the inspection results.

[0037] In this process, all process parameters in steps S1 to S4 are set and monitored by the intelligent control center 40 according to the process formula of the selected shoe sole model, so as to realize fully automated production.

[0038] This embodiment achieves improvements in product performance, production efficiency, and production consistency by integrating intelligent control and multi-step precision processes. In the "intelligent needle punching" step S2, a process combining "roller pre-punching" and "high-speed main punching" is employed. First, the loose fiber layers are initially fixed and compressed at a lower needle punching density. Then, high-density needle punching fully entangles the fibers in three dimensions, thereby constructing a uniform, dense, and firmly bonded nonwoven fabric structure within the ultra-high molecular weight polyethylene fiber web. More importantly, the process parameters throughout the entire process are precisely controlled by the intelligent control center 40 according to a preset formula, completely eliminating the instability of manual operation and ensuring a high degree of consistency in the protective layer 2 structure for each batch of products, thus ensuring reliable and stable puncture resistance. Step S3 involves plasma treatment of the upper surface of the core protective layer 2, increasing its surface energy and achieving a bonding strength with the upper bonding layer 1 that far exceeds conventional levels, effectively preventing delamination. The lower surface is coated with polyurethane slurry and then hot-pressed, allowing the molten polyurethane to fully penetrate the fiber gaps, achieving microscopic mechanical interlocking and chemical bonding, greatly enhancing the adhesion between the wear-resistant layer and the protective layer 2. Precise control of the hot-pressing temperature, pressure, and time, combined with subsequent mold cooling, ensures that the polyurethane elastomer is fully cross-linked and cured, and internal stress is effectively released, ultimately giving the composite sole excellent cushioning, wear resistance, and overall structural integrity. Continuous production from raw materials to finished products significantly shortens the cycle time and improves efficiency. Online inspection in step S4 can remove defective products in real time, ensuring a zero-defect rate for outgoing products, while robotic sorting further enhances the intelligence and reliability of production.

[0039] The specific process of intelligent needle punching includes: Step S2.1. Layup parameter setting: Input the thickness and protection level of the target sole into the human-machine interface 403 of the intelligent control center 40. The system automatically calculates and sets the number of layup layers and the layup angle. Step S2.2. Pre-punching process: The pressure of the roller pre-punching device 2021 is controlled at 0.5~2.0MPa, and the roller speed is synchronized with the layup speed. Step S2.3. Main punching process: The punching frequency of the main punching unit 203 is 800~1500 times / minute. The punching depth is dynamically adjusted according to the real-time thickness measurement data and controlled at 60%~80% of the total thickness of the core protective layer 2. The punching actions of the upper and lower needle plates are staggered by 180 degrees.

[0040] In this embodiment, step S2.1 involves inputting macroscopic performance targets (such as thickness and protection level) into the human-machine interface 403. Based on the built-in process knowledge base and algorithm model, the optimal number of layup layers and layup angle required to achieve the target can be automatically calculated. Intelligent parameter mapping directly transforms user requirements into executable process instructions, reducing reliance on operators' professional experience and ensuring that different batches and specifications of products achieve a three-dimensional fiber skeleton structure highly consistent with design expectations. This provides a precise, controllable, stable, and reliable foundation for puncture-resistant protection performance of the sole. In the pre-punching process, the roller pressure is precisely controlled at 0.5-2.0 MPa and synchronized with the layup speed. This allows for gentle and uniform initial compression and fixation of the loose fiber layers, effectively preventing accidental displacement or damage to the fiber web and creating a flat and stable initial condition for subsequent main punching. The main punching process achieves full entanglement of deep fibers through high-frequency needle punching combined with dynamic adjustment of the needle punching depth. In particular, by controlling the needle penetration depth to 60%~80% of the total thickness based on real-time thickness measurement data, the needle penetration effectively penetrates multiple layers of fibers, forming a strong bond in the longitudinal direction, while avoiding the risk of damage to the underlying fibers or needle breakage caused by excessively deep punctures. The 180-degree phase-staggered setting of the upper and lower needle plates makes the needle penetration force more balanced in the thickness direction, significantly reducing preform deformation and internal stress, thereby obtaining a high-density protective layer 2 preform with a more uniform structure and more stable dimensions. Through the coordinated control of the above parameters, the entire needle punching process, from macroscopic parameter input to microscopic fiber movement, is made intelligent and precise.

[0041] The online quality inspection standards are set by the intelligent control center 40, including that no unpunctured areas larger than 1 mm in diameter are allowed in X-ray images; the thickness tolerance is ±5% of the nominal thickness; the weight tolerance is ±3% of the nominal weight; soles exceeding the tolerances are sorted to the rework area. In this embodiment, X-ray imaging technology is used to detect and specify that "no unpunctured areas larger than 1 mm in diameter are allowed." This stringent standard can effectively identify internal defects that are not visible to the naked eye, such as insufficient local fiber entanglement or holes caused by fluctuations in the needle-punching process (e.g., broken needles, fiber clumps). These defects are weak points in protective performance and reduce the puncture resistance of the sole. By using automated online X-ray inspection as a veto item, products with structural safety hazards can be 100% intercepted.

[0042] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A puncture and abrasion resistant shoe sole, characterized by: The shoe sole is integrally formed by a plurality of layers of ultra-high molecular weight polyethylene fibers through a needle punching reinforcement process, and comprises, from top to bottom, an upper adhering layer, a protective layer and a lower wear-resistant layer, the upper adhering layer is used for bonding with the upper, and the surface has a micro-rough texture for increasing the bonding strength; The protective layer is a dense composite structure formed by a plurality of layers of ultra-high molecular weight polyethylene fiber webs through high-pressure needle punching, the fibers are arranged in three dimensions, and the layers are seamlessly connected through fiber entanglement; the lower wear-resistant layer is composed of polyurethane elastomer mixed with nano-aluminum oxide particles by being compounded on the bottom surface of the core protective layer, and the surface is pressed with anti-skid patterns; wherein the single-fiber fineness of the ultra-high molecular weight polyethylene fiber of the protective layer is 1.0-2.5 dtex, the molecular weight is ≥1.5 million, the areal density of the fiber web is 100-300 g / m², and the needle punching density is 150-400 needles / cm².

2. The abrasion-resistant, puncture-resistant shoe sole of claim 1, wherein: The total thickness of the protective layer is 2.0-5.0 mm, the needle punching depth is 60%-80% of the layer thickness, the fiber volume fraction is not less than 35%, and the static puncture force is ≥1000 N.

3. The puncture and abrasion resistant shoe sole according to claim 1, wherein: The upper adhering layer is an ultra-high molecular weight polyethylene non-woven fabric treated by plasma, the surface energy is ≥45 mN / m, and the thickness is 0.3-0.8 mm; the particle size of the nano-aluminum oxide particles of the lower wear-resistant layer is 20-80 nm, the filling amount is 5%-15% wt, and the abrasion amount is ≤40 mg.

4. The puncture and abrasion resistant shoe sole according to claim 1, wherein: The core protective layer is provided with a gradient needle punching structure in the interface area close to the upper adhering layer and / or the lower wear-resistant layer, the needle punching density of the interface area gradually decreases from inside to outside, forming a hardness gradient transition area.

5. The puncture and abrasion resistant shoe sole according to claim 1, wherein: It also includes a hemming structure arranged at the edge of the protective layer, the hemming structure is integrally encapsulated by injection molding of thermoplastic polyurethane, and the edges of the layers of the shoe sole are integrally encapsulated.

6. A manufacturing system for manufacturing the puncture and abrasion resistant shoe sole according to any one of claims 1 to 5, characterized by: It comprises a raw material processing module, a needle punching forming module, a composite processing module and an intelligent control center connected in sequence, the raw material processing module is used for opening, mixing and carding the ultra-high molecular weight polyethylene fibers to form a uniform fiber web; the needle punching forming module is used for receiving the fiber web and performing multi-layer lamination and needle punching reinforcement to form a shoe sole blank; the composite processing module is used for compounding the upper adhering layer and the lower wear-resistant layer on the upper and lower surfaces of the shoe sole blank; the intelligent control center is provided with a central processing unit, a data storage unit, a man-machine interface and a communication interface; wherein the intelligent control center is connected with the local controllers of the raw material processing module, the needle punching forming module and the composite processing module through industrial Ethernet, receives sensor data from each module, sends control instructions to each module based on the preset process formula and real-time quality feedback, and coordinates the whole preparation process.

7. The preparation system according to claim 6, characterized in that: The raw material processing module comprises a gilling machine, a cotton mixing bin, an opener, an air pressure cotton box and a carding machine arranged in sequence; the outlet of the carding machine is provided with an online areal density detector, the online areal density detector is in communication connection with the intelligent control center, and the fiber web areal density data is fed back in real time, and the intelligent control center adjusts the output air pressure of the air pressure cotton box and the working parameters of the carding machine dynamically.

8. The preparation system of claim 6, wherein: The needle punching forming module comprises an automatic layering unit, a pre-punching unit and a main punching unit, the automatic layering unit is provided with a multi-axis mechanical arm and a visual positioning system for accurately stacking multiple layers of fiber web; the pre-punching unit comprises a pair of opposite roller pre-punching devices for pre-compacting the stacked fiber web; the main punching unit comprises at least two groups of high-speed needle punching machines, and the needles on the needle plate are distributed in a diamond shape to alternately punch the upper and lower surfaces of the fiber web; The main punching unit is equipped with a needle punching depth laser sensor and a pressure sensor, and the detection data is fed back to the intelligent control center for closed-loop control of the needle punching force and the needle punching frequency.

9. The system for producing according to claim 6, characterized in that: The composite processing module comprises a surface treatment unit, a coating unit, a hot pressing forming unit and a laser engraving unit, the surface treatment unit uses an atmospheric plasma device to treat the upper surface of the shoe sole blank; the coating unit is used for coating polyurethane slurry mixed with nano aluminum oxide on the bottom surface of the lower wear-resistant layer; the hot pressing forming unit has a multi-cavity mold with a cooling water channel for pressing the upper laminated layer, the shoe sole blank and the lower wear-resistant layer into one body under the conditions of set temperature, pressure and time; the laser engraving unit is used for engraving anti-slip patterns on the lower surface of the composite shoe sole.

10. A method for preparing a wear-resistant and puncture-resistant shoe sole using the preparation system of any one of claims 6-9, comprising the following steps: Step S1. Raw material preparation and fiber web preparation: the ultra-high molecular weight polyethylene fiber is put into the raw material processing module and sequentially subjected to carding, blending, opening, air pressure conveying and carding to form a continuous fiber web with uniform surface density; Step S2. Intelligent needle punching forming: the fiber web enters the needle punching forming module, is stacked by the automatic layering unit according to the preset number of layers, is pre-pressed and pre-punched by the roller of the pre-punching unit, and is high-speed punched by the main punching unit to form a dense core protection layer blank; Step S3. Multifunctional composite processing: the core protection layer blank, the pre-prepared upper laminated layer and the lower wear-resistant layer are sent into the composite processing module, and the upper surface is subjected to plasma treatment, the lower surface is coated with polyurethane slurry, hot pressing and laser engraving to form a composite shoe sole; the hot pressing is carried out under the conditions of temperature control at 150-180℃, pressure of 5-15MPa and pressure holding time of 90-180 seconds, and after the hot pressing is completed, the mold cooling system is started to reduce the temperature of the shoe sole to below 50℃ and then the mold is opened; Step S4. Online quality detection and sorting: the composite shoe sole enters the quality detection and sorting module, and is subjected to online detection of internal defects, thickness and weight, and is automatically sorted by the robot according to the detection results; The online quality detection standard is set by the intelligent control center, including that no un-punched area with a diameter greater than 1mm is allowed to appear in the X-ray image; The thickness tolerance is ±5% of the nominal thickness, and the weight tolerance is ±3% of the nominal weight; the shoe soles exceeding the tolerance are sorted into the repair area; The specific process of the intelligent needle punching forming comprises: Step S2.

1. Layering parameter setting: the thickness and protection level of the target shoe sole are input on the human-machine interaction interface of the intelligent control center, and the system automatically calculates and sets the layering number and layering angle; ​ Step S2.

2. Pre-punching process: the pressure of the roller pre-punching device is controlled at 0.5-2.0 MPa, and the roller speed is synchronized with the laying speed; Step S2.

3. Main punching process: the needle punching frequency of the main punching unit is 800-1500 times per minute, the needle punching depth is dynamically adjusted according to the real-time thickness data, and is controlled at 60%-80% of the total thickness of the core protection layer, and the needle punching actions of the upper and lower needle plates are phase-shifted by 180 degrees; Wherein, all the process parameters of steps S1-S4 are set and monitored by the intelligent control center according to the process formula of the selected sole model, realizing full-process automatic production.

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