Sneaker vamp material, preparation method thereof and process for applying sneaker vamp material to forming sneakers

Abstract

The invention relates to a sneaker vamp material, a preparation method thereof and a process for applying the sneaker vamp material to forming sneakers, PA, TPU, POE and a compatilizer are weighed according to the formula and put into a mixing machine to be mixed, then a dispersing agent, a lubricating agent, an antistatic agent, a heat stabilizer and an antibacterial agent are added, the materials are continuously mixed, and the materials are put into a feeding machine after being evenly mixed; and feeding the mixed material into a feeding machine through a loading machine, and carrying out melting, shearing and plasticizing extrusion granulation through a co-rotating parallel twin-screw extruder to obtain the novel vamp material. A high-strength elastic vamp material is subjected to a glue-free hot melting and shoe sole bonding technology, an extrusion spinning process, linkage of a robot with a shoe tree provided with a shoe sole and shoe tree 3D model input, the robot moves around a track to uniformly spray a vamp hot melting atomized filamentous material on the shoe tree provided with the shoe sole, and adhesion is carried out in a hot melting mode. And the integrated sneakers are formed by atomization opposite-point jet weaving. The high-strength and high-toughness vamp is light in weight, good in rebound resilience, excellent in air permeability and more comfortable to wear.

Description

Technical Field

[0001] The invention relates to a sports shoe upper material and a preparation method thereof and a process for applying the material to form sports shoes, belonging to the technical field of sports shoe production. Background Art

[0002] At present, there are many production processes for sports shoes, and most of them are completed manually, which is a highly labor-intensive production type. With the development of society, labor costs continue to rise, and relying on manual shoemaking does not meet the expected economic benefits. At the same time, it is difficult to avoid manual errors in the manual production process, and it is difficult to control product quality, and there will be a lot of rework. With the continuous development of mechanical process technology, most shoemaking processes can be completed by different machines and equipment, but manual handling of semi-finished shoes is still required, especially the upper process involving sports shoes, which will produce dust and harmful substances such as gas or glue in the surrounding environment, which will cause harm to human health in the long run.

[0003] Therefore, in view of the shortcomings of traditional shoemaking production technology and the complexity of upper material production, it is necessary to develop automated production processes for sports shoes and break through new upper material technologies to achieve glue-free bonding, achieve environmental protection and safety goals, avoid manual operation errors, improve production efficiency, reduce production costs, and improve product quality. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a sports shoe upper material and a preparation method thereof and a process for applying the material to forming sports shoes.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] The sports shoe upper material is characterized in that its components have the following weight proportions: TPU: 10-60 parts, PA: 5-30 parts, POE: 5-40 parts, compatibilizer: 1-5 parts, dispersant: 0.1-2 parts, lubricant: 0.1-3 parts, heat stabilizer: 1-5 parts, antistatic agent: 1-5 parts, antibacterial agent: 0.1-2 parts.

[0007] Furthermore, the above-mentioned sports shoe upper material further comprises the following components in parts by weight: PE: 5 to 30 parts.

[0008] Furthermore, the above-mentioned sports shoe upper material further comprises the following components in parts by weight: EVA: 5 to 40 parts, PE: 5 to 20 parts.

[0009] The method for preparing the sports shoe upper material of the present invention comprises the following steps:

[0010] 1) According to the weight of the formula, weigh PA, TPU, POE and compatibilizer and put them into the mixer and mix for 3 to 8 minutes. Then add dispersant, lubricant, antistatic agent, heat stabilizer and antibacterial agent, continue mixing for 15 to 25 minutes, stir evenly and put them into the feeder;

[0011] 2) The mixed materials are fed into a feeder through a feeder, and are melted, sheared, plasticized, extruded and granulated by a co-rotating parallel twin-screw extruder to obtain a new upper material.

[0012] Furthermore, in the above method for preparing the sports shoe upper material, PE and EVA are also weighed according to the weight proportions of the formula.

[0013] Furthermore, in the above-mentioned method for preparing the sports shoe upper material, the process conditions of the twin-screw extruder are: front section temperature 130-170°C, middle section temperature 170-210°C, rear section temperature 180-200°C, head temperature 180-200°C; screw speed 200-360r / min.

[0014] The process of forming sports shoes using upper materials of the present invention comprises the following steps:

[0015] 1) Convey the prepared upper material to the material bin of the screw main machine;

[0016] 2) Adjust the temperature of the screw main engine to: feeding section: 100-135°C, plasticizing section: 140-185°C, discharging section: 190-240°C;

[0017] 3) Assemble the spinneret module on the extruder outlet and preheat it to 175-200°C;

[0018] 4) Install the shoe last fixture on the robot's manipulator and input the motion trajectory for trial operation;

[0019] 5) The gas is passed into the pressure-stabilizing tank, the air heating device is turned on, and the gas temperature is set to 40-80°C;

[0020] 6) Introduce a small amount of hot air into the spinneret module, adjust the speed of the screw main engine to 5-25u / min, discharge the material from the spinneret module, adjust the air output, and spray out the atomized filaments. The robot locks the shoe last with the sole into the spraying upper area and operates according to the movement trajectory of the shoe last. The robot moves around the trajectory to evenly spray the hot-melt atomized filamentary material of the upper on the shoe last with the sole, connect the upper and the sole, and spray the upper. After hot-melt bonding and integrated molding, an integrated sports shoe is obtained.

[0021] Furthermore, in the above-mentioned process for forming sports shoes, the spinneret module is a 0.3mm atomizing porous nozzle, a 0.5mm filamentary porous nozzle or a 1mm coarse filament braiding nozzle.

[0022] Furthermore, in the above-mentioned process of forming sports shoes, the movement trajectory of the robot is obtained by mapping the size, model and style of the sole and the shoe last through 3D mapping, and the fixed injection point is aligned.

[0023] Furthermore, in the above-mentioned process for forming sports shoes, the temperature of the hot air source is controlled and the air pressure is adjusted so that the wires output from the nozzle are uniform and straight, and at the same time reach a hot-melt state with the sole.

[0024] Compared with the prior art, the present invention has significant advantages and beneficial effects, which are specifically embodied in the following aspects:

[0025] ① The present invention provides a high-strength elastic upper material and a preparation method thereof, and then uses the upper material to perform glue-free bonding to form sports shoes automatically. The high-strength elastic upper material is prepared, and the glue-free hot-melt bonding sole technology is used. The integrated sports shoes are formed by atomizing and point-to-point spraying through a fully automatic robot motion trajectory program;

[0026] ② Through the extrusion spinning process, the robot drives the shoe last equipped with the sole. When the 3D model of the shoe last is input, the robot moves in a circular trajectory to evenly spray the hot-melt atomized silk material of the upper on the shoe last with the sole, and the sports shoes are made in one go without glue bonding; through the drawing of the 3D shoe last, the sizes, models and styles of different shoe lasts are mapped through 3D mapping to form an automated motion trajectory, and the robot linkage program is introduced to improve the automated linkage trajectory. After the automated robot is programmed, a new process for fully automated production of sports shoes without glue bonding is realized, avoiding manual operation errors and cumbersome shoemaking processes and consuming a lot of human resources, improving production efficiency, reducing production costs, and improving product quality;

[0027] ③ The upper material has high strength and toughness, light weight, good resilience and wear resistance and antibacterial properties. The composite material has good compatibility. The melt-spraying filamentary process is used to achieve atomized, interwoven and spiral melt-spraying effects. According to the design of the spinneret aperture, it is linear in the melt-spraying process, with precise point-to-point contact, more skin-friendly and excellent breathability, and more comfortable to wear;

[0028] ④ The continuous production line process technology route of the present invention is from spraying the upper material to the shoe last equipped with the sole, and then integrated into one by hot-melt bonding; it solves some cumbersome processes such as weaving, compounding, punching, sewing, etc. brought about by traditional composite uppers, and avoids the bonding process of brushing glue between the upper material and the sole material.

[0029] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the specific embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 : A schematic structural diagram of the process device of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, directional terms and order terms are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] The present invention first prepares a high-strength elastic upper material, and then uses a glue-free hot-melt bonding sole technology, an extrusion spinning process, and a robot linkage with a shoe last equipped with a sole. When the 3D model of the shoe last is input, the robot performs a circular trajectory movement to evenly spray the upper hot-melt atomized filamentary material on the shoe last with the sole, and then adheres it by hot-melt. The fully automatic robot motion trajectory program performs atomization point spraying to form an integrated sports shoe. The upper material produced has high strength and high toughness, is light in weight and has good resilience, and has wear-resistant and antibacterial properties. The melt-sprayed filamentary design has a more skin-friendly feel and excellent air permeability, and is more comfortable to wear.

[0035] The upper material of sports shoes has the following weight proportions of components: TPU: 10-60 parts, PA: 5-30 parts, POE: 5-40 parts, compatibilizer: 1-5 parts, dispersant: 0.1-2 parts, lubricant: 0.1-3 parts, thermal stabilizer: 1-5 parts, antistatic agent: 1-5 parts, antibacterial agent: 0.1-2 parts. Preferably, it also contains PE: 5-30 parts; or, EVA: 5-40 parts, PE: 5-20 parts. PE material is used as a compatible intermediate layer to achieve compatibility between crystalline materials and non-crystalline materials, and between polar materials and non-polar materials. EVA reduces viscosity and is conducive to the processing system, thereby producing a thermoplastic melt-blown material with low viscosity, good fluidity and high strength.

[0036] The preparation process steps of sports shoe upper materials are as follows:

[0037] 1) According to the weight of the formula, weigh PA, TPU, POE, and compatibilizer, put them into the mixer and mix for 3 to 8 minutes, then add dispersant, lubricant, antistatic agent, heat stabilizer, and antibacterial agent, continue mixing for 15 to 25 minutes, stir evenly, and put them into the feeder; ideally, also weigh PE and EVA;

[0038] 2) The mixed material is fed into a feeder through a feeder, and then extruded through a co-rotating parallel twin-screw extruder. The process conditions of the twin-screw extruder are: the front section temperature is 130-170°C, the middle section temperature is 170-210°C, the rear section temperature is 180-200°C, the head temperature is 180-200°C, and the screw speed is 200-360r / min. The material is melted, sheared, plasticized, extruded and granulated to obtain a new upper material. The process steps of the present invention for forming sports shoes using the upper material are as follows:

[0039] 1) Convey the prepared upper material to the material bin of the screw main machine;

[0040] 2) Adjust the temperature of the screw main engine to: feeding section: 100-135°C, plasticizing section: 140-185°C, discharging section: 190-240°C;

[0041] 3) Assemble the spinneret module 103 on the discharge port of the extruder. The spinneret module is a 0.3 mm atomizing porous nozzle, a 0.5 mm filamentary porous nozzle or a 1 mm thick filament braided nozzle, and preheat it to 175-200° C.;

[0042] 4) Install the shoe last fixture 102 on the robot's manipulator 101, and input the motion trajectory for trial operation; according to the size, model and style of the sole and shoe last, the motion trajectory of the manipulator is obtained by mapping the 3D map and aligning the fixed injection point;

[0043] 5) The gas is passed into the pressure-stabilizing tank, the air heating device is turned on, and the gas temperature is set to 40-80°C;

[0044] 6) Introduce a small amount of hot air into the spinneret module, adjust the speed of the screw main engine to 5-25u / min, discharge the material from the spinneret module, adjust the air output, spray out the atomized filaments, control the temperature of the hot air source, and adjust the air pressure to make the filaments discharged from the nozzle uniform and straight, and at the same time reach the hot-melt state with the sole. The robot locks the shoe last with the sole into the spraying upper area, and operates according to the movement trajectory of the shoe last. The robot moves around the trajectory to evenly spray the hot-melt atomized filamentary material of the upper on the shoe last with the sole, connect the upper and the sole, and spray the upper, and integrate them into one by hot-melt bonding to obtain an integrated sports shoe.

[0045] Embodiment 1:

[0046] The upper material components are as follows: TPU: 55 parts, PA: 15 parts, POE: 25 parts, compatibilizer: 2 parts, dispersant: 0.2 parts, lubricant: 0.1 parts, heat stabilizer: 1 part, antistatic agent: 1 part, antibacterial agent: 0.7 parts;

[0047] Upper material preparation process:

[0048] 1) Weigh PA, TPU, POE and compatibilizer according to the weight required by the formula and put them into the mixer and mix for 6 to 8 minutes. Then add dispersant, lubricant and other additives and continue mixing for 15 to 25 minutes. After stirring evenly, put them into the feeder;

[0049] 2) The mixed materials enter the feeder on the main machine through the feeder, and are melted, sheared, plasticized, extruded and granulated through the co-rotating parallel twin-screw extruder to obtain a new high-strength elastic upper material; the process conditions of the twin-screw extruder are: the front section temperature is 130-170°C, the middle section temperature is 170-210°C, the rear section temperature is 180-200°C, and the head temperature is 180-200°C; the screw speed is 200-360r / min.

[0050] The physical properties of the obtained upper material are as follows:

[0051] Warp tension>60kg / 2.54c Weft tension>30kg / 2.54c

[0052] Warp elongation>50% Weft elongation>30%

[0053] Warp tearing>5kg Weft tearing>5kg

[0054] Burst strength>18kg / cm2 Low temperature bending>40,000 times

[0055] Normal temperature bending>100,000 times

[0056] Martindale wear resistance: front side>20,000 times; back side>40,000 times.

[0057] Manufacturing process of sports shoes:

[0058] 1) The obtained upper modified material is conveyed to the silo of the single screw (twin screw) main machine through an automatic feeder;

[0059] 2) Set the temperature of the single screw (twin screw) main machine and run the heating program. The normal process temperature is: feeding section: 100-135°C, plasticizing section: 140-185°C, discharging section: 190-240°C;

[0060] 3) Install the 0.5mm filamentary porous nozzle module and preheat it to 200°C;

[0061] 4) The robot installs the shoe last fixture and inputs the motion trajectory for trial operation;

[0062] 5) Start the air pump, the gas enters the pressure regulating tank, and turn on the air heating device and set it to 80℃;

[0063] 6) Process control operation flow: open the pneumatic valve → ventilate a small amount of hot air from the spinneret module → start the single-screw (twin-screw) main unit → adjust the speed to 30u / min → discharge the material from the spinneret hole → adjust the air output → atomize the filaments → start the robot linkage program → automatically lock the shoe last with the sole → enter the upper spraying area → operate according to the set shoe last movement trajectory → complete the connection between the upper and the sole and the spraying of the upper → place the operation line platform → the integrated sports shoes are obtained.

[0064] Embodiment 2:

[0065] The components of the upper material are as follows: TPU: 45 parts, PA: 15 parts, PE: 10, POE: 25 parts, compatibilizer 2 parts, dispersant 0.2 parts, lubricant 0.1 parts, heat stabilizer 1 part, antistatic agent 1 part, antibacterial agent: 0.7 parts.

[0066] Preparation process of upper material:

[0067] 1) According to the weight requirements of the formula, weigh PA, TPU, PE, POE and compatibilizer and put them into the mixer and mix for 3 to 5 minutes. Then add dispersant, lubricant and other additives and continue mixing for 15 to 20 minutes. After stirring evenly, put them into the feeder;

[0068] 2) The mixed materials enter the feeder on the main machine through the feeder, and are melted, sheared, plasticized, extruded and granulated through the co-rotating parallel twin-screw extruder to obtain a new high-strength elastic upper material; the process conditions of the twin-screw extruder include: front section temperature 130-150°C, middle section temperature 170-180°C, rear section temperature 170-180°C, head temperature 180-190°C; screw speed 200-300r / min.

[0069] The physical properties of the obtained upper material are as follows:

[0070] Warp tension>60kg / 2.24c Weft tension>30kg / 2.34c

[0071] Warp elongation>80% Weft elongation>50%

[0072] Warp tearing>3.8kg Weft tearing>3.8kg

[0073] Burst strength>15kg / cm2 Low temperature bending>30,000 times

[0074] Normal temperature bending>80,000 times

[0075] Martindale wear resistance: front side>18,000 times; back side>35,000 times.

[0076] Fully automatic sports shoes manufacturing process:

[0077] 1) The obtained upper modified material is conveyed to the material bin of the single screw (twin screw) main machine through an automatic feeder;

[0078] 2) Set the temperature of the single screw (twin screw) main machine and run the heating program. The normal process temperature is: feeding section: 100-125°C, plasticizing section: 140-165°C, discharging section: 190-195°C;

[0079] 3) Install the 1mm atomizing porous nozzle module and preheat it to 180°C;

[0080] 4) The robot installs the shoe last fixture and inputs the motion trajectory for trial operation;

[0081] 5) Start the air pump, the gas enters the pressure regulating tank, and turn on the air heating device and set it to 80℃;

[0082] 6) Process control operation flow: open the pneumatic valve → ventilate a small amount of hot air from the spinneret module → start the single-screw (twin-screw) main unit → adjust the speed to 15u / min → discharge the material from the spinneret hole → adjust the air output → atomize the filaments → start the robot linkage program → automatically lock the shoe last with the sole → enter the upper spraying area → operate according to the set shoe last movement trajectory → complete the connection between the upper and the sole and the spraying of the upper → place the operation line platform → the integrated sports shoes are obtained.

[0083] Embodiment 3:

[0084] The components of the upper material are as follows: TPU: 40 parts, PA: 15 parts, EVA: 10 parts, PE: 10 parts, POE: 20 parts, compatibilizer 2 parts, dispersant 0.2 parts, lubricant 0.1 parts, heat stabilizer 1 part, antistatic agent: 1 part, antibacterial agent: 0.7 parts.

[0085] Preparation process of upper material:

[0086] 1) According to the weight requirements of the formula, weigh PA, TPU, EVA, PE, POE and compatibilizer and put them into the mixer and mix for 3 to 5 minutes. Then add dispersant, lubricant and other additives and continue mixing for 20 to 25 minutes. After stirring evenly, put them into the feeder;

[0087] 2) The mixed material is fed into the feeder on the main machine through the feeder, and then melted, sheared, plasticized and extruded into granules through the co-rotating parallel twin-screw extruder to obtain a new high-strength elastic upper material; the process conditions of the twin-screw extruder are: the front section temperature is 140-170°C, the middle section temperature is 170-210°C, the rear section temperature is 180-200°C, and the head temperature is 180-200°C; the screw speed is 200-280r / min.

[0088] The physical properties of the obtained upper material are as follows:

[0089] Warp tension>60kg / 2.64c Weft tension>30kg / 2.64c

[0090] Warp elongation>40% Weft elongation>40%

[0091] Warp tearing>4.5kg Weft tearing>4.5kg

[0092] Burst strength>20kg / cm2 Low temperature bending>35,000 times

[0093] Normal temperature bending>85,000 times

[0094] Martindale wear resistance: front side > 25,000 times; back side > 45,000 times.

[0095] Manufacturing process of sports shoes:

[0096] 1) The obtained upper modified material is conveyed to the silo of the single screw (twin screw) main machine through an automatic feeder.

[0097] 2) Set the temperature of the single screw (twin screw) main machine and run the heating program. The normal process temperature is: feeding section: 130-135°C, plasticizing section: 160-185°C, discharging section: 190-230°C;

[0098] 3) Install the 0.5mm multi-hole interlaced nozzle module and preheat it to 200°C;

[0099] 4) The robot installs the shoe last fixture and inputs the motion trajectory for trial operation;

[0100] 5) Start the air pump, the gas enters the pressure regulating tank, and turn on the air heating device and set it to 80℃;

[0101] 6) Process control operation flow: open the pneumatic valve → ventilate a small amount of hot air from the spinneret module → start the single-screw (twin-screw) main unit → adjust the speed to 25u / min → discharge the material from the spinneret hole → adjust the air output → atomize the filaments → start the robot linkage program → automatically lock the shoe last with the sole → enter the upper spraying area → operate according to the set shoe last movement trajectory → complete the connection between the upper and the sole and the spraying of the upper → place the operation line platform → the integrated sports shoes are obtained.

[0102] The composite material of the invention has good compatibility, and the crystalline material is compatible with the non-crystalline material, and the polar material is compatible with the non-polar material.

[0103] During the meltblowing process, the melt is delivered by high-speed gas, which will generate high heat energy and electrostatic effects during the friction process. Lubricants, heat stabilizers, antistatic agents, antibacterial agents, etc. are added to the formula system.

[0104] Atomized, interwoven and spiral melt-blowing effects are achieved, and according to the design of the spinneret aperture, linear and precise point-to-point contact is achieved during the melt-blowing process.

[0105] The sizes, models and styles of different shoe lasts are mapped through 3D graphics to form motion trajectories for automated operation and imported into the robot linkage program.

[0106] In summary, the present invention provides a high-strength elastic upper material and a preparation method thereof, and then utilizes the upper material to perform glue-free bonding to fully automatically form sports shoes. By preparing the high-strength elastic upper material, using glue-free hot-melt bonding sole technology, and using a fully automatic robot motion trajectory program, atomization point spraying is performed to form an integrated sports shoe.

[0107] Through the extrusion spinning process, the robot drives the shoe last with the sole. When the 3D model of the shoe last is input, the robot moves in a circular trajectory to evenly spray the hot-melt atomized silk material of the upper on the shoe last with the sole, and the sports shoes are made in one go without glue bonding. Through the drawing of the 3D shoe last, the automatic linkage trajectory is perfected, and after the automatic robot programming, a new process of fully automated production of sports shoes without glue bonding is realized, avoiding manual operation errors and cumbersome shoemaking processes and consuming a lot of human resources, improving production efficiency, reducing production costs, and improving product quality.

[0108] The upper material has high strength and toughness, is light and has good resilience. It also has wear-resistant and antibacterial properties. It uses a melt-sprayed filamentary process to make it more skin-friendly and breathable, making it more comfortable to wear.

[0109] The present invention is a continuous production line process technology route, from the spraying of the upper material to the shoe last equipped with the sole, and then integrated into a hot melt bonding process. It solves some of the cumbersome processes of weaving, compounding, punching, sewing, etc. brought about by the traditional composite upper, and avoids the adhesive process of brushing glue between the upper material and the sole material.

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0111] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0112] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. Sports shoe upper material, characterized in that: Its components have the following weight proportions: TPU: 10-60 parts, PA: 5-30 parts, POE: 5-40 parts, compatibilizer: 1-5 parts, dispersant: 0.1-2 parts, lubricant: 0.1-3 parts, heat stabilizer: 1-5 parts, antistatic agent: 1-5 parts, antibacterial agent: 0.1-2 parts.

2. The sports shoe upper material according to claim 1, characterized in that: It also contains the following components in parts by weight: PE: 5 to 30 parts.

3. The sports shoe upper material according to claim 1, characterized in that: It also contains the following components in parts by weight: EVA: 5 to 40 parts, PE: 5 to 20 parts.

4. The method for preparing the sports shoe upper material according to claim 1, characterized in that: The following steps are involved: 1) According to the weight of the formula, weigh PA, TPU, POE and compatibilizer and put them into the mixer and mix for 3 to 8 minutes. Then add dispersant, lubricant, antistatic agent, heat stabilizer and antibacterial agent, continue mixing for 15 to 25 minutes, stir evenly and put them into the feeder; 2) The mixed materials are fed into a feeder through a feeder, and are melted, sheared, plasticized, extruded and granulated by a co-rotating parallel twin-screw extruder to obtain a new upper material.

5. The method for preparing the sports shoe upper material according to claim 4, characterized in that: PE and EVA were also weighed according to the weight proportions of the formula.

6. The method for preparing the sports shoe upper material according to claim 4, characterized in that: The process conditions of the twin-screw extruder are: front section temperature 130-170°C, middle section temperature 170-210°C, rear section temperature 180-200°C, head temperature 180-200°C; screw speed 200-360r / min.

7. A process for forming sports shoes using the upper material of claim 1, characterized in that: The following steps are involved: 1) Convey the prepared upper material to the material bin of the screw main machine; 2) Adjust the temperature of the screw main engine to: feeding section: 100-135°C, plasticizing section: 140-185°C, discharging section: 190-240°C; 3) Assemble the spinneret module on the extruder outlet and preheat it to 175-200°C; 4) Install the shoe last fixture on the robot's manipulator and input the motion trajectory for trial operation; 5) The gas is passed into the pressure-stabilizing tank, the air heating device is turned on, and the gas temperature is set to 40-80°C; 6) Introduce a small amount of hot air into the spinneret module, adjust the speed of the screw main engine to 5-25u / min, discharge the material from the spinneret module, adjust the air output, and spray out the atomized filaments. The robot locks the shoe last with the sole into the spraying upper area and operates according to the movement trajectory of the shoe last. The robot moves around the trajectory to evenly spray the hot-melt atomized filamentary material of the upper on the shoe last with the sole, connect the upper and the sole, and spray the upper. After hot-melt bonding and integrated molding, an integrated sports shoe is obtained.

8. The process for forming sports shoes according to claim 7, characterized in that: The spinneret module is a 0.3mm atomizing porous nozzle, a 0.5mm filamentary porous nozzle or a 1mm thick filament braided nozzle.

9. The process for forming sports shoes according to claim 7, characterized in that: According to the size, model and style of the sole and last, the movement trajectory of the robot is obtained by mapping the 3D map and comparing the fixed injection points.

10. The process for forming sports shoes according to claim 7, characterized in that: Control the temperature of the hot air source and adjust the air pressure to make the wire output from the nozzle uniform and straight, and at the same time achieve hot melting state with the sole.

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