Processing technology of high-toughness composite non-woven fabric

Abstract

The invention discloses a processing technology of a high-toughness composite non-woven fabric, and relates to the technical field of non-woven fabrics, and the processing technology comprises the following steps: raw material preparation, fiber mixing and lapping, dipping bonding treatment, hot-pressing composite molding and post-treatment; through the elaborately designed processing technology, specific high-strength polymer fibers and tough fibers are selected and mixed and laid in proportion, the strength and toughness of the composite non-woven fabric are effectively improved, and the composite non-woven fabric can meet the requirements of more special application scenes; the unique opening equipment structure comprises the rapid separation mechanism, the scattering device and the like, fibers can be fully scattered, it is ensured that the performance of the fibers is fully exerted in subsequent processing, and the product quality stability is improved; according to the invention, the dipping time and content of the binder in the dipping and bonding treatment link as well as the temperature, pressure, time and other parameters of the hot-pressing composite molding process are accurately controlled, and the consistency and reliability of the product quality are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of nonwoven fabrics, and in particular to a processing technology for high-strength and tough composite nonwoven fabrics. Background Art

[0002] As a new type of environmentally friendly material, non-woven fabrics are widely used in many fields. However, with the continuous improvement of material performance requirements in various industries, traditional non-woven fabrics are gradually unable to meet the needs of some special application scenarios in terms of strength and toughness. For example, in the field of industrial filtration, non-woven fabrics are required to withstand greater pressure and friction while maintaining good structural integrity; in terms of high-performance packaging materials, non-woven fabrics are required to have strong tear resistance to protect the safety of packaged items during transportation and storage; in order to overcome the performance limitations of traditional non-woven fabrics, the research and development of high-strength and tough composite non-woven fabrics has become an important research direction in the industry. In the existing technology, there are many problems in the processing technology of some composite non-woven fabrics. Some processes make it difficult to ensure that high-strength fibers and tough fibers are evenly and accurately mixed in the fiber mixing stage, resulting in unstable performance and poor consistency of composite non-woven fabrics. In the process of fiber opening, the opening equipment has a simple structure and a single function, and cannot effectively break up the fibers to an ideal state, making it difficult for the fibers to fully exert their performance advantages in subsequent processing, affecting the strength and toughness of the final product; in addition, in the impregnation and bonding process, the uneven impregnation of the binder or the inaccurate content control can easily cause problems such as local loose bonding of the composite non-woven fabric or excessive overall hardness and insufficient flexibility. In the hot pressing composite molding process, the control of parameters such as temperature, pressure and time is not precise enough, which can also lead to large fluctuations in product quality. Moreover, some processing technologies lack a complete post-processing process and cannot effectively improve the surface properties of composite non-woven fabrics, such as antistatic and waterproof properties, which limits their application in some electrostatically sensitive or humid environments; in summary, it is particularly urgent and necessary to develop a high-strength and tough composite non-woven fabric processing technology with a reasonable structure, precise operation, and good post-processing effect, which can effectively improve the strength and toughness of composite non-woven fabrics, and can meet the growing needs of industrial production and high-end applications, and promote the non-woven fabric industry to develop in the direction of high performance and multi-function. Summary of the invention

[0003] The purpose of the present invention is to provide a processing technology for high-strength and toughness composite non-woven fabrics in order to solve the above-mentioned problems, which solves the problems existing in the traditional non-woven fabric processing technology, such as uneven fiber mixing, insufficient opening, poor binder treatment, inaccurate control of hot pressing molding parameters and imperfect post-processing, which lead to insufficient strength and toughness of the composite non-woven fabrics, unstable performance and limited application.

[0004] In order to solve the above problems, the present invention provides a technical solution: a processing technology of a high-strength and tough composite non-woven fabric, comprising the following steps: A. Raw materials preparation: a. Preparation of fiber materials: high-strength polymer fibers and tough fibers are selected, and are opened by opening equipment respectively, and then combed to obtain high-strength fiber webs and tough fiber webs respectively; b. Preparation of adhesive: Use thermoplastic resin or water-based adhesive; B. Fiber mixing and laying: a. Mixed fibers: Mix the high-strength fiber web and the toughness fiber web in a mixing machine according to the proportion; b. Laying and forming: Using air-laid or mechanical laying equipment to evenly lay the mixed fibers into a multi-layer fiber web. The thickness of the fiber web is controlled between 1-5 mm, the number of layers is controlled between 3-10, and the arrangement of each layer of fibers is cross-arranged; C. Impregnation bonding treatment: a. Impregnation: The fiber web is impregnated with the binder in the impregnation tank for 10-30 seconds; b. Glue removal: Use squeeze roller or vacuum suction to remove excess binder to make the content reach 10%-30% of the fiber weight; D. Hot pressing composite molding: a. Hot pressing: hot pressing for 10-60 seconds at 120-200℃ and 50-200 kPa pressure and forming; b. Cooling: Natural cooling or air cooling or water cooling to room temperature; E. Post-processing process: a. Trimming: trim the edges to remove irregular parts and make the size meet the product specification requirements; b. Surface treatment: Antistatic and waterproof treatment is performed on the surface of the composite non-woven fabric; c. Quality inspection: Conduct stretching, tearing, toughness and other tests on composite non-woven fabrics, and pack and store qualified materials; The specific structure of the loosening equipment in step A includes an outer shell, a quick separation mechanism, a breaking up device, a conveying channel and a conveying mechanism; a conveying channel is provided in the central interior of the outer shell; a quick separation mechanism is provided on the upper right side of the conveying channel, a conveying mechanism is provided on the lower side of the conveying channel, and a breaking up device is provided on the upper side of the conveying channel.

[0005] Preferably, the high-strength polymer fiber in step A is polyester fiber or polyacrylonitrile fiber, and the tough fiber is polyamide fiber or natural hemp fiber.

[0006] Preferably, the ratio of the high-strength fiber web to the toughness fiber web in step B is 3:1.

[0007] Preferably, the specific structure of the quick separation mechanism includes a feeding channel, a conveying roller, a nail 1, a motor 1, a separation comb 1, a nail 2, a separation roller, a motor 2 and a separation comb; the feeding channel is opened on the upper right side of the outer shell, the lower left outlet of the feeding channel is connected to the right side of the conveying channel, the right side of the feeding channel is movably connected to the conveying roller, and a number of nails 1 are fixedly connected to the conveying roller; the motor 1 is fixedly connected to the outside of the right rear side of the outer shell, and the output shaft of the motor 1 is fixedly connected to the rear center of the conveying roller; the separation comb 1 is located on the lower left side of the conveying roller, and the separation comb 1 is fixedly connected to the right side of the feeding channel; the motor 2 is fixedly connected to the outside of the right rear side of the outer shell; the separation roller is movably connected to the lower left side of the feeding channel, the rear center of the separation roller is fixedly connected to the output shaft of the motor 2, and a number of nails 2 are fixedly connected to the outside of the separation roller; the separation comb is located on the left side of the separation roller, and the separation comb is fixedly connected to the lower left side of the feeding channel.

[0008] Preferably, the motor 1 and the motor 2 are both servo motors or stepper motors.

[0009] Preferably, the specific structure of the dispersing device includes motor three, spline shaft one, spline shaft two, fixed housing, screw one, motor four, motor five, dispersing mechanism, driving gear one, driven gear one and movable housing; spline shaft one and spline shaft two are movably connected on the upper side of the fixed housing, motor three is fixedly connected on the right side of the fixed housing, and motor four and motor five are fixedly connected on the left side of the fixed housing; the left output shaft of motor three is fixedly connected to the right center of spline shaft one; driving gear one is fixedly connected to the right output shaft of motor four; The driven gear 1 is fixedly connected to the left side of the spline shaft 2, and the driven gear 1 is connected to the driving gear 1; the screw 1 is movably connected to the rear side of the fixed shell, and the left center of the screw 1 is fixedly connected to the right output shaft of the motor 5; there are several movable shells, and the exteriors of several movable shells are fixedly connected to the interior of the lower side of the fixed shell, and the threaded holes arranged on the rear sides of several movable shells are connected to the screw 1, and the interiors of several movable shells are provided with a breaking mechanism, and the upper sides of the breaking mechanisms are connected to the spline shaft 1 and the spline shaft 2.

[0010] Preferably, the specific structure of the dispersing mechanism includes a second driving gear, a second driven gear, a third spline shaft, an inner cavity, a movable seat, a first transmission gear, a second transmission gear, a swivel, a connecting shaft, a movable block, a guide hole plate, a dispersing rod, a second screw, a third driven gear, a bevel gear, a spur gear and a third driving gear; the second driving gear is movably connected to the inside of the upper left side of the movable housing, and the spline hole arranged in the center of the second driving gear is connected to the second spline shaft; the inner cavity is arranged inside the lower side of the movable housing, and the left side of the inner cavity is movably connected with the third spline shaft, and the upper side of the third spline shaft is fixedly connected with the second driven gear, and the second driven gear is connected to the driving gear. The gears are connected; the outer part of the movable seat is vertically movably connected to the inner cavity; there are a plurality of transmission gears 2, which are arranged horizontally and vertically and are all movably connected to the upper part of the movable seat, and a plurality of transmission gears 2 are connected to each other, and a swivel is fixedly connected to the central axis of the lower side of the plurality of transmission gears 2, and a connecting shaft is fixedly connected to the lower edge of the swivel; the transmission gear 1 is movably connected to the inner part of the upper left side of the movable seat, and the spline hole arranged in the center of the transmission gear 1 is connected to the spline shaft three-phase, and the transmission gear 1 is connected to a transmission gear 2 on the left side; the movable block is a plurality of Several movable blocks are respectively located at the lower side of the corresponding swivel, several movable blocks are all movably connected to the lower side of the movable seat in a transverse manner, several movable blocks are fixedly connected to a breaking rod in the lower center, several movable blocks are provided with longitudinal slide grooves on the top surfaces, and the slide grooves are movably connected to the corresponding connecting shaft outsides; there are several guide hole plates, several guide hole plates are movably connected to the corresponding breaking rod outsides in the central parts, and several guide hole plates are movably connected to the lower side of the movable shell; there are two screw rods, and the two screw rods are movably connected to the left and right sides of the inner cavity center. On both sides, the two screw rods 2 are respectively connected to the threaded holes set on the left and right sides of the center of the movable seat, and the upper ends of the two screw rods 2 are fixedly connected with the driven gear 3; there are two spur gears, and the two spur gears are respectively movably connected to the inside of the center on both sides of the upper side of the movable shell, and the central interiors of the two spur gears are movably connected to the outside of the spline shaft 2, and the right sides of the two spur gears are fixedly connected with bevel gears, and the bevel gears are respectively connected to the corresponding driven gear three phases, and the upper sides of the two spur gears are respectively connected to the corresponding driving gear three phases, and the spline holes set in the center of the driving gear three are connected to the spline shaft one.

[0011] Preferably, the motor three, the motor four and the motor five are all servo motors or stepper motors.

[0012] Preferably, the specific structure of the conveying mechanism includes a driven roller, a support seat, a conveyor belt, a driving roller and a six-motor; the driven roller is movably connected to the right side of the conveying channel; the six-motor is fixedly connected to the outside of the left rear side of the outer shell; the driving roller is movably connected to the left side of the conveying channel, the rear center of the driving roller is fixedly connected to the output shaft of the six-motor, and the driving roller is connected to the driven roller through the conveyor belt; the support seat is fixedly connected to the inside of the conveying channel, and the top surface of the support seat is connected to the inner top surface of the conveyor belt.

[0013] Preferably, the motor six is ​​a servo motor or a stepper motor.

[0014] The beneficial effects of the present invention are as follows: (1) The present invention uses a carefully designed processing technology, selects specific high-strength polymer fibers and toughness fibers, and mixes and lays them in proportion, thereby effectively improving the strength and toughness of the composite non-woven fabric, so that it can meet the needs of more special application scenarios.

[0015] (2) The unique opening equipment structure of the present invention, including a quick separation mechanism, a breaking up device, etc., can fully break up the fibers, ensure that the performance of the fibers can be fully utilized in subsequent processing, and improve the stability of product quality.

[0016] (3) The present invention accurately controls the impregnation time and content of the binder in the impregnation bonding process, as well as the temperature, pressure and time parameters of the hot pressing composite molding process, thereby ensuring the consistency and reliability of product quality.

[0017] (4) The improved post-treatment process of the present invention, such as antistatic treatment and waterproof treatment, significantly improves the surface properties of the composite non-woven fabric and broadens its application range, making it suitable for use in static-sensitive or humid environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 for Figure 1 sectional view of .

[0020] Figure 3 It is a structural schematic diagram of the quick separation mechanism.

[0021] Figure 4 It is a structural schematic diagram of the disintegration device.

[0022] Figure 5 for Figure 4 Schematic diagram of the structure of the disintegration mechanism.

[0023] Figure 6 It is a structural diagram of the conveying mechanism.

[0024] 1-outer shell; 2-quick separation mechanism; 3-dispersing device; 4-conveying channel; 5-conveying mechanism; 21-feeding channel; 22-conveying roller; 23-nail 1; 24-motor 1; 25-separation comb 1; 26-nail 2; 27-separation roller; 28-motor 2; 29-separation comb; 31-motor 3; 32-spline shaft 1; 33-spline shaft 2; 34-fixed shell; 35-screw 1; 36-motor 4; 37-motor 5; 38-dispersing mechanism; 39-driving gear 1; 310-driven gear 1; 311-movable shell; 381-driving gear 2; 382-driven gear 2; 383-spline shaft 3; 384-inner cavity; 385-movable seat; 386-transmission gear 1; 387-transmission gear 2; 388-swivel; 389-connecting shaft; 3810-movable block; 3811-guide plate; 3812-breaking rod; 3813-screw 2; 3814-driven gear 3; 3815-bevel gear; 3816-spur gear; 3817-driving gear 3; 51-driven roller; 52-support seat; 53-conveyor belt; 54-driving roller; 55-motor 6. DETAILED DESCRIPTION

[0025] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical solution: A processing technology of high-strength and tough composite non-woven fabric, comprising the following steps: A. Raw materials preparation: a. Preparation of fiber materials: high-strength polymer fibers and tough fibers are selected, and are opened by opening equipment respectively, and then combed to obtain high-strength fiber webs and tough fiber webs respectively; b. Preparation of adhesive: Use thermoplastic resin or water-based adhesive; B. Fiber mixing and laying: a. Mixed fibers: Mix the high-strength fiber web and the toughness fiber web in a mixing machine according to the proportion; b. Laying and forming: Using air-laid or mechanical laying equipment to evenly lay the mixed fibers into a multi-layer fiber web. The thickness of the fiber web is controlled between 1-5 mm, the number of layers is controlled between 3-10, and the arrangement of each layer of fibers is cross-arranged; C. Impregnation bonding treatment: a. Impregnation: The fiber web is impregnated with the binder in the impregnation tank for 10-30 seconds; b. Glue removal: Use squeeze roller or vacuum suction to remove excess binder to make the content reach 10%-30% of the fiber weight; D. Hot pressing composite molding: a. Hot pressing: hot pressing for 10-60 seconds at 120-200℃ and 50-200 kPa pressure and forming; b. Cooling: Natural cooling or air cooling or water cooling to room temperature; E. Post-processing process: a. Trimming: trim the edges to remove irregular parts and make the size meet the product specification requirements; b. Surface treatment: Antistatic and waterproof treatment is performed on the surface of the composite non-woven fabric; c. Quality inspection: Conduct stretching, tearing, toughness and other tests on composite non-woven fabrics, and pack and store qualified materials; The specific structure of the loosening equipment in step A includes an outer shell 1, a quick separation mechanism 2, a breaking up device 3, a conveying channel 4 and a conveying mechanism 5; a conveying channel 4 is provided in the central interior of the outer shell 1; a quick separation mechanism 2 is provided on the upper right side of the conveying channel 4, a conveying mechanism 5 is provided on the lower side of the conveying channel 4, and a breaking up device 3 is provided on the upper side of the conveying channel 4.

[0026] Wherein, the high-strength polymer fiber in step A is polyester fiber or polyacrylonitrile fiber, and the tough fiber is polyamide fiber or natural hemp fiber; and the ratio of the high-strength fiber web to the tough fiber web in step B is 3:1.

[0027] like Figure 3 As shown, the specific structure of the quick separation mechanism 2 includes a feeding channel 21, a conveying roller 22, a nail 23, a motor 24, a separation comb 25, a nail 26, a separation roller 27, a motor 28 and a separation comb 29; the feeding channel 21 is opened on the upper right side of the outer shell 1, and the lower left outlet of the feeding channel 21 is connected to the right side of the conveying channel 4. The right side of the feeding channel 21 is movably connected to the conveying roller 22, and a plurality of nails 23 are fixedly connected to the conveying roller 22; the motor 24 is fixedly connected to the outside of the right rear side of the outer shell 1, and the motor 24 is fixedly connected to the outside of the right rear side of the outer shell 1. The output shaft 24 is fixedly connected to the rear center of the conveying roller 22; the separation comb 25 is located at the lower left side of the conveying roller 22, and the separation comb 25 is fixedly connected to the right side of the feeding channel 21; the motor 28 is fixedly connected to the outside of the right rear side of the outer shell 1; the separation roller 27 is movably connected to the lower left side of the feeding channel 21, and the rear center of the separation roller 27 is fixedly connected to the output shaft of the motor 28, and a plurality of nails 26 are fixedly connected to the outside of the separation roller 27; the separation comb 29 is located on the left side of the separation roller 27, and the separation comb 29 is fixedly connected to the lower left side of the feeding channel 21.

[0028] Wherein, the motor 1 24 and the motor 2 28 are both servo motors or stepper motors, so that the motor 1 24 and the motor 2 28 can be easily controlled by existing automation technology.

[0029] like Figure 4As shown, the specific structure of the dispersing device 3 includes a motor 31, a spline shaft 1 32, a spline shaft 2 33, a fixed housing 34, a screw 1 35, a motor 4 36, a motor 5 37, a dispersing mechanism 38, a driving gear 1 39, a driven gear 1 310 and a movable housing 311; the spline shaft 1 32 and the spline shaft 2 33 are movably connected to the upper side of the fixed housing 34, the motor 31 is fixedly connected to the right side of the fixed housing 34, and the motor 4 36 and the motor 5 37 are fixedly connected to the left side of the fixed housing 34; the left output shaft of the motor 31 is fixedly connected to the right center of the spline shaft 1 32; the driving gear 1 is fixedly connected to the right output shaft of the motor 4 36 39; the driven gear 1 310 is fixedly connected to the left side of the spline shaft 2 33, and the driven gear 1 310 is connected to the driving gear 1 39; the screw 1 35 is movably connected to the rear side of the fixed housing 34, and the left center of the screw 1 35 is fixedly connected to the right output shaft of the motor 5 37; there are several movable housings 311, and the exteriors of several movable housings 311 are fixedly connected to the interior of the lower side of the fixed housing 34, and the threaded holes arranged on the rear sides of several movable housings 311 are connected to the screw 1 35, and the interiors of several movable housings 311 are provided with a breaking mechanism 38, and the upper sides of the breaking mechanism 38 are connected to the spline shaft 1 32 and the spline shaft 2 33.

[0030] like Figure 5As shown, the specific structure of the dispersing mechanism 38 includes a driving gear 2 381, a driven gear 2 382, ​​a spline shaft 383, an inner cavity 384, a movable seat 385, a transmission gear 1 386, a transmission gear 2 387, a swivel 388, a connecting shaft 389, a movable block 3810, a guide hole plate 3811, a dispersing rod 3812, a screw 2 3813, a driven gear 3 3814, a bevel gear 3815, a spur gear 3816 and a driving gear 3 3817; the driving gear 2 381 is movably connected to the inside of the upper left side of the movable housing 311, and the spline hole arranged in the center of the driving gear 2 381 is connected to the spline shaft 2 33; the inner cavity 384 It is arranged inside the lower side of the movable shell 311, and the left side of the inner cavity 384 is movably connected with the spline shaft 383, and the upper side of the spline shaft 383 is fixedly connected with the driven gear 2 382, ​​and the driven gear 2 382 is connected to the driving gear 2 381; the outer side of the movable seat 385 is vertically movably connected to the inner cavity 384; there are a plurality of transmission gears 2 387, and the plurality of transmission gears 2 387 are arranged horizontally and vertically and are all movably connected to the upper side of the movable seat 385. The plurality of transmission gears 2 387 are connected to each other, and a swivel 388 is fixedly connected to the lower central axis of the plurality of transmission gears 2 387, and the lower edge of the swivel 388 is They are all fixedly connected with a connecting shaft 389; the transmission gear 1 386 is movably connected to the inner part of the upper left side of the movable seat 385, the spline hole arranged in the center of the transmission gear 1 386 is connected to the spline shaft 383, and the transmission gear 1 386 is connected to a transmission gear 2 387 on the left side; there are a plurality of movable blocks 3810, and a plurality of the movable blocks 3810 are respectively located directly below the corresponding swivel 388, and a plurality of the movable blocks 3810 are all laterally movably connected to the inner part of the lower side of the movable seat 385, a plurality of the movable blocks 3810 are fixedly connected with a breaking rod 3812 in the center of the lower side, and a plurality of the movable blocks 3810 are provided on the top surfaces There are longitudinal slide grooves, and the slide grooves are movably connected to the corresponding connecting shaft 389 outside; there are a plurality of guide hole plates 3811, and the central interiors of a plurality of the guide hole plates 3811 are movably connected to the corresponding breaking rods 3812 outside, and the exteriors of a plurality of the guide hole plates 3811 are movably connected to the lower interior of the movable housing 311; there are two screw rods 3813, and the two screw rods 3813 are movably connected to the left and right sides of the center of the inner cavity 384, and the two screw rods 3813 are respectively connected to the threaded holes set on the left and right sides of the center of the movable seat 385, and the upper ends of the two screw rods 3813 are fixedly connected to the driven gears 3 3814;There are two spur gears 3816, which are movably connected to the inner sides of the upper center of the movable housing 311, and the inner centers of the two spur gears 3816 are movably connected to the outer sides of the spline shaft 2 33. The outer sides of the two spur gears 3816 are fixedly connected with bevel gears 3815, and the bevel gears 3815 are respectively connected to the corresponding driven gears 3 3814. The upper sides of the two spur gears 3816 are respectively connected to the corresponding driving gears 3 3817, and the spline holes set in the center of the driving gears 3 3817 are connected to the spline shaft 1 32.

[0031] Among them, the motor three 31, the motor four 36 and the motor five 37 are all servo motors or stepper motors, so it is convenient to control the motor three 31, the motor four 36 and the motor five 37 through existing automation technology.

[0032] like Figure 6 As shown, the specific structure of the conveying mechanism 5 includes a driven roller 51, a support seat 52, a conveyor belt 53, a driving roller 54 and a motor 55; the driven roller 51 is movably connected to the right side of the conveying channel 4; the motor 55 is fixedly connected to the outside of the left rear side of the outer shell 1; the driving roller 54 is movably connected to the left side of the conveying channel 4, the rear center of the driving roller 54 is fixedly connected to the output shaft of the motor 55, and the driving roller 54 is connected to the driven roller 51 through the conveyor belt 53; the support seat 52 is fixedly connected to the inside of the conveying channel 4, and the top surface of the support seat 52 is connected to the inner top surface of the conveyor belt 53.

[0033] Wherein, the motor six 55 is a servo motor or a stepper motor, so that it is convenient to control the motor six 55 through existing automation technology.

[0034] The use status of the present invention is as follows: the present invention has a reasonable and simple structure, low production cost and convenient installation. When processing high-strength and tough composite non-woven fabrics, firstly, high-strength polymer fibers (such as polyester fibers or polyacrylonitrile fibers) and tough fibers (such as polyamide fibers or natural hemp fibers) are respectively put into the feeding channel 21 of the opening device, and the motor 24 drives the conveying roller 22 to rotate, and the nail 23 on the conveying roller 22 drives the fibers to move to the lower left side, and at the same time, the separation comb 25 performs preliminary separation and combing on the fibers, then, the motor 28 drives the separation roller 27 to rotate, and the nail 26 on the separation roller 27 further separates the fibers, and the separation comb 29 combs again to make the fibers initially loose, and then further loosens them through the scattering device 3, and at the same time, the conveying mechanism 5 conveys the loosened fibers to the left, and then the opened fibers are combed to obtain a high-strength fiber web and a tough fiber web, and then the high-strength fiber web and the tough fiber web are pressed 3. The mixed fibers are mixed in a cotton blending machine at a ratio of 1:1. The mixed fibers are conveyed to an air-laid or mechanical web laying device and evenly laid into a fiber web with a thickness of 1-5 mm, 3-10 layers, and cross-arranged fibers in each layer. The fiber web is placed in an impregnation tank and impregnated with a binder for 10-30 seconds, and then the excess binder is removed by squeezing rollers or vacuum suction to make the binder content reach 10%-30% of the fiber weight. Then the treated fiber web is sent to a hot press and hot-pressed for 10-60 seconds at 120-200°C and 50-200 kPa pressure to form it, and then naturally cooled or air-cooled or water-cooled to room temperature. In the post-processing process, the formed composite non-woven fabric is first trimmed to remove the irregular edges so that its size meets the product specification requirements. Then the surface of the composite non-woven fabric is treated with antistatic and waterproof treatments. Finally, the composite non-woven fabric is tested for stretching, tearing, toughness, etc., and the qualified products are packaged and put into storage.In the whole fiber opening process, the breaking device 3 of the opening equipment also plays an important role. The motor 31 drives the spline shaft 1 32 to rotate, the motor 4 36 drives the driving gear 1 39 to rotate, and then drives the driven gear 1 310 and the spline shaft 2 33 to rotate, the motor 5 37 drives the screw 1 35 to rotate, so that the movable shell 311 moves left and right, the spline shaft 1 32 and the spline shaft 2 33 drive the breaking mechanism 38 to work, the driving gear 2 381 rotates under the drive of the spline shaft 2 33, and then drives the driven gear 2 382 and the spline shaft 3 383 to rotate, the transmission gear 1 386 is connected to the spline shaft 383 and drives the transmission gear 2 387 to rotate, the transmission gear 2 387 drives the swivel 388 to rotate, and the swivel 388 rotates. The body 388 drives the movable block 3810 to move horizontally repeatedly through the connecting shaft 389, and the movable block 3810 drives the breaking rod 3812 to vibrate horizontally to break the fibers. At the same time, the spur gear 3816 rotates under the drive of the spline shaft 2 33, and the bevel gear 3815 cooperates with the driven gear 3 3814 to drive the screw 2 3813 to rotate, thereby adjusting the overall up and down movement of the movable seat 385, which also meets the need for the vibrating breaking rod 3812 to move up and down, thereby improving the breaking effect; and in the process of fiber conveying, the motor 6 55 drives the active roller 54 to rotate, and the active roller 54 drives the driven roller 51 to rotate through the conveyor belt 53, and under the support of the support seat 52, the fibers are stably conveyed to the subsequent process. ;

[0035] The control method in the present invention is to start manually or control through existing automation technology. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0036] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0037] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0038] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A processing technology for high-strength and tough composite non-woven fabric, characterized in that: The following steps are involved: A. Raw materials preparation: a. Preparation of fiber materials: high-strength polymer fibers and tough fibers are selected, and are opened by opening equipment respectively, and then combed to obtain high-strength fiber webs and tough fiber webs respectively; b. Preparation of adhesive: Use thermoplastic resin or water-based adhesive; B. Fiber mixing and laying: a. Mixed fibers: Mix the high-strength fiber web and the toughness fiber web in a mixing machine according to the proportion; b. Laying and forming: Using air-laid or mechanical laying equipment to evenly lay the mixed fibers into a multi-layer fiber web. The thickness of the fiber web is controlled between 1-5 mm, the number of layers is controlled between 3-10, and the arrangement of each layer of fibers is cross-arranged; C. Impregnation bonding treatment: a. Impregnation: The fiber web is impregnated with the binder in the impregnation tank for 10-30 seconds; b. Glue removal: Use squeeze roller or vacuum suction to remove excess binder to make the content reach 10%-30% of the fiber weight; D. Hot pressing composite molding: a. Hot pressing: hot pressing for 10-60 seconds at 120-200℃ and 50-200 kPa pressure and forming; b. Cooling: Natural cooling or air cooling or water cooling to room temperature; E. Post-processing process: a. Trimming: trim the edges to remove irregular parts and make the size meet the product specification requirements; b. Surface treatment: Antistatic and waterproof treatment is performed on the surface of the composite non-woven fabric; c. Quality inspection: Conduct stretching, tearing, toughness and other tests on composite non-woven fabrics, and pack and store qualified materials; The specific structure of the opening device in step A comprises an outer shell (1), a quick separation mechanism (2), a breaking device (3), a conveying channel (4) and a conveying mechanism (5); A conveying channel (4) is provided in the central interior of the outer shell (1); A quick separation mechanism (2) is provided on the upper right side of the conveying channel (4), a conveying mechanism (5) is provided on the lower side of the conveying channel (4), and a dispersing device (3) is provided on the upper side of the conveying channel (4).

2. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 1 is characterized in that: The high-strength polymer fiber in step A is polyester fiber or polyacrylonitrile fiber, and the tough fiber is polyamide fiber or natural hemp fiber.

3. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 1 is characterized in that: The ratio of the high-strength fiber web to the toughness fiber web in step B is 3:

1.

4. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 1 is characterized in that: The specific structure of the quick separation mechanism (2) includes a feeding channel (21), a conveying roller (22), a nail 1 (23), a motor 1 (24), a separation comb 1 (25), a nail 2 (26), a separation roller (27), a motor 2 (28) and a separation comb (29); The feeding channel (21) is opened on the upper right side of the outer shell (1); the lower left side outlet of the feeding channel (21) is connected to the right side interior of the conveying channel (4); the right side interior of the feeding channel (21) is movably connected to a conveying roller (22), and a plurality of nails (23) are fixedly connected to the conveying roller (22); The motor 1 (24) is fixedly connected to the outside of the right rear side of the outer shell (1), and the output shaft of the motor 1 (24) is fixedly connected to the rear center of the conveying roller (22); The separation comb 1 (25) is located at the lower left side of the conveying roller (22), and the separation comb 1 (25) is fixedly connected to the right side of the feeding channel (21); The second motor (28) is fixedly connected to the outside of the right rear side of the outer shell (1); The separation roller (27) is movably connected to the lower left side of the feeding channel (21), the rear center of the separation roller (27) is fixedly connected to the output shaft of the second motor (28), and the outside of the separation roller (27) is fixedly connected to a plurality of second nails (26); The separation comb (29) is located on the left side of the separation roller (27), and the separation comb (29) is fixedly connected to the lower left side of the feeding channel (21).

5. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 4 is characterized in that: The motor 1 (24) and the motor 2 (28) are both servo motors or stepper motors.

6. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 1, characterized in that: The specific structure of the dispersing device (3) includes a motor three (31), a spline shaft one (32), a spline shaft two (33), a fixed housing (34), a screw rod one (35), a motor four (36), a motor five (37), a dispersing mechanism (38), a driving gear one (39), a driven gear one (310) and a movable housing (311); The upper side of the interior of the fixed housing (34) is movably connected to a spline shaft 1 (32) and a spline shaft 2 (33); the right side of the fixed housing (34) is fixedly connected to a motor 3 (31); and the left side of the fixed housing (34) is fixedly connected to a motor 4 (36) and a motor 5 (37); The left output shaft of the motor three (31) is fixedly connected to the right center of the spline shaft one (32); A driving gear 1 (39) is fixedly connected to the right output shaft of the motor 4 (36); The driven gear 1 (310) is fixedly connected to the left side of the spline shaft 2 (33), and the driven gear 1 (310) is connected to the driving gear 1 (39); The screw rod 1 (35) is movably connected to the rear side of the fixed housing (34), and the left center of the screw rod 1 (35) is fixedly connected to the right output shaft of the motor 5 (37); There are several movable shells (311), the exteriors of the several movable shells (311) are fixedly connected to the interior of the lower side of the fixed shell (34), the threaded holes arranged on the rear sides of the several movable shells (311) are connected to the first screw rod (35), the interiors of the several movable shells (311) are provided with a dispersing mechanism (38), and the upper sides of the dispersing mechanism (38) are connected to the first spline shaft (32) and the second spline shaft (33).

7. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 6 is characterized in that: The specific structure of the dispersing mechanism (38) includes a second driving gear (381), a second driven gear (382), a third spline shaft (383), an inner cavity (384), a movable seat (385), a first transmission gear (386), a second transmission gear (387), a swivel (388), a connecting shaft (389), a movable block (3810), a guide hole plate (3811), a dispersing rod (3812), a second screw rod (3813), a third driven gear (3814), a bevel gear (3815), a spur gear (3816) and a third driving gear (3817); The second driving gear (381) is movably connected inside the upper left side of the movable housing (311), and the spline hole arranged in the center of the second driving gear (381) is connected to the second spline shaft (33); The inner cavity (384) is arranged inside the lower side of the movable housing (311), and the left side of the inner cavity (384) is movably connected to the spline shaft 3 (383), and the upper side of the spline shaft 3 (383) is fixedly connected to the driven gear 2 (382), and the driven gear 2 (382) is connected to the driving gear 2 (381); The outside of the movable seat (385) is vertically movably connected to the inside of the inner cavity (384); The transmission gears (387) are in a plurality, the plurality of transmission gears (387) are arranged in a transverse and longitudinal direction and are movably connected to the interior of the upper side of the movable seat (385), the plurality of transmission gears (387) are connected to each other, a swivel (388) is fixedly connected to the central axis at the lower side of the plurality of transmission gears (387), and a connecting shaft (389) is fixedly connected to the lower edge of the swivel (388); The transmission gear 1 (386) is movably connected to the interior of the upper left side of the movable seat (385); a spline hole arranged in the center of the transmission gear 1 (386) is connected to the spline shaft 3 (383); the transmission gear 1 (386) is connected to a transmission gear 2 (387) on the left side; There are a plurality of movable blocks (3810), each of which is located directly below the corresponding swivel (388). Each of the movable blocks (3810) is movably connected to the inside of the lower side of the movable seat (385) in a transverse manner. A breaking rod (3812) is fixedly connected to the center of the lower side of each of the movable blocks (3810). A longitudinal slide groove is formed on the top surface of each of the movable blocks (3810), and the slide groove is movably connected to the outside of the corresponding connecting shaft (389). There are a plurality of guide hole plates (3811), the central interiors of a plurality of the guide hole plates (3811) are movably connected to the exteriors of the corresponding breaking rods (3812), and the exteriors of a plurality of the guide hole plates (3811) are movably connected to the interior of the lower side of the movable housing (311); There are two screw rods (3813), and the two screw rods (3813) are movably connected to the left and right sides of the center of the inner cavity (384), and the two screw rods (3813) are respectively connected to the threaded holes provided on the left and right sides of the center of the movable seat (385), and the upper ends of the two screw rods (3813) are fixedly connected to the driven gear three (3814); There are two spur gears (3816), and the two spur gears (3816) are movably connected to the interior of the two sides of the center of the upper side of the movable housing (311). The interior of the center of the two spur gears (3816) is movably connected to the exterior of the second spline shaft (33). The exterior of the right side of the two spur gears (3816) is fixedly connected with a bevel gear (3815), and the bevel gears (3815) are respectively connected to the corresponding driven gear three (3814). The upper sides of the two spur gears (3816) are respectively connected to the corresponding driving gear three (3817), and the spline holes arranged in the center of the driving gear three (3817) are connected to the spline shaft one (32).

8. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 6, characterized in that: The motor three (31), the motor four (36) and the motor five (37) are all servo motors or stepper motors.

9. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 1, characterized in that: The specific structure of the conveying mechanism (5) includes a driven roller (51), a support seat (52), a conveyor belt (53), a driving roller (54) and a motor six (55); The driven roller (51) is movably connected to the right side of the conveying channel (4); The motor six (55) is fixedly connected to the outside of the left rear side of the outer shell (1); The active roller (54) is movably connected to the left side of the conveying channel (4), the rear center of the active roller (54) is fixedly connected to the output shaft of the motor six (55), and the active roller (54) is connected to the driven roller (51) through the conveying belt (53); The support seat (52) is fixedly connected inside the conveying channel (4), and the top surface of the support seat (52) is connected to the inner top surface of the conveying belt (53).

10. The processing technology of the high-strength and tough composite nonwoven fabric according to claim 9, characterized in that: The motor six (55) is a servo motor or a stepper motor.

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