Efficient treatment device for cation modification of polyester-nylon composite fibers

Abstract

The invention discloses an efficient treatment device for polyester-nylon composite fiber cation modification, which comprises a treatment box, a plurality of groups of rotating rollers are rotatably mounted in the treatment box, polyester-nylon composite fibers are wound outside the rotating rollers, and a constant temperature heater is fixedly mounted at the inner bottom of the treatment box. A mounting plate is fixedly connected to the interior of the treatment box, an aerator is fixedly mounted on the mounting plate, ultrasonic generators are fixedly mounted on the inner walls of the two sides of the treatment box, a controller is fixedly mounted on the front section of the treatment box, and a pretreatment assembly is arranged on one side of the treatment box; and a post-treatment assembly is arranged on the other side of the treatment box, a connecting plate is fixedly connected to the rear end of the treatment box, and a feeding assembly is arranged on the connecting plate. According to the method, the cationic modification treatment of the polyester-nylon composite fibers is efficiently carried out and the modification treatment quality is improved by heating the modification liquid stage by stage and carrying out pretreatment and post-treatment on the polyester-nylon composite fibers.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fabric production equipment, in particular to a high-efficiency treatment device for cationic modification of polyester-chiffon composite fibers. BACKGROUND

[0002] Polyester-chiffon composite fiber is a chemical fiber made of polyester (polyester fiber) and nylon (polyamide fiber) through composite spinning technology, which has unique structure and performance advantages and is widely used in many fields.

[0003] Polyester-chiffon composite fiber is made by melting two polymers of polyester and nylon through two screw extruders, passing through their respective flow channels of the composite spinning assembly, and converging at the spinneret orifice to be extruded together. This structure makes the fiber have the advantages of both polyester and nylon. To improve the dyeing performance, moisture absorption performance and other special functions of polyester-chiffon composite fiber, cationic modification is often used in production, that is, by introducing cationic groups, these groups can produce strong binding force with dye molecules, thereby significantly improving the dyeing performance of the fiber, and the introduction of cationic groups increases the hydrophilicity of the fiber surface, making the fiber better absorb and retain water. However, the existing cationic modification equipment has poor control of reaction conditions, resulting in low reaction efficiency, and the lack of pretreatment before modification leads to insufficient penetration of the modifier and unstable structure of the modified layer after reaction, reducing the modification efficiency and quality. SUMMARY

[0004] In view of the technical problems of the existing cationic modification equipment, which has poor control of reaction conditions, resulting in low reaction efficiency, and the lack of pretreatment before modification leads to insufficient penetration of the modifier and unstable structure of the modified layer after reaction, reducing the modification efficiency and quality, the present application provides a high-efficiency treatment device for cationic modification of polyester-chiffon composite fibers.

[0005] The technical solution adopted by the present application is: a treatment box is provided, a plurality of groups of rotating rollers are rotatably installed inside the treatment box, polyester-chiffon composite fibers are wound around the outside of the rotating rollers, a constant temperature heater is fixedly installed at the inner bottom of the treatment box, an installation plate is fixedly connected inside the treatment box, an aerator is fixedly installed on the installation plate, an ultrasonic generator is fixedly installed on the inner walls of both sides of the treatment box, a controller is fixedly installed at the front end of the treatment box, a pretreatment assembly is provided on one side of the treatment box, a post-treatment assembly is provided on the other side of the treatment box, a connecting plate is fixedly connected to the rear end of the treatment box, and a feeding assembly is provided on the connecting plate.

[0006] Further, the feeding assembly comprises a support rod fixedly connected to the connecting plate and a storage hopper fixedly installed on the support rod, one side of the storage hopper is fixedly installed with a feeding block, one end of the feeding block is rotatably provided with a cover plate, the feeding block is rotatably connected with a conveying rod, and the outer portion of the conveying rod is fixedly installed with a worm.

[0007] By adopting the above technical scheme, the feeding amount of the reaction raw material is ensured to be accurate.

[0008] Further, the outer portion of the storage hopper is fixedly installed with a servo motor, and the driving shaft of the servo motor is coaxially fixedly connected with the conveying rod.

[0009] By adopting the above technical scheme, driving force is provided for the worm.

[0010] Further, the cover plate is fixedly installed with a connecting rod, both ends of the connecting rod are rotatably connected with mounting blocks, the mounting blocks are fixedly installed at one end of the feeding block, the cover plate is fixedly installed with a torsional spring, and the torsional spring is sleeved on the outer portion of the connecting rod.

[0011] By adopting the above technical scheme, the cover plate can be automatically opened and closed.

[0012] Further, the inner portion of the treatment box is rotatably installed with a rotating shaft, the outer portion of the rotating shaft is fixedly connected with a first stirring blade, the outer portion of the treatment box is fixedly installed with a driving motor, and the driving shaft of the driving motor is coaxially fixedly connected with the rotating shaft.

[0013] By adopting the above technical scheme, the uniformity of the treatment liquid is ensured.

[0014] Further, the inner wall of the treatment box is fixedly installed with a mounting sleeve, the mounting sleeve is sleeved on the outer portion of the rotating shaft, the outer portion of the mounting sleeve is rotatably installed with a mounting rod, one end of the mounting rod is fixedly installed with a second stirring blade, the outer portion of the mounting rod is fixedly connected with a first bevel gear, one side of the first bevel gear is engaged with a second bevel gear, and the second bevel gear is fixedly installed on the rotating shaft.

[0015] By adopting the above technical scheme, the stirring effect on the treatment liquid is further improved.

[0016] Further, the pretreatment assembly comprises a pretreatment box fixedly installed on one side of the treatment box, a liquid conveying pipe fixedly installed on the pretreatment box, and two groups of connecting pipes fixedly connected to the liquid conveying pipe, nozzles are fixedly installed on the two groups of connecting pipes, the outer portion of the pretreatment box is fixedly connected with a liquid inlet pipe, four groups of fixed plates are fixedly installed on the pretreatment box, and two groups of guide rollers are rotatably installed between the two groups of fixed plates.

[0017] By adopting the technical scheme, the impurities on the surface of the polyester-polyamide composite fiber are removed.

[0018] Further, the post-treatment assembly comprises a post-treatment tank fixedly connected to one side of the treatment tank, two groups of cold water pipes fixedly installed on the post-treatment tank, and a warm water pipe fixedly connected to the post-treatment tank, the warm water pipe is arranged between the two groups of cold water pipes, and a spray head is fixedly connected to the lower part of each of the cold water pipes and the warm water pipe, and two groups of first water inlet pipes and one group of second water inlet pipes are fixedly connected to the outside of the post-treatment tank.

[0019] By adopting the technical scheme, the excess modifier on the polyester-polyamide composite fiber after the reaction is removed.

[0020] Further, the collection chambers are arranged on the pretreatment tank and the post-treatment tank, and a drain pipe is fixedly connected to the outside of each of the pretreatment tank and the post-treatment tank, and an electromagnetic valve is fixedly installed on the outside of the drain pipe.

[0021] By adopting the technical scheme, the waste of chemical raw materials is reduced.

[0022] Further, four groups of support plates are fixedly connected to the post-treatment tank, and two groups of pressing rollers are rotatably installed between the two groups of support plates.

[0023] By adopting the technical scheme, the polyester-polyamide composite fiber after the reaction is heat set.

[0024] The present application has the following advantages: the pretreatment tank cooperates with the liquid delivery pipe, the connecting pipe, the nozzle and the liquid inlet pipe to flush away the dust and other attached particles on the surface of the polyester-polyamide composite fiber by using pressurized sodium hydroxide solution, and simultaneously saponify and decompose the oil stains on the surface of the polyester-polyamide composite fiber, so that the impurities on the surface of the polyester-polyamide composite fiber are treated, the permeability and the reactivity of the modifier in the subsequent modification reaction are improved, and the modification reaction efficiency is improved. The storage hopper cooperates with the feeding block, the servo motor, the conveying rod, the auger blade and the cover plate to realize accurate quantitative feeding of the raw materials, guarantee the concentration of the modification solution, the driving motor cooperates with the shaft, the first stirring blade, the mounting sleeve, the mounting rod, the first bevel gear, the second bevel gear and the second stirring blade, the second stirring blade performs radial stirring on the treatment liquid in the treatment tank, cooperates with the axial stirring of the first stirring blade, improves the stirring effect of the treatment liquid, guarantees the uniformity of the treatment liquid, and thus improves the modification reaction efficiency. The treatment tank cooperates with the constant-temperature heater, the aerator and the ultrasonic generator to break the concentration gradient, promote the diffusion of substances, improve the mixing effect of the modifier and the treatment liquid, accelerate the penetration of the modifier, improve the modification reaction efficiency, and adopt stepwise temperature rise to improve the modification reaction efficiency and quality. The polyester-polyamide composite fiber is rinsed by post-treatment cooperating with cold water pipe, warm water pipe, spray head and electric heating roller, so that the unreacted modifier and residual lye on the polyester-polyamide composite fiber are thoroughly removed, the influence of the residual on the fiber performance is reduced, the residual moisture on the polyester-polyamide composite fiber is evaporated to dry the polyester-polyamide composite fiber, the modification effect is solidified, and the fiber size stability and dyeing uniformity are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the cross-sectional structure of the pretreatment box, treatment box and post-treatment box in the present application; Figure 3 is a schematic diagram of the structure of the treatment box in the present application; Figure 4 is a schematic diagram of the internal structure of the treatment box in the present application; Figure 5 is an assembly schematic diagram of the mounting sleeve and the rotating shaft in the present application; Figure 6 is a schematic diagram of the structure of the feeding assembly in the present application; Figure 7 is a schematic diagram of the structure of the storage hopper and feeding block in the present application; Figure 8 is a schematic diagram of the structure of the cover plate in the present application; Figure 9 is a schematic diagram of the structure of the pretreatment assembly in the present application; Figure 10 is a schematic diagram of the structure of the post-treatment assembly in the present application.

[0026] The labels in the figure are: 1, treatment box; 101, rotating roller; 102, constant temperature heater; 103, mounting plate; 104, aerator; 105, ultrasonic generator; 106, rotating shaft; 107, first stirring blade; 108, driving motor; 109, mounting sleeve; 110, mounting rod; 111, second stirring blade; 112, first bevel gear; 113, second bevel gear; 114, controller; 115, connecting plate; 2, pretreatment assembly; 201, pretreatment box; 202, fixed plate; 203, guide roller; 204, infusion tube; 205, connecting pipe; 206, nozzle; 207, liquid inlet pipe; 208, collection chamber; 209, liquid outlet pipe; 210, electromagnetic valve; 3, post-treatment assembly; 301, post-treatment box; 302, support plate; 303, compression roller; 304, support; 305, electric heating roller; 306, cold water pipe; 307, warm water pipe; 308, spray head; 309, first water inlet pipe; 310, second water inlet pipe; 4, polyester-polyamide composite fiber; 5, feeding assembly; 501, support rod; 502, storage hopper; 503, feeding block; 504, conveying rod; 505, auger blade; 506, servo motor; 507, cover plate; 508, mounting block; 509, connecting rod; 510, torsional spring. DETAILED DESCRIPTION

[0027] In the description of the present application, it should be noted that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] The following will be described in detail with reference to the accompanying drawings Figure 1 - the accompanying drawings Figure 10 The present application is further described.

[0030] In order to solve the problems in the background art, the technical scheme is proposed as follows: comprising a treatment box 1, a plurality of groups of rotating rollers 101 are rotatably installed inside the treatment box 1, polyester-polyamide composite fibers 4 are arranged outside the rotating rollers 101, a constant temperature heater 102 is fixedly installed at the inner bottom of the treatment box 1, a mounting plate 103 is fixedly connected inside the treatment box 1, an aerator 104 is fixedly installed on the mounting plate 103, an ultrasonic generator 105 is fixedly installed on the inner wall of both sides of the treatment box 1, a controller 114 is fixedly installed at the front end of the treatment box 1, a pretreatment assembly 2 is arranged on one side of the treatment box 1, a post-treatment assembly 3 is arranged on the other side of the treatment box 1, a connecting plate 115 is fixedly connected to the rear end of the treatment box 1, and a feeding assembly 5 is arranged on the connecting plate 115.

[0031] The polyester-polyamide composite fibers 4 pass through the guide rollers 203 on the pretreatment box 201, the plurality of groups of rotating rollers 101 in the treatment box 1, the pressure rollers 303 and the electric heating rollers 305 on the post-treatment box 301 in sequence (as shown in the attached drawings), and are finally wound on the winding roller 306. Figure 2The polyester-polyamide composite fiber 4 passing through the electrothermal roller 305 is connected with an external winding device, which pulls the polyester-polyamide composite fiber 4 to move, the surface impurities of the polyester-polyamide composite fiber 4 before modification treatment are cleaned by the pretreatment assembly 2, the permeability of the modifier of the polyester-polyamide composite fiber 4 is improved, the polyester-polyamide composite fiber 4 is subjected to efficient modification treatment in the treatment box 1, the modified polyester-polyamide composite fiber 4 is washed and heat set in the post-treatment assembly 3, so as to avoid the damage of the modified layer structure, a proper amount of water is added in the treatment box 1, a small molecule quaternary ammonium salt cation modifier (such as an epoxy quaternary ammonium salt compound) is added in the treatment box 1 through the feeding assembly 5, the polyester-polyamide composite fiber 4 treated by the pretreatment assembly 2 is transported into the treatment box 1, the small molecule quaternary ammonium salt cation modifier is fully adsorbed on the fiber and diffuses into the fiber, the treatment time is 5-10 minutes, then sodium hydroxide is added in the treatment box 1 through the feeding assembly 5, the pH value is adjusted to be alkaline (such as pH 10-11), the treatment liquid is heated to 45-55°C by the constant temperature heater 102, the reaction time is 10-15 minutes, then a high molecular quaternary ammonium salt cation modifier (such as a branched polyepoxy chloropropane dimethylamine) is added in the treatment box 1 through the feeding assembly 5, the treatment liquid is heated to 65-85°C by the constant temperature heater 102, the reaction continues until the total modification time is 65-90 minutes, so that the high molecular modifier fully reacts with the fiber, the modification quality is improved, the constant temperature heater 102 is electrically connected with the controller 114, the controller 114 controls the constant temperature heater 102, so that the heating speed of the treatment liquid is controlled to be 1-2°C / min, so as to reduce the modification reaction speed, make the modification treatment more uniform, improve the dyeing uniformity of subsequent dyeing, the reaction liquid is heated in steps by the constant temperature heater 102, compared with the traditional single temperature treatment, the modification efficiency is improved by 20%-30%, the cation density of the fiber surface is increased by 15%-20%. Through high-pressure spraying and alkali saponification, the residual oil stains and impurities on the fiber surface are effectively removed, the cleanliness and activity of the fiber surface are improved, and an ideal interface state is provided for the subsequent cation modification reaction, thereby significantly improving the penetration rate and reaction uniformity of the modifier on the polyester-polyamide composite fiber, and effectively preventing the uneven distribution of the modification effect.

[0032] The aerator 104 is connected with the external gas supply device, introduces gas into the modified treatment liquid and disperses the gas in the form of micro-bubbles, the bubbles generate vertical liquid flow when rising in the solution, forming macroscopic circulation flow, the energy released during the bubble breaking and merging process initiates local turbulence, enhances the internal momentum exchange of the solution, breaks the concentration gradient, promotes material diffusion, improves the mixing effect of the modifier and the treatment liquid, the ultrasonic wave generated by the ultrasonic wave generator 105 is transmitted in the treatment liquid, the ultrasonic wave accelerates the penetration of the modifier through the cavitation effect, mechanical effect and thermal effect of the ultrasonic wave, shortens the modification reaction time by 20%-30%, the aerator 104 adopts a jet-type aerator, the ultrasonic wave generator 105 is set to a frequency of 20-40 kHz and a power density of 0.5-1 W / cm². The ultrasonic wave generator promotes the "ultrasonic cavitation effect" on the fiber surface, effectively loosens the fiber bundle structure, and helps the modifier to penetrate deeper. Greatly shorten the time required for modification, improve process efficiency and cation modification depth, strengthen the hydrophilicity and dyeing performance of the fiber.

[0033] Further, the feeding assembly 5 includes a support rod 501 fixedly connected to the connecting plate 115 and a storage hopper 502 fixedly installed on the support rod 501. One side of the storage hopper 502 is fixedly installed with a feeding block 503. One end of the feeding block 503 is rotatably provided with a cover plate 507. The feeding block 503 is rotatably connected with a conveying rod 504. The outer portion of the conveying rod 504 is fixedly installed with a screw flight 505.

[0034] The four groups of support rods 501 are respectively placed with small-molecule quaternary ammonium salt cation modifier, sodium hydroxide, high-molecular quaternary ammonium salt cation modifier and dihydrogen sodium citrate. The feeding block 503 is in communication with the interior of the storage hopper 502. One end of the feeding block 503 is provided with an opening and the opening is located above the treatment box 1. The raw materials in the storage hopper 502 fall into the feeding block 503. The screw flight 505 is driven to rotate by the conveying rod 504. The screw flight 505 slowly pushes the raw materials out of the feeding block 503 and falls into the treatment box 1 through the opening. The cover plate 507 can be automatically opened and closed. When the cover plate 507 is closed, the opening of the feeding block 503 can be plugged. In the initial stage of the modification reaction, sodium hydroxide is fed into the treatment box 1 through the feeding assembly 5 to adjust the ph of the treatment liquid to 10-11, promote the ion exchange between the modifier and the fiber. In the later stage of the modification reaction, dihydrogen sodium citrate is fed into the treatment box 1 through the feeding assembly 5 to adjust the ph of the treatment liquid to 8-9, reduce the damage of alkalinity to the fiber, and improve the modification uniformity. The treatment box 1 is installed with a ph on-line measuring instrument (not shown in the drawing). The ph on-line measuring instrument is electrically connected with the controller 114, which facilitates the control of the alkalinity of the treatment liquid and improves the modification reaction efficiency. The controller 114 adopts a programmable PC controller.

[0035] Further, the outside of the storage hopper 502 is fixedly provided with a servo motor 506, and a driving shaft of the servo motor 506 is coaxially and fixedly connected with the conveying rod 504.

[0036] The servo motor 506 provides power for the rotation of the conveying rod 504, and the conveying rod 504 drives the auger blade 505 to rotate by the rotation of the servo motor 506. The servo motor 506 is electrically connected with the controller 114, and the rotation speed and start-stop of the auger blade 505 are controlled by the controller 114. The controller 114 is provided with the feeding amount of each raw material, so as to realize the accurate quantitative feeding of the raw material and ensure the quality of fiber modification. In some specific embodiments, the controller 114 is a programmable PC controller, and the rotation speed and start-stop of the servo motor 506 on the four groups of storage hoppers 502 are set by programming. In use, the rotation of the auger blade is controlled by the servo motor, and the servo motor is controlled by the controller. For example, the controller controls the rotation times and start-stop time of the servo motor by pre-setting the raw material feeding amount on the controller, so that the servo motor further limits the rotation number and time of the auger blade. The amount of raw material fed by the auger blade in one rotation is fixed, and the accurate quantitative feeding of the raw material is realized by controlling the rotation number of the auger blade. The feeding assembly adopts automatic metering and directional adding mode, and the amount of modifier and additive can be accurately controlled according to the process requirements, so as to avoid excessive feeding, waste and side reactions caused by excessive local concentration. The design not only improves the efficiency and repeatability of the modification reaction, but also helps to reduce production cost, save energy and reduce consumption.

[0037] Further, the cover plate 507 is fixedly provided with a connecting rod 509, both ends of the connecting rod 509 are rotatably connected with mounting blocks 508, and the mounting blocks 508 are fixedly installed at one end of the feeding block 503. The cover plate 507 is fixedly provided with a torsional spring 510, and the torsional spring 510 is sleeved outside the connecting rod 509.

[0038] Both ends of the torsional spring 510 are fixedly connected with the cover plate 507 and the mounting block 508. In the feeding process of the feeding assembly 5, the rotation of the auger blade 505 pushes the raw material in the feeding block 503 out, the raw material extrudes the cover plate 507 to make it rotate, the cover plate 507 drives the connecting rod 509 to rotate to make the torsional spring 510 twist, and the rotation of the cover plate 507 opens the opening at one end of the feeding block 503, so that the raw material falls into the treatment box 1 below. After the feeding is completed, the cover plate 507 loses the pushing force of the raw material, the twisted torsional spring 510 drives the cover plate 507 to rotate reversely to restore to the initial state, so that the cover plate 507 re-closes the opening of the feeding block 503 to avoid the raw material in the feeding block 503 from falling off, and the automatic opening and closing of the cover plate 507 is realized, thereby improving the practicability of the device.

[0039] Further explanation is that the inside of the processing box 1 is rotatably installed with a rotating shaft 106, the outer part of the rotating shaft 106 is fixedly connected with a first stirring blade 107, the outside of the processing box 1 is fixedly installed with a driving motor 108, and the driving shaft of the driving motor 108 is coaxially fixedly connected with the rotating shaft 106.

[0040] The driving motor 108 drives the rotating shaft 106 to rotate, the rotating shaft 106 drives the first stirring blade 107 to rotate, and the first stirring blade 107 axially stirs the processing liquid in the processing box 1, avoids that the local concentration of the processing liquid is too high, ensures that the modifier fully contacts with the fiber, and improves the modification reaction efficiency.

[0041] Further explanation is that the inner wall of the processing box 1 is fixedly installed with a mounting sleeve 109, the mounting sleeve 109 is sleeved on the outside of the rotating shaft 106, the outside of the mounting sleeve 109 is rotatably installed with a mounting rod 110, one end of the mounting rod 110 is fixedly installed with a second stirring blade 111, the outside of the mounting rod 110 is fixedly connected with a first bevel gear 112, one side of the first bevel gear 112 is engaged with a second bevel gear 113, and the second bevel gear 113 is fixedly installed on the rotating shaft 106. At the same time, the processing box body realizes the continuous winding and soaking of the polyester-polyamide composite fiber. In cooperation with multiple groups of rotating rollers, the uniform distribution and sufficient contact of the fiber in the modification liquid are ensured, the fiber modification is uniform and consistent, and the stacking and knotting phenomenon is effectively avoided.

[0042] The mounting sleeve 109 is rotatably connected with the rotating shaft 106, the mounting sleeve 109 provides mounting conditions for the mounting rod 110, the rotating shaft 106 drives the second bevel gear 113 to rotate while driving the first stirring blade 107 to rotate, the second bevel gear 113 drives the mounting rod 110 to rotate through the first bevel gear 112, the mounting rod 110 drives the second stirring blade 111 to rotate, the second stirring blade 111 radially stirs the processing liquid in the processing box 1, cooperates with the axial stirring of the first stirring blade 107, further improves the stirring effect of the processing liquid, and guarantees the uniformity of the processing liquid, thereby further improving the modification reaction efficiency.

[0043] Further explanation is that the pretreatment assembly 2 comprises a pretreatment box 201 fixedly installed on one side of the processing box 1, a liquid conveying pipe 204 fixedly installed on the pretreatment box 201, and two groups of connecting pipes 205 fixedly connected with the liquid conveying pipe 204, two groups of nozzles 206 are fixedly installed on the two groups of connecting pipes 205, the outside of the pretreatment box 201 is fixedly connected with a liquid inlet pipe 207, four groups of fixed plates 202 are fixedly installed on the pretreatment box 201, and two groups of guide rollers 203 are rotatably installed between two groups of opposite fixed plates 202.

[0044] The pretreatment assembly 2 is arranged at the front of the treatment box 1 for modifying the polyester-polyamide composite fiber 4, and the polyester-polyamide composite fiber 4 is treated by the pretreatment assembly 2 and then enters the treatment box 1. The nozzle 206 is arranged between the two adjacent groups of fixed plates 202, and the liquid inlet pipe 207 is connected with an external liquid supply device. The liquid supply device delivers the pressurized sodium hydroxide solution into the liquid inlet pipe 207, and the liquid inlet pipe 207 delivers the sodium hydroxide solution into the connecting pipe 205 through the liquid delivery pipe 204 and then sprays the sodium hydroxide solution out of the nozzle 206. An angle is formed between the nozzle 206 and the polyester-polyamide composite fiber 4, so that the sodium hydroxide solution is sprayed to the polyester-polyamide composite fiber 4 at a certain angle. The sodium hydroxide solution washes away the dust and other attached particles on the surface of the polyester-polyamide composite fiber 4, simultaneously saponifies and decomposes the oil stains on the surface of the polyester-polyamide composite fiber 4, and processes the impurities on the surface of the polyester-polyamide composite fiber 4, thereby improving the permeability and reactivity of the modifier in the subsequent modification reaction, and being beneficial to improving the modification reaction efficiency. The pressure of the sodium hydroxide solution is 2-5 MPa, so as to avoid damaging the polyester-polyamide composite fiber 4.

[0045] Further, the post-treatment assembly 3 comprises a post-treatment box 301 fixedly connected to one side of the treatment box 1, two groups of cold water pipes 306 fixedly installed on the post-treatment box 301, and a warm water pipe 307 fixedly connected to the post-treatment box 301. The warm water pipe 307 is arranged between the two groups of cold water pipes 306. The cold water pipes 306 and the warm water pipe 307 are each fixedly connected with a spray head 308. The post-treatment box 301 is externally fixedly connected with two groups of first water inlet pipes 309 and one group of second water inlet pipes 310.

[0046] The first water inlet pipes 309 are in communication with the cold water pipes 306, and the second water inlet pipes 310 are in communication with the warm water pipe 307. The two groups of first water inlet pipes 309 and the one group of second water inlet pipes 310 are each connected with an external water supply device. The water supply device delivers cold water into the first water inlet pipes 309 and delivers warm water into the second water inlet pipes 310. The polyester-polyamide composite fiber 4 modified by the treatment box 1 is delivered to the post-treatment assembly 3 and sequentially passes through the first water inlet pipes 309, the second water inlet pipes 310, and the first water inlet pipes 309 below. The spray heads 308 sequentially wash the polyester-polyamide composite fiber 4 with cold water, warm water, and cold water, thereby completely removing the unreacted modifier and residual alkali liquor on the polyester-polyamide composite fiber 4, reducing the influence of the residual on the performance of the fiber, and being beneficial to improving the quality of the modified polyester-polyamide composite fiber 4. The post-treatment assembly can quickly and completely remove residual chemicals and solidify the modified layer through segmented cold and warm water washing and low-temperature heat setting. This not only guarantees the dimensional stability and washing resistance of the final fiber, but also helps to avoid environmental pollution and improve quality and safety performance.

[0047] Further, the pretreatment box 201 and the post-treatment box 301 are each provided with a collection chamber 208, and the pretreatment box 201 and the post-treatment box 301 are each externally fixedly connected with a liquid discharge pipe 209. The liquid discharge pipe 209 is externally fixedly installed with an electromagnetic valve 210.

[0048] The sodium hydroxide solution after washing the polyester-polyamide composite fiber 4 of the pretreatment box 201 and the water containing the modifier and the lye after washing the polyester-polyamide composite fiber 4 of the post-treatment box 301 fall into the collection chamber 208, the collection chamber 208 collects them, the waste liquid in the collection chamber 208 is collected through the liquid discharge pipe 209 for subsequent treatment, the recovery of the modifier and the lye is realized, and the wastewater discharge is reduced.

[0049] Further, the post-treatment box 301 is fixedly connected with four groups of support plates 302, two groups of pressure rollers 303 are rotatably installed between the two groups of opposite support plates 302, two groups of brackets 304 are fixedly installed on the post-treatment box 301, and two groups of electric heating rollers 305 are rotatably connected between the two groups of brackets 304. In the post-treatment link of the polyester-polyamide composite fiber cation modification, the fiber is easy to deviate, the tension is uneven, and the drying is not complete. Through the cooperation of the multiple groups of support plates, pressure rollers and electric heating rollers arranged on the post-treatment box, the fiber running is effectively guided and stabilized, the problems such as deviation, knotting or uneven tension of the fiber in the washing and heat setting process are prevented, and the fiber is ensured to be flat and consistent. The electric heating roller adopts a low-temperature uniform heating mode to perform efficient heat setting and drying treatment on the fiber, which can quickly evaporate residual moisture to realize efficient drying, solidify the structure of the modified layer, improve the dimensional stability and dyeing uniformity of the fiber, avoid fiber damage and performance decline caused by high temperature or uneven heating, improve the automation and continuous level of the post-treatment link, and enhance the appearance quality and subsequent processing adaptability of the product.

[0050] The polyester-polyamide composite fiber 4 sequentially passes through the two groups of electric heating rollers 305. The electric heating roller 305 generates heat when working, evaporates the residual moisture on the polyester-polyamide composite fiber 4 to dry it, solidifies the modification effect, improves the dimensional stability and dyeing uniformity of the fiber, and the temperature of the electric heating roller 305 is set to 60-80°C to realize low-temperature drying and avoid fiber damage.

[0051] With reference to the following operation: polyester-polyamide composite fiber 4 passes through guide roller 203 on pretreatment box 201, a plurality of groups of rotating rollers 101 in treatment box 1, pressing roller 303 and electric heating roller 305 on post-treatment box 301 in sequence, first, the nozzle 206 of the pretreatment assembly 2 sprays pressurized sodium hydroxide solution to clean the impurities on the surface of the polyester-polyamide composite fiber 4, the cleaned polyester-polyamide composite fiber 4 is transported to the treatment box 1, the servo motor 506 drives the conveying rod 504 to rotate, the conveying rod 504 drives the auger blade 505 to rotate, the raw materials in the storage hopper 502 are put into the treatment box 1, a group of small molecule quaternary ammonium salt cationic modifier in the storage hopper 502 is added to the treatment box 1, the small molecule quaternary ammonium salt cationic modifier is fully adsorbed on the fiber and diffuses into the fiber, the treatment time is 5-10 minutes, sodium hydroxide in a group of storage hoppers 502 is added to the treatment box 1, the pH value is adjusted to alkaline (such as pH 10-11), the constant temperature heater 102 warms the treatment liquid to 45-55 DEG C, the reaction time is 10-15 minutes, then the high molecular quaternary ammonium salt cationic modifier in a group of storage hoppers 502 is added to the treatment box 1, the constant temperature heater 102 warms the treatment liquid to 65-85 DEG C, and the reaction continues until the total modification time is 65-90 minutes, so that the high molecular modifier and the fiber fully react, the modification quality is improved, the constant temperature heater 102 is electrically connected with the controller 114, the controller 114 controls the constant temperature heater 102, so that the warming speed of the treatment liquid is controlled at 1-2 DEG C / min, so as to reduce the modification reaction speed and make the modification treatment more uniform, the polyester-polyamide composite fiber 4 modified by the treatment box 1 is transported to the post-treatment assembly 3, and then passes through the first water inlet pipe 309, the second water inlet pipe 310 and the first water inlet pipe 309 below in sequence, and the spray head 308 sequentially flushes the polyester-polyamide composite fiber 4 with cold water, warm water and cold water, completely removes the unreacted modifier and residual alkali liquor on the polyester-polyamide composite fiber 4, reduces the influence of the residual on the performance of the fiber, the electric heating roller 305 generates heat when working, evaporates the residual moisture on the polyester-polyamide composite fiber 4 to dry it, solidifies the modification effect, and improves the fiber size stability and dyeing uniformity. The constant temperature heater further realizes the staged warming of the modification liquid, ensures that the reaction system temperature is accurately controllable, thereby optimizing the introduction reaction conditions of the cationic group. Stable temperature control greatly improves the modification efficiency and product consistency.

[0052] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art. Details are not described herein. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0053] While embodiments of the application have been shown and described, it is to be understood that the scope of the present application is not to be limited by the above description but only by the scope of the appended claims and their equivalents.

Claims

1. A high-efficiency treatment device for cationic modification of polyester-nylon composite fibers, comprising a treatment box (1), a pretreatment component (2), a post-treatment component (3), and a feeding component (5); characterized in that: Several groups of rotating rollers (101) are rotatably mounted inside the treatment box (1), and polyester-nylon composite fibers (4) are wound around the outside of the rotating rollers (101). A constant temperature heater (102) is fixedly mounted on the inner bottom of the treatment box (1). A mounting plate (103) is fixedly connected to the inside of the treatment box (1), and an aerator (104) is fixedly mounted on the mounting plate (103). Ultrasonic generators (105) are fixedly mounted on the inner walls of both sides of the treatment box (1), and a controller (114) is fixedly mounted on the front section of the treatment box (1). A pre-processing assembly (2) is provided on one side of the processing box (1), a post-processing assembly (3) is provided on the other side of the processing box (1), and a connecting plate (115) is fixedly connected to the rear end of the processing box (1), and a feeding assembly (5) is provided on the connecting plate (115).

2. The high-efficiency treatment device for cationic modification of polyester-nylon composite fibers according to claim 1, characterized in that: The feeding assembly (5) comprises a support rod (501) fixedly connected to the connecting plate (115) and a storage hopper (502) fixedly mounted on the support rod (501); a feeding block (503) is fixedly mounted on one side of the storage hopper (502); a cover plate (507) is rotatably mounted on one end of the feeding block (503); a conveying rod (504) is rotatably connected to the feeding block (503); and an auger blade (505) is fixedly mounted on the outside of the conveying rod (504).

3. The high-efficiency treatment device for cationic modification of polyester-nylon composite fibers according to claim 2, characterized in that: A servo motor (506) is fixedly mounted on the outside of the storage hopper (502), and a drive shaft of the servo motor (506) is coaxially fixedly connected to the conveying rod (504).

4. The high-efficiency treatment device for cationic modification of polyester-nylon composite fibers according to claim 3, characterized in that: A connecting rod (509) is fixedly mounted on the cover plate (507), and both ends of the connecting rod (509) are rotatably connected to mounting blocks (508). The mounting block (508) is fixedly mounted on one end of the feeding block (503). A torsion spring (510) is fixedly mounted on the cover plate (507), and the torsion spring (510) is sleeved on the outside of the connecting rod (509).

5. The high-efficiency treatment device for cationic modification of polyester-nylon composite fibers according to claim 1, characterized in that: A rotating shaft (106) is rotatably mounted inside the processing box (1), a first stirring blade (107) is fixedly connected to the outside of the rotating shaft (106), a driving motor (108) is fixedly mounted to the outside of the processing box (1), and a driving shaft of the driving motor (108) is coaxially fixedly connected to the rotating shaft (106).

6. The high-efficiency treatment device for cationic modification of polyester-nylon composite fibers according to claim 5, characterized in that: A mounting sleeve (109) is fixedly mounted on the inner wall of the processing box (1), and the mounting sleeve (109) is sleeved on the outside of the rotating shaft (106). A mounting rod (110) is rotatably mounted on the outside of the mounting sleeve (109), and a second stirring blade (111) is fixedly mounted on one end of the mounting rod (110). A first bevel gear (112) is fixedly connected to the outside of the mounting rod (110), and a second bevel gear (113) is meshed with one side of the first bevel gear (112). The second bevel gear (113) is fixedly mounted on the rotating shaft (106).

7. A high-efficiency treatment device for cationic modification of polyester-nylon composite fibers according to claim 1, wherein the pretreatment component (2) comprises a pretreatment box (201) fixedly mounted on one side of the treatment box (1), a liquid infusion tube (204) fixedly mounted on the pretreatment box (201), and two groups of connecting tubes (205) fixedly connected to the liquid infusion tube (204), both groups of connecting tubes (205) are fixedly mounted with nozzles (206), the outside of the pretreatment box (201) is fixedly connected with a liquid inlet tube (207), four groups of fixed plates (202) are fixedly mounted on the pretreatment box (201), and two groups of guide rollers (203) are rotatably mounted between two groups relative to the fixed plates (202).

8. A high-efficiency treatment device for cationic modification of polyester-nylon composite fibers according to claim 1, wherein the post-treatment component (3) comprises a post-treatment box (301) fixedly connected to one side of the treatment box (1), two groups of cold water pipes (306) fixedly installed on the post-treatment box (301), and a warm water pipe (307) fixedly connected to the post-treatment box (301), wherein the warm water pipe (307) is arranged between the two groups of cold water pipes (306), and nozzles (308) are fixedly connected to the bottom of the cold water pipe (306) and the warm water pipe (307), and two groups of first water inlet pipes (309) and one group of second water inlet pipes (310) are fixedly connected to the outside of the post-treatment box (301).

9. According to the high-efficiency treatment device for cationic modification of polyester-nylon composite fibers as claimed in claim 7, a collection chamber (208) is provided on the pretreatment box (201) and the post-treatment box (301), and a drainage pipe (209) is fixedly connected to the outside of the pretreatment box (201) and the post-treatment box (301), and a solenoid valve (210) is fixedly installed on the outside of the drainage pipe (209).

10. According to the high-efficiency treatment device for cationic modification of polyester-nylon composite fibers as claimed in claim 8, four groups of support plates (302) are fixedly connected to the post-treatment box (301), and two groups of pressure rollers (303) are rotatably installed between two groups of support plates (302).

Images