WO2023087649A1 - Tension heat-setting treatment device and high-modulus chinlon 66 industrial filament production method - Google Patents

Tension heat-setting treatment device and high-modulus chinlon 66 industrial filament production method Download PDF

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WO2023087649A1
WO2023087649A1 PCT/CN2022/094661 CN2022094661W WO2023087649A1 WO 2023087649 A1 WO2023087649 A1 WO 2023087649A1 CN 2022094661 W CN2022094661 W CN 2022094661W WO 2023087649 A1 WO2023087649 A1 WO 2023087649A1
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Prior art keywords
heating box
nylon
tension
industrial
industrial filament
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PCT/CN2022/094661
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French (fr)
Chinese (zh)
Inventor
仵晓
李新
杨洪林
刘晓光
杜建国
范新川
吴齐
李改真
吴晓明
张会云
张明
姚瑞芬
赵金辉
赵晓杰
李园园
王晓川
熊世杰
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平顶山神马帘子布发展有限公司
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Publication of WO2023087649A1 publication Critical patent/WO2023087649A1/en

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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224—Selection or control of the temperature during stretching
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Definitions

  • the invention belongs to the technical field of chemical fiber industrial filament production, and in particular relates to a tension heat setting treatment device and a production method of high modulus nylon 66 industrial filament.
  • the preparation process of the existing nylon 66 industrial filament is as follows: the molten polyamide is extruded from the screw, and forms a thin stream of melt after passing through the spinning assembly and the spinneret, and forms the primary fiber 07 after cooling and solidifying. The fiber is stretched, shaped and deformed by the drafting equipment to form nylon 66 industrial filament.
  • the schematic diagram of the production process of the existing nylon 66 industrial filament is shown in Figure 1.
  • nylon 66 industrial filament In the production of nylon 66 industrial filament, the primary fiber passes through the pre-tensioning roller 01, the first pair of drafting rollers 02, the second pair of drafting rollers 03, the third pair of drafting rollers 04 and the fourth pair of drafting rollers 05 Enter the winding machine through the wire guide 06 to form a wire package.
  • Nylon 66 industrial filaments need to be stretched twice before forming a filament drum, the first stretching is carried out between the first drafting roller and the second drafting roller, and the The second drawing is carried out between the rollers, the first drawing ratio is 2.5-3.3, the total drawing ratio is 4.5-6.0, and the winding speed is 2300m/min-3800m/min.
  • the physical properties of the nylon 66 industrial filament produced by the above-mentioned device and process are as follows, taking the 1400dtex industrial filament as an example: the constant elongation load of 2% is 9.7N ⁇ 10.3N (that is, the modulus is between 3.90GPa ⁇ 4.14GPa ); 4% constant elongation load is 15.4N ⁇ 16.5N; 8% constant elongation load is 35.3N ⁇ 37.5N; 12% constant elongation load is 71.3N ⁇ 76.8N; strength is about 8.5cN/dtex; elongation at break Between 16% and 22%; constant load elongation between 10.5% and 13.5%; dry heat shrinkage between 4.5% and 7.7%.
  • the invention provides a tension heat-setting treatment device and a production method of high-modulus nylon 66 industrial filaments on the technical basis of the existing nylon 66 industrial filaments.
  • the invention improves the modulus of the nylon 66 industrial filament by adopting a tension heat-setting treatment device to perform tension heat-setting treatment on the wound nylon 66 industrial filament.
  • the nylon 66 industrial filament is improved by adjusting the residence time of the nylon 66 industrial filament in the draft heating box of the tension heat setting device, the temperature of the draft heating box, and the tension applied to the nylon 66 industrial filament.
  • the modulus of the filament is improved by adjusting the residence time of the nylon 66 industrial filament in the draft heating box of the tension heat setting device, the temperature of the draft heating box, and the tension applied to the nylon 66 industrial filament.
  • the tension heat setting treatment device for the production of high modulus nylon 66 industrial filaments includes a pay-off roller, a draft heating box, a tension control mechanism and a take-up roller arranged in sequence, and a guide wheel set is arranged in the draft heating box , the guide wheel set includes more than one first wire guide, and the number of the first wire guides is determined according to the number of times the filament needs to be turned back in the drafting heating box.
  • the tension control mechanism includes more than two tension rollers, and the tension control mechanism adjusts the tension of nylon 66 industrial filaments through the speed difference of the tension rollers.
  • the power of the production device for the high modulus nylon 66 industrial filament is provided by a motor.
  • the second wire guide can be set behind the pay-off roller.
  • a second wire guide can also be arranged before the take-up roller.
  • the number of the above-mentioned drawing heating boxes is more than one set, and the number of tension control mechanisms is also more than one set, and each drawing heating box is equipped with a tension control mechanism.
  • the number of drawing heating boxes and the number of tension control mechanisms can be set to 4, and the drawing heating boxes include a first drawing heating box, a second drawing heating box, a third drawing heating box, and a third drawing heating box arranged in sequence.
  • the heating box and the fourth drawing heating box, the first tension control mechanism is arranged behind the first drawing heating box, the second tension control mechanism is arranged behind the second drawing heating box, and the third tension control mechanism is arranged behind the third drawing heating box.
  • Three tension control mechanisms, the fourth tension control mechanism is arranged behind the fourth drafting heating box.
  • Adopt above-mentioned tense heat setting treatment device to carry out the production method of high modulus nylon 66 industrial filament comprise the following steps:
  • Nylon 66 industrial filaments pass through the draft heating box and the tension control mechanism in sequence.
  • the temperature in the drawing heating box, the threading time (that is, the residence time of nylon 66 industrial filaments in the drawing heating box) and tension adjustment can be set separately according to the product performance requirements
  • the tension and other conditions imposed by the mechanism on the nylon 66 industrial filaments are used to achieve the goal of improving the modulus of the nylon 66 industrial filaments.
  • the temperature setting range in the drawing heating box is 145-220°C; the tension applied by the tension control mechanism to the nylon 66 industrial filament is set at 0-33N.
  • the nylon 66 industrial filament is turned back in the draft heating box by using the guide wheel set, and the number of turns is more than 1 time.
  • the length of the drawing heating box is 85cm
  • the routing time of the nylon 66 industrial filament in the drawing heating box is set to 20-50s.
  • the number of turns of the nylon 66 industrial filament in the drawing heating box Set it to 4 to 10 times, and set the line speed of nylon 66 industrial filament to 20m/min.
  • the residence time of nylon 66 industrial filaments in the drawing heating box can be guaranteed by the set wire speed and the number of turns of each thread in the drawing heating box.
  • the thickness and grade of the filament, the running speed and the number of turns of the nylon 66 industrial filament can be set to ensure the residence time of the nylon 66 industrial filament in the drawing heating box. In order to meet the performance requirements of the final product.
  • Nylon 66 industrial filaments are packaged after tension heat setting treatment by means of a drafting heating box and a tension control mechanism.
  • the modulus of nylon 66 industrial filament will be improved to a certain extent after intense heat setting treatment.
  • the number of drafting heating boxes and the number of tension control mechanisms are 4, if the fineness of nylon 66 industrial filaments is 1413dtex, the line speed of nylon 66 industrial filaments is set to 20m/min, and in the drawing heating box The number of times of turning back is set to 4-10 times, the running time is set to 20-50s, and the tension is set to 10-33N; the temperature of the first drawing heating box is set to 145-160°C; the temperature of the second drawing heating box The temperature is set at 160-200°C; the temperature of the third drawing heating box is set at 190-220°C; the temperature of the fourth drawing heating box is set at 170-190°C.
  • the routing speed of nylon 66 industrial filament is set to 20m/min, the number of turns in the draft heating box is set to 4 to 10 times, and the routing time is set to 20 ⁇ 50s, the tension is set at 6 ⁇ 19N; the temperature of the first drawing heating box is set at 145 ⁇ 160°C; the temperature of the second drawing heating box is set at 160 ⁇ 200°C; the temperature of the third drawing heating box The temperature is set at 190-220°C; the temperature of the fourth drawing heating box is set at 170-190°C.
  • the present invention adopts tension heat setting processing device to carry out tension heat setting treatment on nylon 66 industrial filament, and further improves the nylon 66 industrial filament by controlling the heat setting time, temperature and tension of nylon 66 industrial filament. modulus.
  • the nylon 66 industrial filament produced by the present invention has a higher modulus than the product produced by the conventional process, and the 2% constant elongation load of 1400dtex grade (1413dtex) industrial yarn can reach 11.5N ⁇ 15.4N, and the 4% constant elongation load can reach 11.5N ⁇ 15.4N. It can reach 19.3N ⁇ 25.2N, the 8% constant elongation load can reach 45.6N ⁇ 65.6N, and the 12% constant elongation load can reach 90.4N ⁇ 115.7N. That is, the modulus of the nylon 66 industrial filament produced by the present invention is significantly improved compared with conventional production methods.
  • Fig. 1 is a schematic diagram of the existing nylon 66 industrial filament production process.
  • Fig. 2 is a schematic structural view of the tension heat setting treatment device of the present invention.
  • Fig. 3 is a schematic structural view of the guide wheel set in the tension heat setting treatment device of the present invention.
  • 01 is the pre-tensioning roller
  • 02 is the first pair of drafting rollers
  • 03 is the second pair of drafting rollers
  • 04 is the third pair of drafting rollers
  • 05 is the fourth pair of drafting rollers
  • 06 is the guide Silk device
  • 07 is the primary fiber
  • 1 is the pay-off roller
  • 2 is the drawing heating box
  • 21 is the first drawing heating box
  • 22 is the second drawing heating box
  • 23 is the third drawing heating box
  • 24 is The fourth drawing heating box
  • 25 is the guide wheel group
  • 26 is the first wire guide
  • 3 is the tension control mechanism
  • 31 is the first tension control mechanism
  • 32 is the second tension control mechanism
  • 33 is the third tension control mechanism
  • 34 is the fourth tension control mechanism
  • 35 is a tension roller
  • 4 is a second wire guide
  • 5 is a take-up roller
  • 6 is a nylon 66 industrial filament.
  • this example uses 2%, 4%, 8%, and 12% constant elongation load to measure the modulus level of nylon 66 industrial yarn.
  • the first wire guide in the present embodiment, the second wire guide and the wire guide used in the existing nylon 66 industrial filament production process all play the role of wires, and are all existing parts.
  • the three can are parts having the same structure.
  • the tension heat setting treatment device for the production of high modulus nylon 66 industrial filaments includes a pay-off roller 1, a draft heating box 2, a tension control mechanism 3 and a take-up roller 5 arranged in sequence, and the draft heating box 2 is two Each end is provided with guide wheel set 25 respectively, and described guide wheel set 25 comprises more than one first wire guide 26, and the number of first wire guide 26 needs to turn back the number of times that nylon 66 industrial long filament 6 is in draft heating box 2 depends.
  • the tension control mechanism 3 includes more than two tension rollers 35. In this embodiment, the tension control mechanism 3 includes two tension rollers 35. The tension control mechanism 3 adjusts the tension of the filaments through the speed difference of the tension rollers 35.
  • the power of the tension heat setting treatment device for the production of the high modulus nylon 66 industrial filament 6 is provided by a motor.
  • the number of drawing heating boxes 2 and the number of tension control mechanisms 3 are set to 4, and the drawing heating box 2 includes a first drawing heating box 21, a second drawing heating box 22, and a third drawing heating box arranged in sequence.
  • the draft heating box 23, the fourth draft heating box 24, the first tension control mechanism 31 is arranged behind the first draft heating box 21, the second tension control mechanism 32 is arranged behind the second draft heating box 22, and the third A third tension control mechanism 33 is arranged behind the draft heating box 23 , and a fourth tension control mechanism 34 is arranged behind the fourth draft heating box 24 .
  • the length inside the draft heating box 2 is 85 cm.
  • nylon 66 industrial filament 6 After using the conventional spinning process to form nylon 66 industrial filament 6, the nylon 66 industrial filament 6 is processed by the above-mentioned tension heat setting treatment device, by setting the temperature in the drawing heating box 2, heating in the drawing The modulus of the nylon 66 industrial filament 6 is improved by the residence time in the casing 2 and the tension applied to the nylon 66 industrial filament 6 .
  • Adopt above-mentioned tense heat setting treatment device to carry out the production method of high modulus nylon 66 industrial filament comprise the following steps:
  • Nylon 66 industrial filament 6 passes through the drawing heating box 2 and the tension control mechanism 3 successively.
  • the threading time is 20-50s.
  • the turn-back times of nylon 66 industrial filaments in the draft heating box are set to 4-10 times, and the threading speed of nylon 66 industrial filaments is set to 20m/min.
  • Nylon 66 industrial filament 6 passes through the second wire guide 4 after the tension heat setting treatment of the draft heating box 2 and the tension adjustment mechanism 3 and then is packaged.
  • the modulus of nylon 66 industrial filament 6 will increase to a certain extent after tension heat setting treatment.
  • Embodiments 1 to 4 when the fineness of nylon 66 industrial filaments was 1413dtex, the line speed of nylon 66 industrial filaments was set to 20m/min, and the number of turns in each drawing heating box was set to 4 ⁇ 10 times, the threading time is set to 20-50s, the tension is set to 10-33N; the temperature of the first drawing heating box is set to 145-160°C; the temperature of the second drawing heating box is set to 160-200°C ; The temperature of the third drawing heating box is set at 190-220°C; the temperature of the fourth drawing heating box is set at 170-190°C.
  • Table 1 The parameter settings of each embodiment are shown in Table 1.
  • the 2% constant elongation load of 1413dtex nylon 66 industrial filament is 11.5-15.4N
  • the 4% constant elongation load is 19.3-25.2N
  • the 8% constant elongation load is 45.6N-65.6N
  • 12% constant elongation load is 90.4N ⁇ 115.7N.
  • the fineness of nylon 66 industrial filaments is 938dtex
  • the line speed of nylon 66 industrial filaments is set to 20m/min
  • the number of turns in each drawing heating box is set to 4 to 10 times ,
  • the line time is set to 20-50s
  • the tension is set to 6-19N
  • the temperature of the first drawing heating box is set to 145-160°C
  • the temperature of the second drawing heating box is set to 160-200°C
  • the temperature of the third drawing heating box is set at 190-220°C
  • the temperature of the fourth drawing heating box is set at 170-190°C.
  • Table 1 The parameter settings of each embodiment are shown in Table 1.
  • the 2% constant elongation load of 938dtex nylon 66 industrial filament is 7.8-10.5N
  • the 4% constant elongation load is 13.4-17.3N
  • the 8% constant elongation load is 30.9N-44.3N
  • 12% constant elongation load is 60.3N ⁇ 78.1N.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)

Abstract

A tension heat-setting treatment device and a high-modulus chinlon 66 industrial filament production method. The device comprises a pay-off roller (1), a drafting heating box (2), a tension control mechanism (3), and a winding roller (5) which are arranged in sequence; two guide wheel sets (25) are respectively provided at two ends of the drafting heating box (2); each guide wheel set (25) comprises one or more first thread guides (26); the tension control mechanism (3) comprises two or more tension rollers (35); and the tension control mechanism (3) adjusts the tension of filaments by means of the speed difference of the tension rollers (35). The high-modulus chinlon 66 industrial filament production method comprises the following steps: feeding a packaged chinlon 66 industrial filament bobbin onto a pay-off roller (1); enabling chinlon 66 industrial filaments to sequentially pass through a drafting heating box (2) and a tension control mechanism (3) to be subjected to tension heat-setting treatment; and packaging. According to the method, the modulus of the chinlon 66 industrial filaments is improved by adjusting the retention time of the chinlon 66 industrial filaments in the drafting heating box (2), the temperature of the drafting heating box (2), and the tension applied to the filaments.

Description

一种紧张热定型处理装置及高模量锦纶66工业用长丝生产方法A tension heat setting treatment device and a production method of high modulus nylon 66 industrial filament 技术领域technical field
本发明属于化纤工业长丝生产技术领域，特别是涉及一种紧张热定型处理装置及高模量锦纶66工业用长丝生产方法。The invention belongs to the technical field of chemical fiber industrial filament production, and in particular relates to a tension heat setting treatment device and a production method of high modulus nylon 66 industrial filament.
背景技术Background technique
现有锦纶66工业用长丝的生产方法有两种：一种是连续聚合直接纺丝；另外一种是切片熔融纺丝。无论是连续聚合直接纺丝还是切片熔融纺丝熔体均需经过纺丝组件形成锦纶66工业用长丝，纺丝粘度(甲酸相对粘度)在69～80之间。现有的锦纶66工业用长丝的制备过程如下：熔融的聚酰胺从螺杆挤出，经纺丝组件、纺口喷丝板后形成熔体细流，经冷却固化后形成初生纤维07，初生纤维再经牵伸设备进行拉伸、定型、变形后形成锦纶66工业用长丝。现有锦纶66工业用长丝生产流程简图见图1。There are two production methods of existing nylon 66 industrial filaments: one is continuous polymerization and direct spinning; the other is chip melt spinning. Regardless of whether it is continuous polymerization direct spinning or sliced melt spinning, the melt needs to pass through the spinning assembly to form nylon 66 industrial filaments, and the spinning viscosity (relative viscosity of formic acid) is between 69 and 80. The preparation process of the existing nylon 66 industrial filament is as follows: the molten polyamide is extruded from the screw, and forms a thin stream of melt after passing through the spinning assembly and the spinneret, and forms the primary fiber 07 after cooling and solidifying. The fiber is stretched, shaped and deformed by the drafting equipment to form nylon 66 industrial filament. The schematic diagram of the production process of the existing nylon 66 industrial filament is shown in Figure 1.
锦纶66工业用长丝生产中，初生纤维经过预加张力辊01、第一对牵伸辊02、第二对牵伸辊03、第三对牵伸辊04以及第四对牵伸辊05后通过导丝器06进入卷绕机卷绕形成丝筒。锦纶66工业用长丝在形成丝筒前需经过两次拉伸，在第一牵伸辊和第二牵伸辊之间进行第一次拉伸，在第二牵伸辊和第三牵伸辊之间进行第二次拉伸，第一牵伸比为2.5～3.3，总牵伸比在4.5～6.0，卷绕速度在2300m/min～3800m/min。In the production of nylon 66 industrial filament, the primary fiber passes through the pre-tensioning roller 01, the first pair of drafting rollers 02, the second pair of drafting rollers 03, the third pair of drafting rollers 04 and the fourth pair of drafting rollers 05 Enter the winding machine through the wire guide 06 to form a wire package. Nylon 66 industrial filaments need to be stretched twice before forming a filament drum, the first stretching is carried out between the first drafting roller and the second drafting roller, and the The second drawing is carried out between the rollers, the first drawing ratio is 2.5-3.3, the total drawing ratio is 4.5-6.0, and the winding speed is 2300m/min-3800m/min.
用上述装置和工艺生产的锦纶66工业用长丝的物性情况如下，以1400dtex工业用长丝为例：2％的定伸长负荷为9.7N～10.3N(即模量在3.90GPa～4.14GPa)；4％定伸长负荷为15.4N～16.5N；8％定伸长负荷35.3N～37.5N；12％定伸长负荷71.3N～76.8N；强度为8.5cN/dtex左右；断裂伸长在16％～22％之间；定负荷伸长在10.5％～13.5％之间；干热收缩在4.5％～7.7％之间。The physical properties of the nylon 66 industrial filament produced by the above-mentioned device and process are as follows, taking the 1400dtex industrial filament as an example: the constant elongation load of 2% is 9.7N～10.3N (that is, the modulus is between 3.90GPa～4.14GPa ); 4% constant elongation load is 15.4N ~ 16.5N; 8% constant elongation load is 35.3N ~ 37.5N; 12% constant elongation load is 71.3N ~ 76.8N; strength is about 8.5cN/dtex; elongation at break Between 16% and 22%; constant load elongation between 10.5% and 13.5%; dry heat shrinkage between 4.5% and 7.7%.
随着对汽车轻量化的要求越来越高，对汽车骨架材料的也要求有更高的性能，进而对锦纶66工业用长丝的模量也有了更加高的要求。As the requirements for the lightweight of automobiles are getting higher and higher, higher performance is also required for automobile skeleton materials, and higher requirements are also required for the modulus of nylon 66 industrial filaments.
发明内容Contents of the invention
本发明在现有生产的锦纶66工业长丝的技术基础上，提供一种紧张热定型处理装置及高模量锦纶66工业用长丝生产方法。本发明通过采用紧张热定型处理装置对卷绕后的锦纶66工业用长丝进行紧张热定型处理，来提高锦纶66工业用长丝的模量。具体的，通过调节锦纶66工业用长丝在紧张热定型装置的牵伸加热箱内的停留时间、牵伸加热箱的温度以及施加 在锦纶66工业用长丝上的张力来提高锦纶66工业用长丝的模量。The invention provides a tension heat-setting treatment device and a production method of high-modulus nylon 66 industrial filaments on the technical basis of the existing nylon 66 industrial filaments. The invention improves the modulus of the nylon 66 industrial filament by adopting a tension heat-setting treatment device to perform tension heat-setting treatment on the wound nylon 66 industrial filament. Specifically, the nylon 66 industrial filament is improved by adjusting the residence time of the nylon 66 industrial filament in the draft heating box of the tension heat setting device, the temperature of the draft heating box, and the tension applied to the nylon 66 industrial filament. The modulus of the filament.
本发明具体采用以下技术方案：The present invention specifically adopts the following technical solutions:
高模量锦纶66工业用长丝生产用紧张热定型处理装置，包括依次设置的放线辊、牵伸加热箱、张力控制机构和卷取辊，所述牵伸加热箱内设置有导轮组，所述导轮组包括一个以上第一导线器，第一导线器的数量根据长丝在牵伸加热箱内需要折返的次数而定。所述张力控制机构包括两个以上的张力辊，张力控制机构通过张力辊的速度差异来调节锦纶66工业用长丝的张力。该高模量锦纶66工业用长丝的生产用装置的动力由电机提供。The tension heat setting treatment device for the production of high modulus nylon 66 industrial filaments includes a pay-off roller, a draft heating box, a tension control mechanism and a take-up roller arranged in sequence, and a guide wheel set is arranged in the draft heating box , the guide wheel set includes more than one first wire guide, and the number of the first wire guides is determined according to the number of times the filament needs to be turned back in the drafting heating box. The tension control mechanism includes more than two tension rollers, and the tension control mechanism adjusts the tension of nylon 66 industrial filaments through the speed difference of the tension rollers. The power of the production device for the high modulus nylon 66 industrial filament is provided by a motor.
为了使得从放线辊出来的长丝顺利进入牵伸加热箱内的导轮组上，可在放线辊后设置第二导线器。In order to make the long filament that comes out from the pay-off roller smoothly enter on the guide wheel group in the draft heating box, the second wire guide can be set behind the pay-off roller.
另外，为了使从牵伸加热箱内的导轮组上出来的长丝顺利进入卷取辊，可在卷取辊前也设置第二导线器。In addition, in order to make the filaments coming out from the guide wheel group in the drafting heating box enter the take-up roller smoothly, a second wire guide can also be arranged before the take-up roller.
上述牵伸加热箱的数量为一组以上，张力控制机构的数量也为一组以上，每个牵伸加热箱后均设置有张力控制机构。The number of the above-mentioned drawing heating boxes is more than one set, and the number of tension control mechanisms is also more than one set, and each drawing heating box is equipped with a tension control mechanism.
在具体实施例时，可将牵伸加热箱的数量和张力控制机构的数量设置为4，牵伸加热箱包括依次设置的第一牵伸加热箱、第二牵伸加热箱、第三牵伸加热箱、第四牵伸加热箱，第一牵伸加热箱后设置有第一张力控制机构，第二牵伸加热箱后设置有第二张力控制机构，第三牵伸加热箱后设置有第三张力控制机构，第四牵伸加热箱后设置有第四张力控制机构。In a specific embodiment, the number of drawing heating boxes and the number of tension control mechanisms can be set to 4, and the drawing heating boxes include a first drawing heating box, a second drawing heating box, a third drawing heating box, and a third drawing heating box arranged in sequence. The heating box and the fourth drawing heating box, the first tension control mechanism is arranged behind the first drawing heating box, the second tension control mechanism is arranged behind the second drawing heating box, and the third tension control mechanism is arranged behind the third drawing heating box. Three tension control mechanisms, the fourth tension control mechanism is arranged behind the fourth drafting heating box.
采用上述紧张热定型处理装置进行高模量锦纶66工业用长丝生产方法，包括以下步骤：Adopt above-mentioned tense heat setting treatment device to carry out the production method of high modulus nylon 66 industrial filament, comprise the following steps:
(1)将使用现有工艺生产并卷装好的锦纶66工业用长丝筒子送至放线辊上；(1) Send the nylon 66 industrial filament bobbin produced and packaged to the pay-off roller by using the existing process;
(2)锦纶66工业用长丝依次通过牵伸加热箱和张力控制机构。在进行紧张热定型处理过程中，可根据产品性能要求分别设定牵伸加热箱内的温度、走线时间(也就是锦纶66工业用长丝在牵伸加热箱中的停留时间)以及张力调节机构施加在锦纶66工业用长丝上的张力等条件，以实现提高锦纶66工业用长丝的模量的目标。(2) Nylon 66 industrial filaments pass through the draft heating box and the tension control mechanism in sequence. During the tension heat setting process, the temperature in the drawing heating box, the threading time (that is, the residence time of nylon 66 industrial filaments in the drawing heating box) and tension adjustment can be set separately according to the product performance requirements The tension and other conditions imposed by the mechanism on the nylon 66 industrial filaments are used to achieve the goal of improving the modulus of the nylon 66 industrial filaments.
具体的，所述牵伸加热箱内的温度设定范围为145～220℃；张力控制机构施加在锦纶66工业用长丝上的张力设置为0～33N。另外，为了保证锦纶66工业用长丝在牵伸加热箱中停留，利用导轮组将锦纶66工业用长丝在牵伸加热箱内进行折返，折返次数为1次以上。Specifically, the temperature setting range in the drawing heating box is 145-220°C; the tension applied by the tension control mechanism to the nylon 66 industrial filament is set at 0-33N. In addition, in order to ensure that the nylon 66 industrial filament stays in the draft heating box, the nylon 66 industrial filament is turned back in the draft heating box by using the guide wheel set, and the number of turns is more than 1 time.
如牵伸加热箱箱体内部长85cm，设置锦纶66工业用长丝在牵伸加热箱内的走线时间为20～50s，此时，锦纶66工业用长丝在牵伸加热箱内的折返次数设置为4～10次、锦纶 66工业用长丝的走线速度设置为20m/min。For example, the length of the drawing heating box is 85cm, and the routing time of the nylon 66 industrial filament in the drawing heating box is set to 20-50s. At this time, the number of turns of the nylon 66 industrial filament in the drawing heating box Set it to 4 to 10 times, and set the line speed of nylon 66 industrial filament to 20m/min.
在牵伸加热箱内，可以通过设定的走线速度以及每根丝线在牵伸加热箱体中的折返次数，来保证锦纶66工业用长丝在牵伸加热箱中的停留时间。可根据牵伸加热箱长度、长丝的粗细和级别，进而设定锦纶66工业用长丝的走线速度、折返次数，以保证锦纶66工业用长丝在牵伸加热箱中的停留时间，进而达到最终产品性能要求。In the drawing heating box, the residence time of nylon 66 industrial filaments in the drawing heating box can be guaranteed by the set wire speed and the number of turns of each thread in the drawing heating box. According to the length of the drawing heating box, the thickness and grade of the filament, the running speed and the number of turns of the nylon 66 industrial filament can be set to ensure the residence time of the nylon 66 industrial filament in the drawing heating box. In order to meet the performance requirements of the final product.
(3)锦纶66工业用长丝利用牵伸加热箱、张力控制机构进行紧张热定型处理后进行卷装。锦纶66工业用长丝在经过紧张热定型处理后模量会有一定程度的提高。(3) Nylon 66 industrial filaments are packaged after tension heat setting treatment by means of a drafting heating box and a tension control mechanism. The modulus of nylon 66 industrial filament will be improved to a certain extent after intense heat setting treatment.
当牵伸加热箱的数量和张力控制机构的数量为4时，若锦纶66工业用长丝的纤度为1413dtex，锦纶66工业用长丝的走线速度设置为20m/min，在牵伸加热箱内的折返次数设置为4～10次、走线时间设置为20～50s、张力设置为10～33N；第一牵伸加热箱的温度设定为145～160℃；第二牵伸加热箱的温度设定为160～200℃；第三牵伸加热箱的温度设定为190～220℃；第四牵伸加热箱的温度设定为170～190℃。When the number of drafting heating boxes and the number of tension control mechanisms are 4, if the fineness of nylon 66 industrial filaments is 1413dtex, the line speed of nylon 66 industrial filaments is set to 20m/min, and in the drawing heating box The number of times of turning back is set to 4-10 times, the running time is set to 20-50s, and the tension is set to 10-33N; the temperature of the first drawing heating box is set to 145-160°C; the temperature of the second drawing heating box The temperature is set at 160-200°C; the temperature of the third drawing heating box is set at 190-220°C; the temperature of the fourth drawing heating box is set at 170-190°C.
若锦纶66工业用长丝的纤度为938dtex，锦纶66工业用长丝的走线速度设置为20m/min，在牵伸加热箱内的折返次数设置为4～10次、走线时间设置为20～50s、张力设置为6～19N；第一牵伸加热箱的温度设定为145～160℃；第二牵伸加热箱的温度设定为160～200℃；第三牵伸加热箱的温度设定为190～220℃；第四牵伸加热箱的温度设定为170～190℃。If the denier of nylon 66 industrial filament is 938dtex, the routing speed of nylon 66 industrial filament is set to 20m/min, the number of turns in the draft heating box is set to 4 to 10 times, and the routing time is set to 20 ~50s, the tension is set at 6~19N; the temperature of the first drawing heating box is set at 145~160°C; the temperature of the second drawing heating box is set at 160~200°C; the temperature of the third drawing heating box The temperature is set at 190-220°C; the temperature of the fourth drawing heating box is set at 170-190°C.
本发明的有益效果为：The beneficial effects of the present invention are:
本发明采用紧张热定型处理装置对锦纶66工业用长丝进行了紧张热定型处理，通过对锦纶66工业用长丝的热定型时间、温度以及张力的控制进一步提高了锦纶66工业用长丝的模量。The present invention adopts tension heat setting processing device to carry out tension heat setting treatment on nylon 66 industrial filament, and further improves the nylon 66 industrial filament by controlling the heat setting time, temperature and tension of nylon 66 industrial filament. modulus.
本发明生产的锦纶66工业用长丝较常规工艺所生产的产品模量有所提高，1400dtex级别(1413dtex)工业丝2％定伸长负荷可达11.5N～15.4N，4％定伸长负荷可达19.3N～25.2N，8％定伸长负荷可达45.6N～65.6N，12％定伸长负荷可达90.4N～115.7N。即本发明所生产的锦纶66工业用长丝的模量较常规生产方法有显著提高。The nylon 66 industrial filament produced by the present invention has a higher modulus than the product produced by the conventional process, and the 2% constant elongation load of 1400dtex grade (1413dtex) industrial yarn can reach 11.5N～15.4N, and the 4% constant elongation load can reach 11.5N～15.4N. It can reach 19.3N～25.2N, the 8% constant elongation load can reach 45.6N～65.6N, and the 12% constant elongation load can reach 90.4N～115.7N. That is, the modulus of the nylon 66 industrial filament produced by the present invention is significantly improved compared with conventional production methods.
附图说明Description of drawings
图1为现有锦纶66工业用长丝生产流程简图。Fig. 1 is a schematic diagram of the existing nylon 66 industrial filament production process.
图2为本发明的紧张热定型处理装置的结构示意图。Fig. 2 is a schematic structural view of the tension heat setting treatment device of the present invention.
图3为本发明的紧张热定型处理装置中的导轮组的结构示意图。Fig. 3 is a schematic structural view of the guide wheel set in the tension heat setting treatment device of the present invention.
附图中，01为预加张力辊，02为第一对牵伸辊，03为第二对牵伸辊，04为第三对 牵伸辊，05为第四对牵伸辊，06为导丝器，07为初生纤维，1为放线辊，2为牵伸加热箱，21为第一牵伸加热箱，22为第二牵伸加热箱，23为第三牵伸加热箱，24为第四牵伸加热箱，25为导轮组，26为第一导线器，3为张力控制机构，31为第一张力控制机构，32为第二张力控制机构，33为第三张力控制机构，34为第四张力控制机构，35为张力辊，4为第二导线器，5为卷取辊，6为锦纶66工业用长丝。In the drawings, 01 is the pre-tensioning roller, 02 is the first pair of drafting rollers, 03 is the second pair of drafting rollers, 04 is the third pair of drafting rollers, 05 is the fourth pair of drafting rollers, and 06 is the guide Silk device, 07 is the primary fiber, 1 is the pay-off roller, 2 is the drawing heating box, 21 is the first drawing heating box, 22 is the second drawing heating box, 23 is the third drawing heating box, 24 is The fourth drawing heating box, 25 is the guide wheel group, 26 is the first wire guide, 3 is the tension control mechanism, 31 is the first tension control mechanism, 32 is the second tension control mechanism, 33 is the third tension control mechanism, 34 is the fourth tension control mechanism, 35 is a tension roller, 4 is a second wire guide, 5 is a take-up roller, and 6 is a nylon 66 industrial filament.
具体实施方式Detailed ways
下面通过具体实施方式对本发明进行更加详细的说明，以便于对本发明技术方案的理解，但并不用于对本发明保护范围的限制。In the following, the present invention will be described in more detail through specific embodiments, so as to facilitate the understanding of the technical solution of the present invention, but it is not used to limit the protection scope of the present invention.
需要说明的是：为了方便对锦纶66工业丝模量的表征，本实施例用2％、4％、8％、12％的定伸长负荷来衡量锦纶66工业丝的模量水平。本实施例中的第一导线器、第二导线器与现有锦纶66工业用长丝生产流程中使用的导丝器均是起到导线的作用，均为现有的零部件，三者可以是具有相同的结构的部件。It should be noted that: in order to facilitate the characterization of the modulus of nylon 66 industrial yarn, this example uses 2%, 4%, 8%, and 12% constant elongation load to measure the modulus level of nylon 66 industrial yarn. The first wire guide in the present embodiment, the second wire guide and the wire guide used in the existing nylon 66 industrial filament production process all play the role of wires, and are all existing parts. The three can are parts having the same structure.
高模量锦纶66工业用长丝生产用紧张热定型处理装置，包括依次设置的放线辊1、牵伸加热箱2、张力控制机构3和卷取辊5，所述牵伸加热箱2两端分别设置有导轮组25，所述导轮组25包括一个以上第一导线器26，第一导线器26的数量根据锦纶66工业用长丝6在牵伸加热箱2内需要折返的次数而定。所述张力控制机构3包括两个以上的张力辊35，本实施例中，张力控制机构3包括两个张力辊35，张力控制机构3通过张力辊35的速度差异来调节长丝的张力。该高模量锦纶66工业用长丝6的生产用紧张热定型处理装置的动力由电机提供。The tension heat setting treatment device for the production of high modulus nylon 66 industrial filaments includes a pay-off roller 1, a draft heating box 2, a tension control mechanism 3 and a take-up roller 5 arranged in sequence, and the draft heating box 2 is two Each end is provided with guide wheel set 25 respectively, and described guide wheel set 25 comprises more than one first wire guide 26, and the number of first wire guide 26 needs to turn back the number of times that nylon 66 industrial long filament 6 is in draft heating box 2 depends. The tension control mechanism 3 includes more than two tension rollers 35. In this embodiment, the tension control mechanism 3 includes two tension rollers 35. The tension control mechanism 3 adjusts the tension of the filaments through the speed difference of the tension rollers 35. The power of the tension heat setting treatment device for the production of the high modulus nylon 66 industrial filament 6 is provided by a motor.
为了使得从放线辊1出来的长丝顺利进入牵伸加热箱2内的导轮组25上，以及使从牵伸加热箱2内的导轮组25上出来的锦纶66工业用长丝6顺利进入卷取辊5，在放线辊1后以及卷取辊5前设置第二导线器4。In order to make the filaments coming out from the pay-off roller 1 smoothly enter the guide wheel group 25 in the drafting heating box 2, and make the nylon 66 industrial filament 6 coming out from the guiding wheel group 25 in the drafting heating box 2 Enter the take-up roller 5 smoothly, and set the second wire guide 4 after the pay-off roller 1 and before the take-up roller 5 .
本实施例中，牵伸加热箱2的数量和张力控制机构3的数量设置为4，牵伸加热箱2包括依次设置的第一牵伸加热箱21、第二牵伸加热箱22、第三牵伸加热箱23、第四牵伸加热箱24，第一牵伸加热箱21后设置有第一张力控制机构31，第二牵伸加热箱22后设置有第二张力控制机构32，第三牵伸加热箱23后设置有第三张力控制机构33，第四牵伸加热箱24后设置有第四张力控制机构34。牵伸加热箱2内部的长度为85cm。In this embodiment, the number of drawing heating boxes 2 and the number of tension control mechanisms 3 are set to 4, and the drawing heating box 2 includes a first drawing heating box 21, a second drawing heating box 22, and a third drawing heating box arranged in sequence. The draft heating box 23, the fourth draft heating box 24, the first tension control mechanism 31 is arranged behind the first draft heating box 21, the second tension control mechanism 32 is arranged behind the second draft heating box 22, and the third A third tension control mechanism 33 is arranged behind the draft heating box 23 , and a fourth tension control mechanism 34 is arranged behind the fourth draft heating box 24 . The length inside the draft heating box 2 is 85 cm.
使用常规纺丝工艺形成锦纶66工业用长丝6后，将锦纶66工业用长丝6通过上述紧张热定型处理装置进行处理，通过设定牵伸加热箱体2内的温度、在牵伸加热箱体2中的停留时间以及施加在锦纶66工业用长丝6上的张力大小来提高锦纶66工业用长丝6的模 量。After using the conventional spinning process to form nylon 66 industrial filament 6, the nylon 66 industrial filament 6 is processed by the above-mentioned tension heat setting treatment device, by setting the temperature in the drawing heating box 2, heating in the drawing The modulus of the nylon 66 industrial filament 6 is improved by the residence time in the casing 2 and the tension applied to the nylon 66 industrial filament 6 .
采用上述紧张热定型处理装置进行高模量锦纶66工业用长丝生产方法，包括以下步骤：Adopt above-mentioned tense heat setting treatment device to carry out the production method of high modulus nylon 66 industrial filament, comprise the following steps:
(1)将使用现有工艺生产并卷装好的锦纶66工业用长丝筒子送至放线辊上；(1) Send the nylon 66 industrial filament bobbin produced and packaged to the pay-off roller by using the existing process;
(2)锦纶66工业用长丝6依次通过牵伸加热箱2和张力控制机构3，实施例中，牵伸加热箱箱体内部长85cm，设置锦纶66工业用长丝在牵伸加热箱内的走线时间为20～50s，此时，锦纶66工业用长丝在牵伸加热箱内的折返次数设置为4～10次、锦纶66工业用长丝的走线速度设置为20m/min。(2) Nylon 66 industrial filament 6 passes through the drawing heating box 2 and the tension control mechanism 3 successively. The threading time is 20-50s. At this time, the turn-back times of nylon 66 industrial filaments in the draft heating box are set to 4-10 times, and the threading speed of nylon 66 industrial filaments is set to 20m/min.
(3)锦纶66工业用长丝6在进行牵伸加热箱2、张力调节机构3的紧张热定型处理后通过第二导线器4后进行卷装。锦纶66工业用长丝6在经过紧张热定型处理后模量会有一定程度的提高。(3) Nylon 66 industrial filament 6 passes through the second wire guide 4 after the tension heat setting treatment of the draft heating box 2 and the tension adjustment mechanism 3 and then is packaged. The modulus of nylon 66 industrial filament 6 will increase to a certain extent after tension heat setting treatment.
上述紧张热定型处理装置和方法的具体应用实施例如下：The specific application examples of the above-mentioned tension heat setting treatment device and method are as follows:
实施例Example
实施例1～4，当锦纶66工业用长丝的纤度为1413dtex时，锦纶66工业用长丝的走线速度设置为20m/min，在每个牵伸加热箱内的折返次数设置为4～10次、走线时间设置为20～50s、张力设置为10～33N；第一牵伸加热箱的温度设定为145～160℃；第二牵伸加热箱的温度设定为160～200℃；第三牵伸加热箱的温度设定为190～220℃；第四牵伸加热箱的温度设定为170～190℃。每个实施例的参数设置如表1所示。Embodiments 1 to 4, when the fineness of nylon 66 industrial filaments was 1413dtex, the line speed of nylon 66 industrial filaments was set to 20m/min, and the number of turns in each drawing heating box was set to 4～ 10 times, the threading time is set to 20-50s, the tension is set to 10-33N; the temperature of the first drawing heating box is set to 145-160°C; the temperature of the second drawing heating box is set to 160-200°C ; The temperature of the third drawing heating box is set at 190-220°C; the temperature of the fourth drawing heating box is set at 170-190°C. The parameter settings of each embodiment are shown in Table 1.
经过上述处理后，1413dtex锦纶66工业用长丝的2％定伸长负荷为11.5～15.4N，4％定伸长负荷为19.3～25.2N，8％定伸长负荷为45.6N～65.6N，12％定伸长负荷为90.4N～115.7N。After the above treatment, the 2% constant elongation load of 1413dtex nylon 66 industrial filament is 11.5-15.4N, the 4% constant elongation load is 19.3-25.2N, and the 8% constant elongation load is 45.6N-65.6N. 12% constant elongation load is 90.4N～115.7N.
实施例5～8，锦纶66工业用长丝的纤度为938dtex，锦纶66工业用长丝的走线速度设置为20m/min，在每个牵伸加热箱内的折返次数设置为4～10次、走线时间设置为20～50s、张力设置为6～19N；第一牵伸加热箱的温度设定为145～160℃；第二牵伸加热箱的温度设定为160～200℃；第三牵伸加热箱的温度设定为190～220℃；第四牵伸加热箱的温度设定为170～190℃。每个实施例的参数设置如表1所示。经过上述处理后，938dtex锦纶66工业用长丝的2％定伸长负荷为7.8～10.5N，4％定伸长负荷为13.4～17.3N，8％定伸长负荷为30.9N～44.3N，12％定伸长负荷为60.3N～78.1N。Examples 5 to 8, the fineness of nylon 66 industrial filaments is 938dtex, the line speed of nylon 66 industrial filaments is set to 20m/min, and the number of turns in each drawing heating box is set to 4 to 10 times , The line time is set to 20-50s, the tension is set to 6-19N; the temperature of the first drawing heating box is set to 145-160°C; the temperature of the second drawing heating box is set to 160-200°C; The temperature of the third drawing heating box is set at 190-220°C; the temperature of the fourth drawing heating box is set at 170-190°C. The parameter settings of each embodiment are shown in Table 1. After the above treatment, the 2% constant elongation load of 938dtex nylon 66 industrial filament is 7.8-10.5N, the 4% constant elongation load is 13.4-17.3N, and the 8% constant elongation load is 30.9N-44.3N. 12% constant elongation load is 60.3N～78.1N.
对比例comparative example
对比例1～2，使用现有工艺生产并卷装好的锦纶66工业用长丝未经过紧张热定型处理， 1413dtex锦纶66工业用长丝的2％定伸长负荷为10.1N，4％定伸长负荷为15.8N，8％定伸长负荷为36.5N，12％定伸长负荷为75N。938dtex锦纶66工业用长丝的2％定伸长负荷为6.9N，4％定伸长负荷为10.8N，8％定伸长负荷为24.3N，12％定伸长负荷为50.1N。Comparative examples 1 to 2, using the existing process to produce and package nylon 66 industrial filaments without tension heat setting treatment, the 2% constant elongation load of 1413dtex nylon 66 industrial filaments is 10.1N, 4% constant The elongation load was 15.8N, the 8% constant elongation load was 36.5N, and the 12% constant elongation load was 75N. The 2% constant elongation load of 938dtex nylon 66 industrial filament is 6.9N, the 4% constant elongation load is 10.8N, the 8% constant elongation load is 24.3N, and the 12% constant elongation load is 50.1N.
表1不同参数下对比例1～2和实施例1～8的2％～12％定伸长负荷2%～12% constant elongation load of comparative examples 1～2 and embodiments 1～8 under different parameters in table 1
Figure PCTCN2022094661-appb-000001
Figure PCTCN2022094661-appb-000001
Figure PCTCN2022094661-appb-000002
Figure PCTCN2022094661-appb-000002
由表1可得，锦纶66工业用长丝的纤度为1413dtex时，相比对比例和实施例1～3，实施例4的牵伸加热箱内的温度最高、张力控制机构施加的张力最大、牵伸加热箱内的走线时间最长、折返次数最大，1413dtex工业丝的定伸长负荷最优。锦纶66工业用长丝的纤度为938dtex时，相比对比例和实施例5～7，实施例8的牵伸加热箱内的温度最高、张力控制机构施加的张力最大、牵伸加热箱内的走线时间最长、折返次数最大，938dtex工业丝的定伸长负荷最优。It can be seen from Table 1 that when the fineness of nylon 66 industrial filament is 1413dtex, compared with the comparative example and Examples 1-3, the temperature in the drawing heating box of Example 4 is the highest, the tension applied by the tension control mechanism is the largest, The wire routing time in the draft heating box is the longest, the number of turns is the largest, and the constant elongation load of 1413dtex industrial yarn is optimal. When the fineness of nylon 66 industrial filament is 938dtex, compared with the comparative example and Examples 5-7, the temperature in the drawing heating box of Example 8 is the highest, the tension applied by the tension control mechanism is the largest, and the temperature in the drawing heating box is the highest. The running time is the longest, the number of turns is the largest, and the constant elongation load of 938dtex industrial yarn is the best.
以上所述之实施例，只是本发明的较佳实施例而已，并非限制本发明的实施范围，故凡依本发明专利范围所述的构造、特征及原理所做的等效变化或修饰，均应包括于本发明申请专利范围内。The above-described embodiments are only preferred embodiments of the present invention, and do not limit the scope of the present invention. Therefore, all equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the present invention are valid. Should be included in the patent scope of the present invention.

Claims (8)

  1. 高模量锦纶66工业用长丝生产用紧张热定型处理装置，其特征在于，包括依次设置的放线辊(1)、牵伸加热箱(2)、张力控制机构(3)和卷取辊(5)，所述牵伸加热箱(2)的两端分别设置有导轮组(25)，所述导轮组(25)包括一个以上第一导线器(26)，所述张力控制机构(3)包括两个以上的张力辊(35)，张力控制机构(3)通过张力辊(35)的速度差异来调节锦纶66工业用长丝(6)的张力。The tension heat setting treatment device for the production of high modulus nylon 66 industrial filament is characterized in that it includes a pay-off roller (1), a draft heating box (2), a tension control mechanism (3) and a take-up roller arranged in sequence (5), the two ends of the draft heating box (2) are respectively provided with guide wheel sets (25), and the guide wheel sets (25) include more than one first wire guide (26), and the tension control mechanism (3) More than two tension rollers (35) are included, and the tension control mechanism (3) adjusts the tension of the nylon 66 industrial filament (6) through the speed difference of the tension rollers (35).
  2. 根据权利要求1所述的高模量锦纶66工业用长丝生产用紧张热定型处理装置，其特征在于，放线辊(1)后和卷取辊(5)前设置有第二导线器(4)。The high modulus nylon 66 industrial filament production tension heat setting treatment device according to claim 1, characterized in that a second wire guide ( 4).
  3. 根据权利要求1所述的高模量锦纶66工业用长丝生产用紧张热定型处理装置，其特征在于，牵伸加热箱(2)的数量为一组以上，张力控制机构(3)的数量也为一组以上，每个牵伸加热箱(2)后均设置有张力控制机构(3)。According to claim 1, the high-modulus nylon 66 industrial filament production tension heat setting treatment device is characterized in that the number of drawing heating boxes (2) is more than one set, and the number of tension control mechanisms (3) There are also more than one group, and each stretching heating box (2) is equipped with a tension control mechanism (3).
  4. 根据权利要求1所述的高模量锦纶66工业用长丝生产用紧张热定型处理装置，其特征在于，牵伸加热箱(2)的数量和张力控制机构(3)的数量均为4，牵伸加热箱(2)包括依次设置的第一牵伸加热箱(21)、第二牵伸加热箱(22)、第三牵伸加热箱(23)、第四牵伸加热箱(24)，第一牵伸加热箱(21)后设置有第一张力控制机构(31)，第二牵伸加热箱(22)后设置有第二张力控制机构(32)，第三牵伸加热箱(23)后设置有第三张力控制机构(33)，第四牵伸加热箱(24)后设置有第四张力控制机构(34)。The tension heat-setting treatment device for producing high-modulus nylon 66 industrial filaments according to claim 1, wherein the number of drawing heating boxes (2) and the number of tension control mechanisms (3) are 4, The drawing heating box (2) includes a first drawing heating box (21), a second drawing heating box (22), a third drawing heating box (23), and a fourth drawing heating box (24) arranged in sequence , a first tension control mechanism (31) is arranged behind the first draft heating box (21), a second tension control mechanism (32) is arranged behind the second draft heating box (22), and a third stretch heating box ( A third tension control mechanism (33) is arranged after 23), and a fourth tension control mechanism (34) is arranged behind the fourth draft heating box (24).
  5. 采用权利要求1所述的紧张热定型处理装置进行高模量锦纶66工业用长丝生产方法，其特征在于，包括以下步骤：Adopting the tension heat setting treatment device described in claim 1 to carry out the production method of high modulus nylon 66 industrial filament, it is characterized in that, comprising the following steps:
    (1)将卷装好的锦纶66工业用长丝筒子送至放线辊(1)上；(1) Send the packaged nylon 66 industrial filament bobbin to the pay-off roller (1);
    (2)锦纶66工业用长丝(6)依次通过牵伸加热箱(2)和张力控制机构(3)，所述牵伸加热箱(2)内的温度设定范围为145～220℃；张力控制机构(3)施加在锦纶66工业用长丝(6)上的张力设置为0～33N；利用导轮组(25)将锦纶66工业用长丝在牵伸加热箱内折返1次以上；(2) Nylon 66 industrial filaments (6) pass through the drawing heating box (2) and the tension control mechanism (3) in sequence, and the temperature setting range in the drawing heating box (2) is 145-220°C; The tension applied by the tension control mechanism (3) to the nylon 66 industrial filament (6) is set to 0-33N; the nylon 66 industrial filament is turned back more than once in the draft heating box by using the guide wheel set (25) ;
    (3)锦纶66工业用长丝(6)利用牵伸加热箱(2)、张力控制机构(3)进行紧张热定型处理后进行卷装。(3) Nylon 66 industrial filaments (6) are packaged after tension heat setting treatment by means of a drafting heating box (2) and a tension control mechanism (3).
  6. 根据权利要求5所述的高模量锦纶66工业用长丝生产方法，其特征在于，high modulus nylon 66 industrial filament production method according to claim 5, is characterized in that,
    牵伸加热箱箱体内部长85cm，设置锦纶66工业用长丝在牵伸加热箱内的走线时间为20～50s，此时，锦纶66工业用长丝在牵伸加热箱内的折返次数设置为4～10次、锦纶66工业用长丝的走线速度设置为20m/min。The inner length of the drafting heating box is 85cm, and the time for the nylon 66 industrial filament to run in the drafting heating box is set to 20-50s. 4 to 10 times, the line speed of nylon 66 industrial filament is set to 20m/min.
  7. 根据权利要求6所述的高模量锦纶66工业用长丝生产方法，其特征在于，high modulus nylon 66 industrial filament production method according to claim 6, is characterized in that,
    当牵伸加热箱(2)的数量和张力控制机构(3)的数量为4时，若锦纶66工业用长丝(6)的纤度为1413dtex，锦纶66工业用长丝(6)的走线速度设置为20m/min，在牵伸加热箱(2)内的折返次数设置为4～10次、走线时间设置为20～50s、张力调节机构(3)施加在锦纶66工业用长丝(6)上端张力设置为10～33N；第一牵伸加热箱(21)的温度设定为145～160℃；第二牵伸加热箱(22)的温度设定为160～200℃；第三牵伸加热箱(23)的温度设定为190～220℃；第四牵伸加热箱(24)的温度设定为170～190℃。When the number of the drawing heating box (2) and the number of the tension control mechanism (3) are 4, if the fineness of the nylon 66 industrial filament (6) is 1413dtex, the alignment of the nylon 66 industrial filament (6) The speed is set to 20m/min, the number of turns in the draft heating box (2) is set to 4 to 10 times, the threading time is set to 20 to 50s, and the tension adjustment mechanism (3) is applied to the nylon 66 industrial filament ( 6) The tension at the upper end is set to 10-33N; the temperature of the first drawing heating box (21) is set to 145-160°C; the temperature of the second drawing heating box (22) is set to 160-200°C; the third The temperature of the drawing heating box (23) is set at 190-220°C; the temperature of the fourth drawing heating box (24) is set at 170-190°C.
  8. 根据权利要求6所述的高模量锦纶66工业用长丝生产方法，其特征在于，high modulus nylon 66 industrial filament production method according to claim 6, is characterized in that,
    当牵伸加热箱(2)的数量和张力控制机构(3)的数量为4时，若锦纶66工业用长丝(6)的纤度为938dtex，锦纶66工业用长丝(6)的走线速度设置为20m/min，在牵伸加热箱(6)内的折返次数设置为4～10次、走线时间设置为20～50s、张力调节机构(3)施加在锦纶66工业用长丝(6)上的张力设置为6～19N；第一牵伸加热箱(21)的温度设定为145～160℃；第二牵伸加热箱(22)的温度设定为160～200℃；第三牵伸加热箱(23)的温度设定为190～220℃；第四牵伸加热箱(24)的温度设定为170～190℃。When the number of the drawing heating box (2) and the number of the tension control mechanism (3) are 4, if the fineness of the nylon 66 industrial filament (6) is 938dtex, the alignment of the nylon 66 industrial filament (6) The speed is set to 20m/min, the number of turns in the draft heating box (6) is set to 4 to 10 times, the threading time is set to 20 to 50s, and the tension adjustment mechanism (3) is applied to the nylon 66 industrial filament ( 6) The tension on the top is set to 6～19N; the temperature of the first drawing heating box (21) is set to 145～160°C; the temperature of the second drawing heating box (22) is set to 160～200°C; The temperature of the three drawing heating boxes (23) is set at 190～220°C; the temperature of the fourth drawing heating box (24) is set at 170～190°C.
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