One-step production device for twisting and plying large-diameter polymer monofilaments

Abstract

The present invention discloses a one-step production device for twisting and plying large-diameter polymer monofilaments, including a frame, on which are mounted three groups of two-for-one twisting spindles as large-diameter polymer monofilament primary twisting devices, a set of ring spindle secondary twisting spindles as secondary twisting and plying winding devices, and a set of overfeed traction devices. The present invention uses a common set of rollers for primary twisting and secondary twisting, and is equipped with three sets of primary twist broken wire detection and a set of ply broken wire detection to ensure automatic shutdown when the wire breaks during the production process. The equipment of the present invention adopts a one-step process for primary and secondary twisting, and the wire cannot be spliced ​​after it breaks, thereby greatly improving the product quality.

Description

Technical Field

[0001] The invention relates to a one-step production device for twisting and plying large-diameter polymer monofilaments. Background Art

[0002] Ply yarn is a yarn made by twisting two or more single yarns. It is stronger and more wear-resistant than single yarn. At the same time, ply yarn can also be combined and twisted in a certain way to obtain double-twisted ply yarn, such as double-ply yarn, triple-ply yarn and multi-ply yarn. Ply yarn also refers to the number of yarns contained in a thread.

[0003] The existing strand production technology adopts a step-by-step method to produce strands, and the initial twisting and plying are carried out separately. The lengths of the original silk are inconsistent, resulting in the need for joints in the initial twisting of the strands. The traditional doubling machine adopts centralized transmission and has a large number of spindles. When a certain station needs to be spliced, all parts are in motion, which requires relatively high operating skills of the workers. In addition, improper operation or carelessness during the movement of the parts can easily cause safety accidents. If the broken wires in the production are not handled in time, it is easy to cause the ply to be missing in the ply-twisted and re-twisted wire, resulting in a low product yield. In addition, the original silk used in the existing strand production does not have large-diameter polymer monofilaments. Large-diameter polymer monofilaments have the characteristics of high strength and high rigidity. It is difficult for traditional equipment to achieve consistent tension in the doubling and plying of polymer monofilaments, and it is not easy to achieve consistent twist, and the ply is easy to loosen, resulting in product defects. Summary of the invention

[0004] The object of the present invention is to provide a one-step production device for twisting and plying large-diameter polymer monofilaments, which uses large-diameter polymer monofilaments to produce strands with higher strength and rigidity per unit diameter and improve the durability of the strands.

[0005] The technical solution of the present invention is:

[0006] A one-step production device for twisting and plying large-diameter polymer monofilaments, characterized in that it comprises a frame, on which are mounted three sets of two-for-one twisting spindles as large-diameter polymer monofilament primary twisting devices, a set of ring spindle secondary twisting spindles as secondary twisting and plying winding devices, and a set of overfeed traction devices;

[0007] The three groups of two-for-one twisting spindles and one set of ring-spindle double-twisting spindles are arranged in a "well" shape, and the three groups of two-for-one twisting spindles are arranged in an isosceles triangle and installed on the frame mounting plate. The bottom of the two-for-one twisting spindle is a flat belt transmission device, and a flat belt surrounds the three two-for-one twisting spindles. The driving motor is installed on the bottom mounting plate through a supporting column, and the driving pulley is installed on the output shaft of the driving motor. The driving motor mounting plate can rotate around a fixed pillar to tighten the belt; a neodymium magnet is installed at the bottom of each two-for-one twisting spindle, and a proximity switch is installed on the frame to measure the rotation speed of the two-for-one twisting spindle, and together with the traction line speed of the overfeed traction roller installed on the upper part of the frame, it is used to determine whether the twist of the original silk is consistent with the set twist; a raw silk unwinding tension damper and a lining spindle are installed on the upper part of the central tube of each two-for-one twisting spindle, and the unwinding tension damper can effectively prevent The original silk is loosened when it is unwound from the bobbin, causing disordered silk and affecting the twisting quality of the silk; the structure of the original silk unwinding tension damper is to install a disc flange with a bearing on the center tube, and a symmetrical wire guide lever is installed on the disc flange, and wire guide porcelain eyes are installed on both sides of the lever. The unwound original silk passes through the inside and is led upward. A wool felt is installed on the upper side of the lever. When unwinding, the wool felt rubs against the wire guide lever, increasing the unwinding resistance. A spring is installed on the wool felt, and a nut screwed on the center tube is installed on the upper part of the spring. The pre-tightening force of the spring on the wool felt is adjusted by adjusting the height of the nut, thereby adjusting the unwinding tension of the wire guide lever; a partition is installed between each group of double twisting spindles to prevent the air rings of each spindle from affecting each other during twisting; the lining spindle adds tension to the silk to prevent the silk thread from twisting, prevent the twist from being transmitted downward, limit the radius of the spindle air ring, and avoid friction with the frame partition;

[0008] A column is installed in the center of the frame, a partition is installed on the side of the column, and three special-shaped plates are installed on the upper part of the column, on which a wire guide porcelain eye is installed. The wire guide porcelain eye is located just above the central tube of each spindle for two-for-one twisting, acting as a two-for-one twist stopper to prevent the twist of the wire from being transmitted upward from this position. A tension-type broken wire detection sensor is installed on the special-shaped plate through a sheet metal bracket. The relative position of the bracket and the special-shaped plate can be adjusted so that the wire passes through the wire guide and then passes through the sensor. The sensor and the wire are fully fitted, so that the sensor can detect the tension on the wire, and the roller of the sensor also measures the length of the wire.

[0009] After passing through the tension-type broken wire detection sensor, the raw wire is pulled upward into the wire guide wheel installed on the upper part of the frame. The three wire guide wheels on the frame correspond to the initial twisted wires of the three groups of double twisting spindles respectively. The initial twisted wires are guided by the wire guide wheels, and the three bundles of initial twisted wires are combined and pulled downward by the overfeeding traction roller. The overfeeding traction roller is installed on the output shaft of the stepper motor, and the stepper motor is installed on the frame through the motor bracket; the leather ring pressing frame is installed on the front side of the roller, and there are two rollers on the swing arm of the pressing frame, on which the leather ring is installed, and the swing arm and the pressing frame base are hinged. The pressure frame base is connected by a chain, and the swing arm is pulled downward by a tension spring so that the leather ring installed on the swing arm fully fits with the roller, and the primary twisted strands are pressed tightly against the roller by the leather ring and pulled forward by the roller; before entering the roller, the primary twisted strands must first pass through a ceramic wire guide, which is installed on a set of crank slider mechanisms and can move back and forth along the width direction of the leather ring. The crank slider mechanism is the reciprocating swing module of the leather ring; in this way, the primary twisted strands can be prevented from rubbing against the leather ring at the same position, thereby increasing the life of the leather ring. A tension-type broken wire detection sensor and a twist-stop porcelain eye are sequentially installed below the traction roller along the tangential direction of the roller circumference. The primary twisted stranded yarn is pulled downward by the roller, passes through the tension-type broken wire detection sensor, and then passes through the twist-stop porcelain eye, and then passes through the steel collar hook installed on the ring steel collar plate, and then the yarn is wound on the winding bobbin installed on the ring spindle; when the ring spindle re-twisting starts, the brushless motor installed on the frame mounting plate starts, and drives the ring spindle to rotate through the flat belt transmission, and the yarn is wound on the bobbin and rotates with the spindle, and the yarn drives the steel collar hook installed on the steel collar plate to rotate 360° around the steel collar plate to re-twist the stranded yarn; a set of ball screw reciprocating modules that move up and down are installed on the frame, and the steel collar plate is installed on it. When re-twisting is performed, the module moves up and down with the steel collar plate, and the re-twisted stranded yarn is arranged and wound on the bobbin according to the set arrangement spacing;

[0010] During operation, the edged yarn tube is loaded into the yarn cup of the two-for-one twisting spindle, and the original yarn is drawn out from the edged yarn tube; it passes through the lever of the original yarn unwinding tension damper, and then passes through the wire guide porcelain eye on the top of the lining spindle into the center tube, and then passes through the bottom of the two-for-one twisting spindle, and then passes through the corresponding two-for-one twist stopper of each spindle, and then passes through the tension-type broken wire detection sensor and is wound upward on the wire guide wheel. A magnet is installed on the inside of the yarn cup and another group of magnets is installed on the outside. The two magnets attract each other. When the two-for-one twisting spindle is driven by the two-for-one twisting spindle belt, it is ensured that only the two-for-one twisting spindle rotates and the yarn cup remains stationary; the three strands of primary twisted yarn pass through the guide wheel and are combined on the wire guide on the reciprocating swing module of the leather ring, and the three strands of primary twisted yarn are pulled into the overfeed traction roller, and then the leather ring pressing frame and the leather ring are pressed down, and the leather ring presses the three strands of primary twisted yarn on the roller, pulling the three strands of yarn downward The wire bundle is led through the ring ingot tension type broken wire detection sensor and then through the ring ingot twist stopper, and then downward through the steel collar hook to wind the wire bundle on the ring ingot winding tube; the steel collar hook is installed on the steel collar plate and rotates around the steel collar plate, and the steel collar plate is installed on the ring ingot reciprocating forming module. The module moves up and down to drive the steel collar plate to move up and down, and the complex twisted strands are tightly wound on the ring ingot winding tube according to the set value; a spindle speed feedback device is installed at the bottom of each spindle, including the neodymium magnet and the proximity switch, so as to measure the speed of the double-twisted spindle, and record and feedback the twist of the double-twisted original silk in real time. If the actual twist is different from the set value, the sensor sends the data to the central processor to adjust the speed of the spindle drive motor, the speed of the traction roller motor and the speed of the ring ingot spindle, so as to control the twist within the set range.

[0011] During production, the controller generates a form for this data and records it in the computer, so that the source production data can be easily queried when tracing product quality at a later time.

[0012] The ring twisting collar plate adopts automatic oil suction lubrication. As long as there is oil in the oil pot, there is no need to manually lubricate the collar ring.

[0013] The control unit is installed in the control box on the upper side of the frame. The control box is equipped with drivers for each motor on the equipment and a PLC that controls the operation of the equipment. The touch screen communicates with the PLC via 485 communication to manage the equipment's production process data on site. The PLC is configured with local and remote monitoring to achieve remote status monitoring and alarm push. The data in the control system records the working status, startup rate, and operating time of each machine, accurately calculating the output of each machine and providing basic data for production assessment and order management.

[0014] The present invention uses a common set of rollers for primary twisting and secondary twisting, and is equipped with 3 sets of primary twist broken wire detection and a set of strand broken wire detection to ensure automatic shutdown when wire breaks during production. The production speed and production length are sampled based on the speed of the main roller to achieve fixed length and full roll automatic stop control. The main roller adopts a leather ring grip assisted by a reciprocating wire guide to extend the service life of the leather ring. This design greatly improves operating efficiency and reduces labor intensity. Due to the large volume of finished product rolls, the full roll time is more than 20 hours, and the equipment has automatic stop functions for broken wire and full roll, so in theory, only the day shift needs to be operated to carry out the yarn replacement operation, and the night shift can be unattended to save labor costs to the maximum extent. The ring spindle secondary twist steel collar plate adopts a new automatic oil suction lubrication method. As long as there is oil in the oil pot, there is no need to manually lubricate the steel collar. When the number of machines reaches a certain level, remote status monitoring and alarm push are realized through the EtherCAT bus communication protocol. The data in the control system can record the working status, startup rate, and operating time of each machine, and can also accurately calculate the machine output, providing basic data for production assessment and order management.

[0015] Since the equipment of the present invention adopts a one-step process of primary and secondary twisting, broken wires cannot be connected, thereby greatly improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0018] Figure 2 yes Figure 1 Right view of .

[0019] Figure 3 yes Figure 1 Top view of the .

[0020] Figure 4 It is a schematic diagram of the spindle speed feedback device.

[0021] Figure 5 It is a schematic diagram of the double twisting, twist stop and double twisting broken yarn detection structure.

[0022] Figure 6 It is a plan view of the double twisting and ring flat belt transmission structure.

[0023] Figure 7 It is a vertical view of the transmission structure of the two-for-one twisting spindle.

[0024] Figure 8 This is the structure diagram of the ring drive.

[0025] Fig. 9 It is a schematic diagram of the double twisting mechanism of monofilament yarn.

[0026] Fig.10 , Fig.11 , Fig.12 They are schematic diagrams of different sides of the traction roller structure. Implementation

[0027] A one-step production device for twisting and plying large-diameter polymer monofilaments, comprising a frame 1, on which are mounted three sets of two-for-one twisting spindles 2 as large-diameter polymer monofilament primary twisting devices, a set of ring spindle secondary twisting spindles 3 as secondary twisting and plying winding devices, and a set of overfeed traction devices 4;

[0028] The three groups of two-for-one twisting spindles and one set of ring-spindle double-twisting spindles are arranged in a "well" shape, and the three groups of two-for-one twisting spindles are arranged in an isosceles triangle and installed on the frame mounting plate. The bottom of the two-for-one twisting spindle is a flat belt transmission device, and a flat belt 5 surrounds the three two-for-one twisting spindles. The driving motor 4 is installed on the bottom mounting plate 5 through a supporting column, and the driving pulley 6 is installed on the output shaft of the driving motor. The driving motor mounting plate (i.e., the bottom mounting plate 5) can rotate around a fixed pillar to tighten the belt; a neodymium magnet 39 is installed at the bottom of each two-for-one twisting spindle, and a proximity switch 7 is installed on the frame to measure the rotation speed of the two-for-one twisting spindle, and together with the traction line speed of the overfeed traction roller installed on the upper part of the frame, it is used to determine whether the twist of the original silk is consistent with the set twist; a raw silk unwinding tension damper and a lining spindle 9 are installed on the upper part of the central tube 8 of each two-for-one twisting spindle, and the unwinding tension damper can It effectively prevents the original silk from loosening when unwinding from the bobbin, causing disordered silk and affecting the twisting quality of the silk; the structure of the original silk unwinding tension damper is to install a bearing disc flange 10 on the center tube, and a symmetrical wire guide lever 11 is installed on the disc flange, and wire guide porcelain eyes are installed on both sides of the lever. The unwound original silk passes through the inside and is led out upward. A wool felt 12 is installed on the upper side of the lever. When unwinding, the wool felt rubs against the wire guide lever to increase the unwinding resistance. A spring 13 is installed on the wool felt, and a nut 14 screwed on the center tube is installed on the upper part of the spring. The pre-tightening force of the spring on the wool felt is adjusted by adjusting the height of the nut, so as to adjust the unwinding tension of the wire guide lever; a partition is installed between each group of double twisting spindles to prevent the air rings of each spindle from affecting each other during twisting; the lining spindle adds tension to the wire to prevent the silk thread from twisting, prevent the twist from being transmitted downward, limit the radius of the spindle air ring, and avoid friction with the frame partition;

[0029] A column 15 is installed in the center of the frame, a partition 16 is installed on the side of the column, and three special-shaped flat plates 17 are installed on the upper part of the column, on which a wire guide porcelain eye 18 is installed. The wire guide porcelain eye is located just above the central tube of each two-for-one twisting spindle, acting as a two-for-one twist stopper to prevent the twist of the wire from being transmitted upward from this position. A tension-type broken wire detection sensor 19 is installed on the flat plate. The tension-type broken wire detection sensor is installed on the special-shaped flat plate through a sheet metal bracket. The relative position of the bracket and the special-shaped flat plate can be adjusted so that the wire passes through the wire guide and then passes through the sensor. The sensor and the wire are fully fitted, so that the sensor can detect the tension on the wire, and the roller of the sensor also measures the length of the wire.

[0030] After passing through the tension type broken wire detection sensor 19, the raw wire is pulled upward into the wire guide wheel 20 installed on the upper part of the frame. The three wire guide wheels on the frame correspond to the initial twisted wires of the three groups of double twisting spindles respectively. The initial twisted wires are guided by the wire guide wheels, and the three bundles of initial twisted wires are combined and pulled downward by the overfeeding traction roller 21. The overfeeding traction roller is installed on the output shaft of the stepper motor, and the stepper motor 22 is installed on the frame through the motor bracket; the leather ring pressure frame 23 is installed on the front side of the roller, and there are two rollers on the pressure frame swing arm, on which the leather ring 24 is installed, and the swing arm and the pressure frame The base is connected by a hinge, and the pressure frame base pulls the swing arm downward through a tension spring, so that the leather ring installed on the swing arm is fully fitted with the roller, and the initially twisted strands are pressed tightly against the roller by the leather ring and pulled forward by the roller; before entering the roller, the initially twisted strands must first pass through a ceramic wire guide, which is installed on a set of crank slider mechanisms 25 and can move back and forth along the width direction of the leather ring. The crank slider mechanism is the reciprocating swing module of the leather ring, which can avoid the initially twisted strands from rubbing against the leather ring at the same position, thereby increasing the life of the leather ring. A ring ingot tension type broken wire detection sensor 26 and a ring ingot twist stop porcelain eye 27 are sequentially installed below the traction roller along the roller circumferential tangent direction. The primary twisted plied wire is pulled downward by the roller, passes through the ring ingot tension type broken wire detection sensor, and then passes through the ring ingot twist stop porcelain eye, and then passes through the steel collar hook 29 installed on the ring ingot steel collar plate 28, and then the wire is wound on the winding tube 30 installed on the ring ingot spindle; when the ring ingot re-twisting starts, the brushless motor 3 installed on the frame mounting plate 1 is started, and the ring spindle is driven to rotate through the flat belt transmission. The wire is wound on the bobbin and rotates with the spindle. The wire then drives the steel collar hook installed on the steel collar plate to rotate 360° around the steel collar plate to re-twist the ply yarn. A set of ball screw reciprocating modules 32 that moves up and down is installed on the frame, and the steel collar plate 28 is installed on it. When re-twisting, the ball screw reciprocating module drives the steel collar plate to move up and down, and the re-twisted ply yarn is arranged on the bobbin according to the set arrangement spacing.

[0031] During operation, the edge yarn tube 33 is loaded into the yarn cup 34 of the two-for-one twisting spindle, and the original yarn is drawn out from the edge yarn tube; it passes through the wire guide lever 11 of the original yarn unwinding tension damper, and then passes through the wire guide porcelain eye on the top of the lining spindle into the center tube, and then passes through the bottom of the two-for-one twisting spindle, and then passes through the two-for-one twist stopper corresponding to each spindle, and then passes through the tension-type broken wire detection sensor and is wound upward on the wire guide wheel. A magnet 35 is installed on the inside of the yarn cup and another group of magnets 36 is installed on the outside. The two magnets attract each other. When the two-for-one twisting spindle is driven by the two-for-one twisting spindle belt to run, it is ensured that only the two-for-one twisting spindle rotates and the yarn cup remains motionless; the three strands of primary twisted yarn pass through the guide wheel and are combined on the wire guide on the leather ring reciprocating swing module, and the three strands of primary twisted yarn are pulled into the overfeed traction roller, and then the leather ring pressing frame and the leather ring are pressed down, and the leather ring presses the three strands of primary twisted yarn on the roller, and the three strands of yarn are pulled to the The lower traction passes through the ring ingot tension type broken wire detection sensor and then passes through the ring ingot twist stopper, and then passes through the steel collar hook downward to wind the wire bundle on the ring winding tube; the steel collar hook is installed on the steel collar plate and rotates around the steel collar plate, and the steel collar plate is installed on the ring ingot reciprocating forming module 37. The ring ingot reciprocating forming module moves up and down to drive the steel collar plate to move up and down, and the complex twisted strands are tightly wound on the ring winding tube according to the set value; a spindle speed feedback device is installed at the bottom of each spindle, including the neodymium magnet and the proximity switch, so as to measure the speed of the double-twisted spindle, and record and feedback the twist of the double-twisted original silk in real time. If the actual twist is different from the set value, the sensor sends the data to the central processor to adjust the speed of the spindle drive motor, the speed of the traction roller motor and the speed of the ring spindle, so as to control the twist within the set range.

[0032] During production, the controller generates a form for this data and records it in the computer, so that the source production data can be easily queried when tracing product quality at a later time.

[0033] The ring twisting collar plate adopts automatic oil suction lubrication. As long as there is oil in the oil pot, there is no need to manually lubricate the collar ring.

[0034] The control unit is installed in the control box 38 on the upper side of the frame. The control box is equipped with drivers for each motor on the equipment and a PLC that controls the operation of the equipment. The touch screen communicates with the PLC via 485 communication to manage the equipment production process data on site. The PLC is configured with local and remote monitoring to achieve remote status monitoring and alarm push. The data in the control system records the working status, startup rate, and operating time of each machine, accurately calculates the output of each machine, and provides basic data for production assessment and order management.

Claims

1. A one-step production device for twisting and plying large-diameter polymer monofilaments, characterized by: The machine frame comprises three sets of two-for-one twisting spindles as primary twisting devices for large-diameter polymer monofilaments, one set of ring spindle secondary twisting spindles as secondary twisting and plying winding devices, and one set of overfeed traction devices including overfeed traction rollers; The three groups of two-for-one twisting spindles and one set of ring-spindle double-twisting spindles are arranged in a "well" shape, and the three groups of two-for-one twisting spindles are arranged in an isosceles triangle and installed on the frame mounting plate. The bottom of the two-for-one twisting spindle is a flat belt transmission device, and a flat belt surrounds three two-for-one twisting spindles. The driving motor is installed on the bottom mounting plate through a supporting column, and the driving pulley is installed on the output shaft of the driving motor. The driving motor mounting plate rotates around a fixed pillar to tighten the belt; a neodymium magnet is installed at the bottom of each two-for-one twisting spindle, and a proximity switch is installed on the frame to measure the rotation speed of the two-for-one twisting spindle, and together with the traction line speed of the overfeed traction roller installed on the upper part of the frame, it is used to determine whether the twist of the original silk is consistent with the set twist; a raw silk unwinding tension damper is installed on the upper part of the central tube of each two-for-one twisting spindle and lining spindles; the structure of the raw wire unwinding tension damper is to install a disc flange with a bearing on the center tube, and a symmetrical wire guide lever is installed on the disc flange, and wire guide porcelain eyes are installed on both sides of the wire guide lever. The unwinding raw wire passes through the inside and is led upward. A wool felt is installed on the upper side of the wire guide lever. When unwinding, the wool felt rubs against the wire guide lever to increase the unwinding resistance. A spring is installed on the wool felt, and a nut screwed on the center tube is installed on the upper part of the spring. The pre-tightening force of the spring on the wool felt is adjusted by adjusting the height of the nut, so as to adjust the unwinding tension of the wire guide lever; a partition is installed between each group of double twisting spindles to prevent the air rings of each spindle from affecting each other during twisting; the lining spindle adds tension to the wire to prevent the silk thread from twisting, prevent the twist from being transmitted downward, limit the radius of the spindle air ring, and avoid friction with the frame partition; A column is installed in the center of the frame, a partition is installed on the side of the column, and three special-shaped plates are installed on the upper part of the column. The special-shaped plates are equipped with wire guide porcelain eyes. The wire guide porcelain eyes are located just above the central tube of each two-for-one twisting spindle, acting as a two-for-one twist stopper to prevent the twist of the wire from being transmitted upward from this position. A tension-type broken wire detection sensor is installed on the plate. The tension-type broken wire detection sensor is installed on the special-shaped plate through a sheet metal bracket. The relative position of the bracket and the special-shaped plate can be adjusted so that the wire passes through the wire guide and then passes through the sensor. The sensor is fully fitted with the wire, and the sensor detects the tension on the wire. At the same time, the roller of the sensor also measures the length of the wire. After passing through the tension-type broken wire detection sensor, the raw wire is pulled upward into the wire guide wheel installed on the upper part of the frame. The three wire guide wheels on the frame correspond to the primary twisted wires of the three groups of double twisting spindles respectively. The primary twisted wires are guided by the wire guide wheels, and the three bundles of primary twisted wires are ply-twisted and ply-twisted wires are pulled downward by the overfeeding traction roller. The overfeeding traction roller is installed on the output shaft of the stepper motor, and the stepper motor is installed on the frame through the motor bracket; the leather ring pressing frame is installed on the front side of the overfeeding traction roller, and there are two rollers on the swing arm of the pressing frame. The rollers The leather ring is installed on the overfeeding traction roller, and the swing arm and the pressure frame base are connected by a hinge. The pressure frame base pulls the swing arm downward through a tension spring, so that the leather ring installed on the swing arm fully fits the overfeeding traction roller, and the primary twisted plied yarn is pressed tightly against the overfeeding traction roller by the leather ring and pulled forward by the overfeeding traction roller; before entering the overfeeding traction roller, the primary twisted plied yarn must first pass through a wire guide, which is installed on a set of crank slider mechanism and can reciprocate along the width direction of the leather ring. The block mechanism is the reciprocating swing module of the leather ring; a tension-type broken wire detection sensor and a twist-stop porcelain eye are installed in sequence below the overfeed traction roller along the tangent direction of the overfeed traction roller. The primary twisted plied wire is pulled downward by the overfeed traction roller, passes through the tension-type broken wire detection sensor, and then passes through the twist-stop porcelain eye, and then passes through the steel collar hook installed on the steel collar plate, and then the wire is wound on the winding tube installed on the ring spindle; when the ring spindle re-twisting starts, the brushless motor installed on the frame mounting plate The machine starts, and the flat belt drives the ring spindle to rotate. The wire is wound on the bobbin and rotates with the spindle. The wire then drives the steel collar hook installed on the steel collar plate to rotate 360° around the steel collar plate to re-twist the strands. A set of ball screw reciprocating modules that move up and down is installed on the frame, and the steel collar plate is installed on the ball screw reciprocating modules. When re-twisting, the ball screw reciprocating modules move the steel collar plate up and down, and the re-twisted strands are wound on the bobbin according to the set arrangement spacing. When working, the edged bobbin is put into the yarn cup of the two-for-one twisting spindle, and the raw yarn is drawn out from the edged bobbin; The lever passes through the tension damper of the unwinding original yarn, and then passes through the center tube from the wire guide porcelain eye on the top of the lining spindle, and then passes through the bottom of the two-for-one twisting spindle, and then passes through the two-for-one twist stopper corresponding to each spindle, and then passes through the tension-type broken wire detection sensor and is wound upward on the wire guide wheel. A magnet is installed on the inside of the yarn cup and another group of magnets is installed on the outside. The two magnets attract each other. When the two-for-one twisting spindle is driven by the two-for-one twisting spindle belt, it is ensured that only the two-for-one twisting spindle rotates and the yarn cup remains stationary; the three strands of primary twisted yarn pass through the guide wheel and are combined on the wire guide on the reciprocating swing module of the leather ring, and the three strands of primary twisted yarn are pulled into the overfeed traction roller, and then the leather ring pressing frame and the leather ring are pressed down. The leather ring presses the three strands of primary twisted yarn on the overfeed traction roller, and the three strands of yarn are pulled downward through the tension-type broken wire detection sensor. The device passes through the ring twist stopper and downward through the steel collar hook to wind the yarn bundle on the ring winding tube; the steel collar hook is installed on the steel collar plate and rotates around the steel collar plate. The steel collar plate is installed on the ring reciprocating forming module. The module moves up and down to drive the steel collar plate to move up and down, and the complex twisted strands are tightly wound on the ring winding tube according to the set value; a spindle speed feedback device is installed at the bottom of each spindle, including the neodymium magnet and the proximity switch, so as to measure the speed of the double-twisted spindle and record and feedback the twist of the double-twisted original yarn in real time. If the actual twist is different from the set value, the sensor sends the data to the central processor to adjust the speed of the spindle drive motor, the speed of the overfeed traction roller motor and the speed of the ring spindle, so as to control the twist within the set range.

2. The one-step production device for twisting and plying large-diameter polymer monofilaments according to claim 1 is characterized by: The steel collar plate adopts automatic oil suction lubrication. As long as there is oil in the oil pot, there is no need to manually lubricate the steel collar ring.

3. The one-step production device for twisting and plying large-diameter polymer monofilaments according to claim 1 is characterized by: The control unit is installed in the control box on the upper side of the frame. The control box is equipped with drivers for each motor on the equipment and a PLC that controls the operation of the equipment. The touch screen communicates with the PLC via the 485 protocol to manage the equipment's production process data on site. The PLC is configured with local and remote monitoring to achieve remote status monitoring and alarm push. The data in the control system records the working status, startup rate, and operating time of each machine, accurately calculating the output of each machine and providing basic data for production assessment and order management.

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