An automatic group-changing rotary wire pay-off machine for a double-twisting machine and a group-changing method

Abstract

An automatic group-changing rotary pay-off machine and a group-changing method for a double-twist machine include a large plate one, a clamping cylinder assembly, a positioning pin assembly, a motor slide assembly, a sensor assembly, a toothed belt, a toothed belt, a flying disc assembly, a wire wheel swivel, and a brake air brake. The flying disc assembly is installed on the large plate one and the large plate two. The flying disc assembly is driven to rotate by the toothed belt wheel. A plurality of toothed belt wheels are connected to the toothed belt transmission. The wire wheel swivel is installed between two groups of flying disc assemblies through a bearing. The clamping cylinder assembly clamps and brakes the toothed belt; the positioning pin assembly locks the large plate one; the sensor assembly is used to sense the rotation position of the toothed belt wheel and send a signal to the brake air brake. The motor slide assembly drives the toothed belt wheel to rotate, and the brake air brake realizes the braking of the toothed belt wheel. After the single strand of pay-off reaches a fixed length, the group-changing station is specified by the program, which can avoid the flying disc passing through the line path, and facilitate the automatic group-changing work of the robot. Reduce the labor intensity of the operator and improve the automation production level of the double-twist machine.

Description

Technical Field

[0001] The present invention relates to a wire pay-off machine for a double-twisting machine, and particularly to an automatic group-changing rotary wire pay-off machine for a double-twisting machine and a group-changing method. Background Art

[0002] At present, each enterprise is stepping up efforts to improve the automation level of production equipment, thereby enhancing the competitiveness of the enterprise. In a double-twisting machine with an external pay-off and internal take-up form, there is a rotary wire pay-off machine with flying wings that can rotate and pay off single strands, and then form strands through the double-twisting machine. After the single-strand pay-off reaches a fixed length, it is necessary to replace the wire pay-off spool, which is called wire pay-off group change. The rotary wire pay-off machine can store multiple single strands, and the number can reach 6 to 18 spools. During traditional wire pay-off group change, workers need to track and operate throughout the process, and the production efficiency cannot be maximized. Summary of the Invention

[0003] The present invention provides an automatic group-changing rotary wire pay-off machine for a double-twisting machine and a group-changing method. After the single-strand pay-off reaches a fixed length, the program designates the group-changing station, which can avoid the wire passing channel of the flying disc, facilitating the automatic group-changing work of the robot. It reduces the labor intensity of the operator and improves the automation level of the double-twisting machine production.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] An automatic group-changing rotary wire pay-off machine for a double-twisting machine includes a large disc one, a power support, a clamp-opening cylinder assembly, a positioning pin assembly, a motor slide assembly, a sensor assembly, a toothed belt pulley, a large gear, a toothed belt, a large disc two, a flying disc assembly, a wire wheel rotating frame, a single-strand spool, a core wire frame, a core strand spool, a clutch, a transmission shaft, a brake disc, a brake air brake, and a rotary main shaft. The rotary main shaft is fixed on the power support through bearings. The large disc one, the large gear, and the large disc two are fixed on the rotary main shaft. There are multiple flying disc assemblies, which are respectively installed on the large disc one and the large disc two through bearings. The flying disc assembly is fixedly connected to the toothed belt pulley and is driven to rotate by the toothed belt pulley. Multiple toothed belt pulleys are in transmission connection with the toothed belt. The wire wheel rotating frame is installed between two groups of opposite flying disc assemblies through bearings. The clamp-opening cylinder assembly is fixed on the power support to clamp and brake the toothed belt. The positioning pin assembly is fixed on the power support and locks the large disc one through plugging and unplugging actions. The sensor assembly is fixed on the power support to sense the rotation position of the toothed belt pulley and send a braking signal to the brake air brake. The core wire frame is fixed on the power support. The core strand spool makes a rotary motion on the core wire frame through a wire pay-off shaft. The single-strand spool makes a rotary motion on the wire wheel rotating frame through a wire pay-off shaft. The motor slide assembly is fixed on the power support and transmits power to the transmission shaft through the clutch to drive one of the toothed belt pulleys to rotate. The brake disc is fixed on the transmission shaft, and the brake air brake realizes the clamping action on the brake disc.

[0006] The clamping-opening cylinder assembly includes a clamping-opening cylinder, a cylinder base, a clamping-opening key, a positioning clamp, a clamp jaw, a first screw, a clamp spring, a clamp seat, and a clamp pin shaft. The clamping-opening cylinder is fixed on the cylinder base, and the clamping-opening key is fixed on the clamping-opening cylinder. When the clamping-opening cylinder makes an extending and retracting movement, it drives the clamping-opening key to move together. A chute is provided on the cylinder base, and the clamping-opening key makes a linear movement in the chute. The clamp jaw is fixed on the positioning clamp through the first screw. The two positioning clamps are arranged oppositely, and the positioning clamps are hinged on the clamp seat through the clamp pin shaft. A clamp spring is connected between the two positioning clamps. The clamp seat is fixed on the first large plate, and the toothed belt passes through the middle of the oppositely arranged clamp jaws.

[0007] The positioning pin assembly includes a positioning cylinder, a cylinder shaft rod, a transition flange, a positioning pin outer sleeve, a large plate positioning pin, and a positioning sleeve. The positioning cylinder is fixed on the positioning pin outer sleeve through the transition flange, and the positioning pin outer sleeve is fixed on the power support. The large plate positioning pin is fixed on the cylinder shaft rod and makes a linear movement in the positioning pin outer sleeve. The positioning sleeve is fixed on the first large plate and rotates with the first large plate.

[0008] The motor slide assembly includes a motor slide, an adjusting nut, a spring guide post, a clutch spring, a spring pad sleeve, a nut, a main motor, a clutch cylinder, and a top sleeve. The main motor is fixed on the motor slide, and the clutch is fixed on the main motor. The adjusting nut is connected to one end of the spring guide post through a thread, and the shoulder at the other end of the spring guide post cooperates with the nut to lock the spring guide post on the power support. The spring guide post passes through the motor slide and is slidably connected to the motor slide. The clutch spring is sleeved on the spring guide post. One end of the clutch spring abuts against the adjusting nut, and the other end of the clutch spring abuts against the motor slide. By tightening the adjusting nut, the clutch spring is compressed. The clutch cylinder is fixed on the motor slide, and the top sleeve is fixed on the clutch cylinder. With the extension and retraction of the cylinder, sliding guide mechanisms are provided on both sides of the main motor.

[0009] The sensor assembly includes a sensing cylinder, a sensing cylinder rod, a sensing support, a sensing sleeve, a displacement sensor, and an induction pin. The sensing cylinder is fixed on the power support through the sensing support. The displacement sensor is fixed on the sensing sleeve, and the sensing sleeve is fixed on the sensing cylinder rod and extends and retracts together with the sensing cylinder rod. There are 2 induction pins, which are evenly arranged and fixed on the toothed belt pulley.

[0010] The large gear is driven to rotate by a servo motor. The servo motor is fixed on the power support, and the motor gear is fixed on the end of the servo motor shaft. The motor gear meshes with the large gear for transmission.

[0011] The flying disc assembly includes a wire passing nozzle and a flying disc. The wire passing nozzle is fixed on both sides of the flying disc and rotates together with the flying disc.

[0012] A method for changing groups of an automatic group-changing rotary wire pay-off machine for a double-twisting machine, comprising:

[0013] 1) After the pay-off single strand reaches a fixed length, the system automatically issues a deceleration and stop command;

[0014] 2) After the speed of the flywheel assembly drops to a set value, the sensing cylinder in the sensor assembly extends the sensing cylinder rod, bringing the displacement sensor close to the sensing pin, and then sensing the position where the toothed belt pulley stops rotating. The displacement sensor slowly approaches the sensing pin. When it enters the sensing distance, a signal for the braking air brake is generated;

[0015] 3) The braking air brake clamps the brake disc. After clamping for 5 s, the braking air brake is released. At this time, the flywheel assembly stops rotating. This stop position is the group-changing position of the flywheel assembly. The wire passing channel at the group-changing position is horizontal relative to the position of the wire wheel rotating frame, and the sensing cylinder retracts the sensing cylinder rod;

[0016] The wire passing channel is horizontal relative to the position of the wire wheel rotating frame, which is convenient for replacing the single-strand spool; when changing groups at this position, the robot will not interfere with the wire passing channel when replacing the single-strand spool;

[0017] 4) The clamping cylinder drives the clamping key to retract. Under the action of the clamping pliers spring, the positioning clamping pliers drive the clamping pliers jaws to clamp the toothed belt. At this time, the flywheel assembly cannot rotate freely, and the position of the wire passing channel and the wire wheel rotating frame is relatively fixed;

[0018] 5) The clutch cylinder extends, the top sleeve contacts the power support, and reversely pushes the motor slide to slide. The main motor and the clutch slide together, realizing the separation of the main motor and the transmission system;

[0019] 6) The positioning cylinder retracts, and the cylinder shaft rod drives the large disc positioning pin to retract, releasing the positioning of the first large disc;

[0020] 7) The servo motor drives the motor gear to rotate, the motor gear drives the large gear to rotate, and transmits the power to the rotating main shaft; under the drive of the servo motor, the rotating main shaft rotates slowly, and then drives the first large disc and the second large disc to rotate and position together;

[0021] 8) After the manipulator replaces each single-strand spool, the servo motor drives the rotating main shaft to rotate, and the first large disc and the second large disc rotate slowly, rotating another wire wheel rotating frame to the group-changing position; when the first large disc rotates, the wire wheel rotating frame always remains horizontal, and the flywheel and the wire wheel rotating frame will rotate relatively; when each wire wheel rotating frame rotates to the group-changing position, the wire passing channel will be in the same horizontal position as the wire wheel rotating frame, thus facilitating group change;

[0022] 9) When the group-changing work of all single strands is completed, the operator needs to confirm on-site and issue a power-on reset command;

[0023] 10) The servo motor drives the rotating main shaft to rotate in the reverse direction, and the first large plate and the second large plate return to their original positions, so that the single-strand wire outlet channel corresponds to the wire collecting and distributing disc to resume its position;

[0024] 11) The positioning cylinder extends, and the cylinder rod drives the large plate positioning pin to extend. The positioning pin is inserted into the positioning sleeve to lock the position of the first large plate;

[0025] 12) The clamping cylinder drives the clamping key to extend, and the clamping key expands the positioning clamp so that the clamp jaws cannot clamp the toothed belt;

[0026] 13) The clutch cylinder retracts, and under the action of the clutch spring, the motor slide block slides forward; the main motor and the clutch slide together to realize the engagement of the main motor and the transmission system;

[0027] 14) The operator makes on-site confirmation and issues a startup instruction.

[0028] Compared with the existing technology, the beneficial effects of the present invention are:

[0029] 1) When changing the wire feeding group, the rotating wire feeder can perform semi-automatic group changing work.

[0030] 2) The present invention designates the group changing station by the program, which can avoid the flying disc wire passing channel and facilitate the automatic group changing work of the robot.

[0031] 3) Reduce the labor intensity of the operator and improve the automation production level of the double-twisting machine. Description of the Drawings

[0032] Figure 1 is a partial sectional axonometric view of the present invention.

[0033] Figure 2 is an axonometric view of the present invention.

[0034] Figure 3 is a schematic diagram of the mechanical transmission principle of the present invention.

[0035] Figure 4 is an exploded view of the clamping cylinder assembly of the present invention.

[0036] Figure 5 is an exploded view of the positioning pin assembly of the present invention.

[0037] Figure 6 is an exploded view of the motor slide block assembly of the present invention.

[0038] Figure 7 is an exploded view of the sensor assembly of the present invention.

[0039] Figure 8 is an exploded view of the flying disc assembly and the wire wheel carrier of the present invention.

[0040] In the figure: 1. First large disc, 2. Power support, 3. Clamping cylinder assembly, 4. Positioning pin assembly, 5. Motor slide assembly, 6. Sensor assembly, 7. Toothed belt pulley, 8. Servo motor, 9. Large gear, 10. Toothed belt, 11. Second large disc, 12. Flywheel assembly, 13. Support wheel, 14. Wire wheel rotating frame, 15. Single-strand spool, 16. Core wire frame, 17. Core strand spool, 18. Clutch, 19. Transmission shaft, 20. Brake disc, 21. Brake air brake, 22. Rotating main shaft, 301. Clamping cylinder, 302. Cylinder seat, 303. Clamping key, 304. Positioning clamp, 305. Clamp jaw, 306. Screw 1, 307. Clamp spring, 308. Clamp seat, 309. Clamp pin shaft, 310. Slide groove, 401. Positioning cylinder, 402. Cylinder shaft rod, 403. Transition flange, 404. Positioning pin outer sleeve, 405. Large disc positioning pin, 406. Positioning sleeve, 501. Screw 2, 502. Linear bearing, 503. Motor slide, 504. Alignment bar, 505. Adjusting nut, 506. Spring guide post, 507. Clutch spring, 508. Spring pad sleeve, 509. Nut, 510. Main motor, 511. Clutch cylinder, 512. Thrust sleeve, 601. Sensing cylinder, 602. Sensing cylinder rod, 603. Sensing support, 604. Sensing sleeve, 605. Displacement sensor, 606. Thin nut, 607. Induction pin, 1201. Thread guide, 1202. Flywheel, 1203. Bearing, 1204. Thread passage, 801. Motor gear, 1401. Pay-off shaft. Detailed implementation manners

[0041] The following further describes the implementation manners of the present invention in combination with specific embodiments:

[0042] As Figure 1 , Figure 2 and Figure 3 shown, an automatic group-changing rotary pay-off machine for a double-twisting machine includes a first large disc 1, a power support 2, a clamping cylinder assembly 3, a positioning pin assembly 4, a motor slide assembly 5, a sensor assembly 6, a toothed belt pulley 7, a large gear 9, a toothed belt 10, a second large disc 11, a flywheel assembly 12, a support wheel 13, a wire wheel rotating frame 14, a single-strand spool 15, a core wire frame 16, a core strand spool 17, a clutch 18, a transmission shaft 19, a brake disc 20, a brake air brake 21, and a rotating main shaft 22. The rotating main shaft 22 is installed on the power support 2 through a bearing, and the support wheel 13 is used to support the second large disc 11. The first large disc 1, the large gear 9, and the second large disc 11 are fixed on the rotating main shaft 22 and rotate together; there are multiple flywheel assemblies 12, which are respectively installed on the first large disc 1 and the second large disc 12 through bearings. The flywheel assembly 12 is fixedly connected to the toothed belt pulley 7 and is driven to rotate through the toothed belt pulley 7. Multiple toothed belt pulleys 7 are in transmission connection with the toothed belt 10. The wire wheel rotating frame 14 is installed between two sets of flywheel assemblies 12 arranged oppositely through a bearing 1203 (seeFigure 8 ) The frisbee assembly 12 rotates around the wire wheel carrier 14. The clamping cylinder assembly 3 is fixed on the power support 2 and is used for the clamping action of the toothed belt 10 to realize the clamping and braking of the toothed belt 10. The positioning pin assembly 4 is fixed on the power support 2 and locks the large disk 1 through the plugging and unplugging action to realize the action of locking the position of the large disk 1. The sensor assembly 6 is fixed on the power support 2 and is used to sense the rotation position of the toothed belt pulley 7 and send a braking signal to the braking air brake 21. The core wire frame 16 is fixed on the power support 2. The core strand spool 17 rotates on the core wire frame 16 through the wire feeding shaft, and the single-strand spool 15 rotates on the wire wheel carrier 14 through the wire feeding shaft 1401 (see Figure 8 ) The motor slide assembly 5 is fixed on the power support 2. The power is transmitted to the transmission shaft 19 through the clutch 18 and is used to drive one of the toothed belt pulleys 7 to rotate. The brake disc 20 is fixed on the transmission shaft 19, and the braking air brake 21 realizes the clamping action on the brake disc 20.

[0043] The number of toothed belt pulleys 7 is one more than the number of frisbee assemblies. The extra toothed belt pulley 7 is fixed on the transmission shaft 19 and rotates and stops together with the transmission shaft 19, and transmits the power to other toothed belt pulleys 7 through the toothed belt 10.

[0044] The toothed belt pulley 7 corresponding to and sensed by the sensor assembly 6 is the toothed belt pulley 7 connected to the transmission shaft 19.

[0045] See Figure 4 , the clamping cylinder assembly 3 includes a clamping cylinder 301, a cylinder seat 302, a clamping key 303, a positioning clamp 304, a clamp jaw 305, a screw 306, a clamp spring 307, a clamp seat 304, and a clamp pin 309. The clamping cylinder 301 is fixed on the cylinder seat 302, and the clamping key 303 is fixed on the clamping cylinder 301. When the clamping cylinder 301 makes an extending and retracting movement, it drives the clamping key 303 to move together. A sliding groove 310 is opened on the cylinder seat 302, and the clamping key 303 makes a linear movement in the sliding groove 310. The clamp jaw 305 is fixed on the positioning clamp 304 through the screw 306. The positioning clamps 304 are two and are arranged oppositely. The positioning clamps 304 are hinged on the clamp seat 308 through the clamp pins 309. A clamp spring 307 is connected between the two positioning clamps 304. The clamp seat 308 is fixed on the large disk 1, and the toothed belt 10 passes through the middle of the oppositely arranged clamp jaws 305.

[0046] When the clamping key 303 is extended, the clamping key 303 is inserted between the two oppositely arranged positioning clamps 304, and the two positioning clamps 304 are stretched open. There is also an open groove in the middle of the clamping key 303. At this time, the toothed belt 10 can pass between the two pairs of clamp jaws 305 and through the open groove in the middle of the clamping key 303; when the clamping key 303 is retracted, the clamping key 303 is withdrawn from the two oppositely arranged positioning clamps 304, and the two positioning clamps 304 are bitten together under the action of the clamp spring 307. At this time, the two pairs of clamp jaws 305 clamp the toothed belt 10.

[0047] See Figure 5 The locating pin assembly 4 includes a locating cylinder 401, a cylinder shaft 402, a transition flange 403, a locating pin sleeve 404, a large disk locating pin 405, and a locating sleeve 406. The locating cylinder 401 is fixed to the locating pin sleeve 404 through the transition flange 403. The locating pin sleeve 404 is fixed to the power bracket 2. The large disk locating pin 405 is fixed to the cylinder shaft 402 and makes a linear motion in the locating pin sleeve 404. The locating sleeve 406 is fixed to the large disk 1 and rotates with the large disk 1.

[0048] See Figure 6 The motor slide assembly 5 includes a motor slide 503, an adjusting nut 505, a spring guide column 506, a clutch spring 507, a spring washer 508, a nut 509, a main motor 510, a clutch cylinder 511, and a top sleeve 512. The main motor 510 is fixed on the motor slide 503, and the clutch 18 is fixed on the main motor 510. The adjusting nut 505 is connected to one end of the spring guide column 506 through a thread, and the shoulder of the other end of the spring guide column 506 cooperates with the nut 509 to lock the spring guide column 506 on the power bracket 2. The spring guide column 506 passes through the motor slide 503 and is slidably connected with the motor slide 503. The clutch spring 507 is sleeved on the spring guide column 506. One end of the clutch spring 507 is in contact with the adjusting nut 505, and the other end of the clutch spring 507 is in contact with the motor slide 503. The clutch spring 507 is compressed by tightening the adjusting nut 505. The clutch cylinder 511 is fixed on the motor slide 503. The top sleeve 512 is fixed on the clutch cylinder 511. As the cylinder extends and retracts, sliding guide mechanisms are provided on both sides of the main motor 510. When the top sleeve 512 is extended, it presses the power bracket 2, pushes the motor slide 503 out in the opposite direction, and separates the main motor 510 from the transmission shaft 19 through the clutch 18.

[0049] The sliding guide mechanism includes screw 2 501, linear bearing 502, and guide bar 504. The linear bearing 502 is fixed to the motor slide 503 through screw 2 501. The guide bar 504 is fixed to the power bracket 2. The linear bearing 502 performs linear motion on the guide bar 504.

[0050] See Figure 7, the sensor assembly 6 includes a sensing cylinder 601, a sensing cylinder rod 602, a sensing bracket 603, a sensing sleeve 604, a displacement sensor 605, a thin nut 606, and an induction pin 607. The sensing cylinder 601 is fixed to the sensing bracket 603 through an end thread, the sensing bracket 603 is fixed to the power bracket 2, the displacement sensor 605 is fixed to the sensing sleeve 604 through a thread, the thin nut 606 is used to lock the position of the displacement sensor 605, the sensing sleeve 604 is fixed to the sensing cylinder rod 602 through a thread, and extends and retracts together with the sensing cylinder rod 602. There are 2 induction pins 607, which are evenly arranged and fixed on the toothed belt pulley 7.

[0051] The displacement sensor 605 senses the position of the induction pin 607, triggers the braking air brake 21 to brake the transmission shaft 19, and stops the toothed belt pulley 7 from rotating. This position is the position where the manipulator changes the group of the wire pay-off machine. When the toothed belt pulley 7 stops rotating, the wire passing nozzle 1201 (wire passing channel) is horizontal relative to the wire wheel carrier 14.

[0052] See Figure 1 , Figure 3 , the large gear 9 is driven to rotate by the servo motor 8. The servo motor 8 is fixed to the power bracket 2, the motor gear 801 is fixed to the shaft end of the servo motor 8, and the motor gear 801 meshes with the large gear 9 for transmission.

[0053] See Figure 8 , the flying disc assembly 12 includes a wire passing nozzle 1201 and a flying disc 1202. The wire passing nozzle 1201 is fixed on both sides of the flying disc 1202 and rotates together with the flying disc 1202.

[0054] A method for changing the group of an automatic group-changing rotary wire pay-off machine for a double-twisting machine includes:

[0055] 1) When the length of the single-strand wire pay-off reaches a fixed length, the system automatically issues a deceleration and stop command;

[0056] 2) When the speed of the flying disc assembly 12 drops to a set value, the sensing cylinder 601 in the sensor assembly 6 extends the sensing cylinder rod 602, so that the displacement sensor 605 approaches the induction pin 607, and then senses the position where the toothed belt pulley 7 stops rotating. The displacement sensor 605 slowly approaches the induction pin 607. When it enters the induction distance, a signal for the braking air brake 21 is generated;

[0057] 3) The braking air brake 21 clamps the brake disc 20. After clamping for 5 s, the braking air brake 21 is released. At this time, the flying disc assembly 12 stops rotating. This stop position is the group-changing position of the flying disc assembly 12. The wire passing channel at the group-changing position is horizontal relative to the position of the wire wheel carrier 14, and the sensing cylinder 601 retracts the sensing cylinder rod 602;

[0058] The wire passing channel is at the same horizontal level as the wire wheel rotating frame 14, which is convenient for the manipulator to replace the single-strand spool 15; when changing groups at this position, the robot will not interfere with the wire passing channel when replacing the single-strand spool 15.

[0059] 4) The clamping cylinder 301 drives the clamping key 303 to retract. Under the action of the clamping pliers spring 307, the positioning clamping pliers 304 drive the clamping pliers jaws 305 to clamp the toothed belt 10. At this time, the flywheel assembly 12 cannot rotate freely, and the position of the wire passing channel and the wire wheel rotating frame 14 is relatively fixed.

[0060] 5) The clutch cylinder 511 extends, the top sleeve 512 contacts the power support 2, and reversely pushes the motor slide 503 to slide. The main motor 510 and the clutch 18 slide together, realizing the separation of the main motor 510 from the transmission system.

[0061] 6) The positioning cylinder 401 retracts, and the cylinder rod 402 drives the large disk positioning pin 405 to retract, releasing the positioning of the large disk 1.

[0062] 7) The servo motor 8 drives the motor gear 801 to rotate. The motor gear 801 drives the large gear 9 to rotate, transmitting power to the rotating main shaft 22; driven by the servo motor 8, the rotating main shaft 22 rotates slowly, and then drives the large disk 1 and the large disk 2 11 to rotate and position together.

[0063] 8) After the manipulator replaces each single-strand spool 15, the servo motor 8 drives the rotating main shaft 22 to rotate, and the large disk 1 and the large disk 2 11 rotate slowly, rotating another wire wheel rotating frame 14 to the group changing position; when the large disk 1 rotates, the wire wheel rotating frame 14 always remains horizontal, and the flywheel 1202 and the wire wheel rotating frame 14 will rotate relative to each other; when each wire wheel rotating frame 14 rotates to the group changing position, the wire passing channel will maintain the same horizontal position as the wire wheel rotating frame 14, thereby facilitating group changing.

[0064] 9) When all the single-strand group changing operations are completed, the operator needs to confirm on-site and issue an instruction for power-on reset.

[0065] 10) The servo motor 8 drives the rotating main shaft 22 to rotate in the reverse direction, and the large disk 1 and the large disk 2 11 return to their original positions, restoring the corresponding position of the single-strand wire outlet channel and the wire collecting and distributing disk.

[0066] 11) The positioning cylinder 4 extends, the cylinder rod 402 drives the large disk positioning pin 405 to extend, and the positioning pin 405 is inserted into the positioning sleeve 406 to lock the position of the large disk 1.

[0067] 12) The clamping cylinder 301 drives the clamping key 303 to extend, and the clamping key 303 expands the positioning clamping pliers 304, so that the clamping pliers jaws 305 cannot clamp the toothed belt 10.

[0068] 13) The clutch cylinder 511 retracts. Under the action of the clutch spring 507, the motor slide 503 slides forward; the main motor 510 slides together with the clutch 18, realizing the engagement of the main motor 510 with the transmission system;

[0069] 14) The operator makes on-site confirmation and issues a start-up command.

Claims

1. An automatic group-changing rotary wire pay-off machine for a double-twisting machine, characterized in that, It includes a large plate 1, a power support, a clamping cylinder assembly, a positioning pin assembly, a motor slide assembly, a sensor assembly, a toothed belt pulley, a large gear, a toothed belt, a large plate 2, a flying disc assembly, a wire wheel rotating frame, a single-strand spool, a core wire frame, a core strand spool, a clutch, a transmission shaft, a brake disc, a brake air brake, and a rotating main shaft. The rotating main shaft is fixed on the power support through bearings. The large plate 1, the large gear, and the large plate 2 are fixed on the rotating main shaft. There are multiple flying disc assemblies, which are respectively installed on the large plate 1 and the large plate 2 through bearings. The flying disc assemblies are fixedly connected to the toothed belt pulley and are driven to rotate by the toothed belt pulley. Multiple toothed belt pulleys are in transmission connection with the toothed belt. The wire wheel rotating frame is installed between two sets of oppositely arranged flying disc assemblies through bearings. The clamping cylinder assembly is fixed on the power support to clamp and brake the toothed belt. The positioning pin assembly is fixed on the power support and locks the large plate 1 through plugging and unplugging actions. The sensor assembly is fixed on the power support to sense the rotation position of the toothed belt pulley and send a braking signal to the brake air brake. The core wire frame is fixed on the power support. The core strand spool makes a rotating motion on the core wire frame through a wire releasing shaft. The single-strand spool makes a rotating motion on the wire wheel rotating frame through a wire releasing shaft. The motor slide assembly is fixed on the power support and transmits power to the transmission shaft through a clutch to drive one of the toothed belt pulleys to rotate. The brake disc is fixed on the transmission shaft, and the brake air brake realizes the clamping action on the brake disc. The clamping cylinder assembly includes a clamping cylinder, a cylinder seat, a clamping key, a positioning clamp, a clamp jaw, a screw 1, a clamp spring, a clamp seat, and a clamp pin. The clamping cylinder is fixed on the cylinder seat, and the clamping key is fixed on the clamping cylinder. When the clamping cylinder makes an extending and retracting motion, it drives the clamping key to move together. A chute is opened on the cylinder seat, and the clamping key makes a linear motion in the chute. The clamp jaw is fixed on the positioning clamp through the screw 1. There are two positioning clamps arranged oppositely. The positioning clamps are hinged on the clamp seat through the clamp pin. A clamp spring is connected between the two positioning clamps. The clamp seat is fixed on the large plate 1, and the toothed belt passes through the middle of the oppositely arranged clamp jaws. The positioning pin assembly includes a positioning cylinder, a cylinder shaft rod, a transition flange, a positioning pin outer sleeve, a large plate positioning pin, and a positioning sleeve. The positioning cylinder is fixed on the positioning pin outer sleeve through the transition flange, and the positioning pin outer sleeve is fixed on the power support. The large plate positioning pin is fixed on the cylinder shaft rod and makes a linear motion in the positioning pin outer sleeve. The positioning sleeve is fixed on the large plate 1 and rotates with the large plate 1.

2. The automatic group-changing rotary wire pay-off machine for a double-twisting machine according to claim 1, characterized in that, The motor slide assembly includes a motor slide, an adjusting nut, a spring guide post, a clutch spring, a spring bushing, a nut, a main motor, a clutch cylinder, and a top sleeve. The main motor is fixed on the motor slide, and the clutch is fixed on the main motor. The adjusting nut is connected to one end of the spring guide post by a thread. The shoulder at the other end of the spring guide post cooperates with the nut to lock the spring guide post on the power support. The spring guide post passes through the motor slide and is slidably connected to the motor slide. The clutch spring is sleeved on the spring guide post. One end of the clutch spring abuts against the adjusting nut, and the other end of the clutch spring abuts against the motor slide. By tightening the adjusting nut, the clutch spring is compressed. The clutch cylinder is fixed on the motor slide, and the top sleeve is fixed on the clutch cylinder. As the cylinder extends and retracts, sliding guide mechanisms are provided on both sides of the main motor.

3. The automatic group-changing rotary wire pay-off machine for a double-twisting machine according to claim 1, wherein, The sensor assembly includes a sensing cylinder, a sensing cylinder rod, a sensing bracket, a sensing sleeve, a displacement sensor, and an induction pin. The sensing cylinder is fixed on the power support through the sensing bracket. The displacement sensor is fixed on the sensing sleeve. The sensing sleeve is fixed on the sensing cylinder rod and extends and retracts together with the sensing cylinder rod. There are 2 induction pins, which are evenly arranged and fixed on the toothed belt pulley.

4. The automatic group-changing rotary wire pay-off machine for a double-twisting machine according to claim 1, wherein The large gear is driven to rotate by a servo motor. The servo motor is fixed on the power support. The motor gear is fixed on the end of the servo motor shaft. The motor gear meshes with the large gear for transmission.

5. An automatic group-changing rotary wire pay-off machine for a double-twisting machine, characterized in that, The flying disc assembly includes a wire passing nozzle and a flying disc. The wire passing nozzle is fixed on both sides of the flying disc and rotates together with the flying disc.

6. A method for changing groups of an automatic group-changing rotary wire pay-off machine for a double-twisting machine according to any one of claims 1-5, characterized in that, Including: 1) When the set length of the single-strand wire pay-off is reached, the system issues a deceleration and stop command. 2) When the speed of the flying disc assembly drops to the set value, the sensing cylinder in the sensor assembly extends the sensing cylinder rod, so that the displacement sensor approaches the induction pin, and then senses the position where the toothed belt pulley stops rotating. When the displacement sensor approaches the induction pin and enters the sensing distance, a signal for the braking air brake is generated. 3) The braking air brake clamps the brake disc, and the flying disc assembly stops rotating. This stop position is the changing group position of the flying disc assembly. The wire passing channel at the changing group position is horizontal relative to the position of the wire wheel rotating frame. The sensing cylinder retracts the sensing cylinder rod. 4) The opening clamp cylinder drives the opening clamp key to retract. Under the action of the clamp spring, the positioning clamp drives the clamp jaws to clamp the toothed belt. At this time, the flying disc assembly cannot rotate freely, and the position of the wire passing channel and the wire wheel rotating frame is relatively fixed. 5) The clutch cylinder extends, and the top sleeve contacts the power support, and reversely pushes the motor slide to slide. The main motor and the clutch slide together to realize the separation of the main motor and the transmission system. 6) The positioning cylinder retracts, and the cylinder shaft rod drives the large disc positioning pin to retract, and the positioning of the first large disc is released. 7) The servo motor drives the motor gear to rotate, and the motor gear drives the large gear to rotate, and transmits the power to the rotating main shaft. Driven by the servo motor, the rotating main shaft rotates, and then drives the first large disc and the second large disc to rotate and position together. 8) After replacing each single-strand spool, the servo motor drives the rotating spindle to rotate, and the first large disc and the second large disc rotate, rotating the other wire spool carrier to the group-changing position; when the first large disc rotates, the wire spool carrier always remains horizontal, and there will be relative rotation between the flying disc and the wire spool carrier; when each wire spool carrier rotates to the group-changing position, the wire passing channel will maintain the same horizontal position as the wire spool carrier. 9) When the group-changing work for all single strands is completed, perform a power-on reset. 10) The servo motor drives the rotating spindle to rotate in the reverse direction, and the first large disc and the second large disc return to their original positions, restoring the corresponding positions of the single-strand wire outlet channel and the wire collecting and distributing disc. 11) The positioning cylinder extends, and the cylinder rod drives the large disc positioning pin to extend. The positioning pin is inserted into the positioning sleeve to lock the position of the first large disc. 12) The clamping-opening cylinder drives the clamping-opening key to extend, and the clamping-opening key expands the positioning clamp to prevent the clamp jaws from clamping the toothed belt. 13) The clutch cylinder retracts, and under the action of the clutch spring, the motor slide block slides forward; the main motor slides together with the clutch to engage the main motor with the transmission system. 14) Power on.

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