CN101823651A

CN101823651A - Spun yarn-winding electronic type cam device for rotor spinning machine

Info

Publication number: CN101823651A
Application number: CN201010156230A
Authority: CN
Inventors: 朱纯胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-26
Filing date: 2010-04-26
Publication date: 2010-09-08

Abstract

The invention discloses a spun yarn-winding electronic type cam device for a rotor spinning machine, which consists of an electronic control system and a mechanical driving system. The electronic control system consists of a display screen, a programmable logic controller PLC, a servo motor driver and a rotary encoder which are connected with each other through data lines and lead wires; and the mechanical driving system consists of a servo motor, a synchronous belt and a guide slide block, wherein the servo motor runs under the order of the electronic control system, and a yarn-guiding shaft is driven by the synchronous belt and the guide slide block to move by means of reciprocating straight line to wind the spun yarn. The cam device builds a mathematical model on the basis of the motion curves of a flat cable of a mechanical cam in the prior art, programs a control procedure, forms into the electronic control system, and controls the motion status of the servo motor under the control of a servo system, thereby not only having fast spun yarn-winding speed and high quality, but also conveniently implementing the best winding of different yarn counts.

Description

Spun yarn-winding electronic type cam device for rotor spinning machine

Technical field

What the present invention relates to is weaving spun yarn-winding shaped device, particularly a kind of spun yarn-winding electronic type cam device for rotor spinning machine.

Background technology

All spun yarns must be wound into the parent roll yarn for satisfying follow-up woven requirement.The tube yarn has the motion of both direction in forming process: the winding displacement motion of traversing that is yarn at tube yarn Width, one is the coiling motion of tin yarn rotation, and yarn is wound on back and forth with the shape of helix line in this two motions synthetic and forms a tube yarn on the yarn tube.In order to guarantee the reliability of follow-up dyeing and unwinding, yarn lap wound and tube yarn hard-edge can not appear in the tube yarn in forming process.

Existing tube yarn forms machinery two kinds, i.e. slot-cylinder type and cam reciprocation type.The no reciprocation type motion of drum winding machinery, groove drum is finished the winding displacement and the coiling of yarn simultaneously, physical shock is little, winding speed is fast, but the groove drum sole mass is bigger, and long vehicle can't central driving, can only adopt single ingot transmission, and this drum winding is bigger to the damage of yarn, and cone yarn forming is poor, and bad tube rate is higher; The guide of cam reciprocation type and the motion of reeling separate, and little to the yarn damage, cone yarn forming is good, and the light weight of Wound-up roller helps the long vehicle central driving, but owing to there is the reciprocating physical shock of cam, therefore are unfavorable for realizing high-speed winding.What present spun yarn high-speed winding in the world adopted is slot-cylinder type, and the highest winding speed can reach 2500 meters/minute; What the low speed spun yarn-winding adopted is the cam reciprocation type, and the highest winding speed is 220 meters/minute.Domestic in China, the highest winding speed of this dual mode is respectively 1500 meters/minute and 150 meters/minute.

Summary of the invention

The objective of the invention is to propose a kind of spun yarn-winding electronic type cam device for rotor spinning machine, it not only can overcome the deficiency of existing cam reciprocation type low-speed running, and can collect the strong point of slot-cylinder type and two kinds of winding machinery devices of cam-type, realize the moulding of spun yarn high-speed winding.

The technical scheme that realizes above-mentioned purpose is: spun yarn-winding electronic type cam device for rotor spinning machine, it is made up of electronic control system and machine driven system.Described electronic control system is made up of read-out, Programmable Logic Controller PLC, motor servo driver, rotary encoder, read-out, Programmable Logic Controller PLC, motor servo driver connect by data line successively, and lead is connected between PLC and the rotary encoder; Described machine driven system mainly is made up of servomotor, synchronous band, guide runner, servomotor is fixedly mounted on the frame, the band cover is connected in the belt wheel of servomotor and an end of guide runner synchronously, the guide runner other end is fixed on the guide axle, servomotor turns round under the instruction of electronic control system, drive the guide axle by synchronous band and guide runner and do linear reciprocating motion, realize the spun yarn high-speed winding.

In above-mentioned electronic control system, but the miles of relative movement that read-out display standard helical pitch, angle and anti-hard-edge take place, and can adjust shown data by the function key on the touch display screen, to adjust data then and supply with Programmable Logic Controller PLC, Programmable Logic Controller PLC gathers wireline reel speed by rotary encoder, behind sequential operation, send movement instruction again, drive the servomotor running to motor servo driver;

According to technique scheme, a tension wheel and adjusting screw(rod) are installed on the frame of the same planimetric position of servomotor belt wheel, the band cover is connected on the belt wheel and tension wheel of servomotor synchronously, and an end of guide runner is fixed on the midway location of synchronous band.Like this, the tensile force of synchronous band can be adjusted by adjusting screw(rod), helps the stable and accurate of guide axle motion.

Electronic control system of the present invention is by setting up math modeling with the winding displacement curve movement of mechanical cam in the prior art, according to this math modeling establishment Control Software, and set up the curve movement of servomotor, make motion (back and forth movement, prevent the variable-speed motion of yarn lap wound and prevent that yarn from rolling out axially traversing of the existing hard-edge) state of guide axle reach best synthetic effect by Fu control again, realized the accurate winding displacement of tube yarn.

The invention has the advantages that: 1. reduced physical shock and mechanical wear, increased substantially winding speed, made the long vehicle maximum speed of transmission can reach 400 meters/minute, single ingot transmission maximum speed can reach 2300 meters/minute; 2. can directly adjust angle, standard lead and anti-hard-edge parameter by read-out, the convenient the best of yarn with different that realizes is reeled, and is convenient to realize equipment automatization control simultaneously; 3. mechanical driving part is simple in structure, is convenient to care and maintenance.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the movement profiles of servomotor.

Fig. 2 is a programming control block diagram of the present invention.

Fig. 3 is the front organigram of one embodiment of the invention.

Fig. 4 is a birds-eye view embodiment illustrated in fig. 3.

Among the figure: 1. control box, 2. frame, 3. servomotor, 4. electrical machine belt pulley, 5. band, 6. guide runner, 7. guide axle, 8. tension wheel, 9. plain bearing housing, 10. adjusting screw(rod) synchronously.

The specific embodiment

As depicted in figs. 1 and 2, originally the electronic control system that is invention is by the winding displacement curve movement of mechanical cam in the prior art shown in Figure 1 is set up a math modeling, according to the standard lead L in this math modeling, the displacement Δ of anti-hard-edge, the winding displacement speed V of angle α and winding speed computing is compiled into control program PLC, when PLC receives the standard lead L that read-out sends, the instruction of angle α and displacement Δ and the winding speed that collects by rotary encoder, behind sequential operation, send operating instruction (as shown in Figure 2) to motor servo driver.Curve among Fig. 1 shows: yarn guiding speed and guide traverse are constant in each round traverse (minor cycle), and adjacent 10 minor cycle yarn guiding speeds and guide traverse are inequality, yarn guiding speed the standard yarn guiding speed ± 10% change, adjacent minor cycle helical pitch differs Δ/10, continuous 10 minor cycles constitute a large period, large period circulates, and just can reach picture disruption and anti-edge-hardening function.

In Fig. 3 and embodiment shown in Figure 4, machine driven system mainly by servomotor 3, be with 5 synchronously, guide runner 6, tension wheel 8 and adjusting screw(rod) 10 form.Servomotor 3 and tension wheel 8 are installed on the frame 2, be connected on the belt wheel 4 and tension wheel 8 of servomotor with 5 covers synchronously, guide runner 6 one ends are fixed on to be with on 5 synchronously, the other end and guide axle 7 are fixing, adjusting screw(rod) 10 is positioned at an end of frame 2 and is connected with the axle sleeve of tension wheel 8, be used to adjust the tensile force of synchronous band, guide axle 7 two ends are supported by two plain bearing housings on the frame 9.Servomotor 3 moves after receiving control system PLC driving command, and guide axle 7 is done linear reciprocating motion under synchronously with 5 drive.

Because guide axle 7 is connecting guide bars all on the rotor spinning machine, therefore, the guide bar of car load will be implemented winding displacement with the motion of guide axle 7 on the rotor spinning machine.

Claims

1. spun yarn-winding electronic type cam device for rotor spinning machine, it is made up of electronic control system and machine driven system, described electronic control system is made up of read-out, Programmable Logic Controller PLC, motor servo driver, rotary encoder, read-out, Programmable Logic Controller PLC, motor servo driver connect by data line successively, and lead is connected between PLC and the rotary encoder; Described machine driven system mainly is made up of servomotor (3), synchronous band (5), guide runner (6), it is characterized in that: servomotor (3) is fixedly mounted on the frame (2), band (5) cover is connected in the belt wheel (4) of servomotor and an end of guide runner (6) synchronously, guide runner (6) other end is fixed on the guide axle (7), and servomotor turns round under the instruction of electronic control system.

2. spun yarn-winding electronic type cam device for rotor spinning machine according to claim 1, it is characterized in that: on described frame, with the same planimetric position of servomotor belt wheel a tension wheel (8) and adjusting screw(rod) (10) are installed, described synchronous band (5) cover is connected on the belt wheel (4) and tension wheel (8) of servomotor, and an end of guide runner (6) is fixed on the midway location of synchronous band (5).

3. spun yarn-winding electronic type cam device for rotor spinning machine according to claim 1, it is characterized in that: but the miles of relative movement that read-out display standard helical pitch, angle and anti-hard-edge take place, and can adjust shown data by the function key on the touch display screen, to adjust data then and supply with Programmable Logic Controller PLC, Programmable Logic Controller PLC gathers wireline reel speed by rotary encoder, again behind sequential operation, send movement instruction to motor servo driver, drive the servomotor running.

4. spun yarn-winding electronic type cam device for rotor spinning machine according to claim 1, it is characterized in that: the winding displacement curve movement according to mechanical cam is set up math modeling, according to this math modeling establishment Control Software, and set up the curve movement of servomotor, make the state of kinematic motion of guide axle reach synthetic effect by Fu control again, realize the accurate winding displacement of tube yarn.