CN202642986U

CN202642986U - Winding length fixing control system in chemical fiber production

Info

Publication number: CN202642986U
Application number: CN 201220259909
Authority: CN
Inventors: 艾学忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-04
Filing date: 2012-06-04
Publication date: 2013-01-02
Anticipated expiration: 2022-06-04

Abstract

A winding length fixing control system in chemical fiber production is composed of a plurality of control units connected with an industrial personal computer (IPC). Each control unit is composed of a silk cutting control mechanism, a turn number detection photoelectric sensor and a length fixing controller. The length fixing controller comprises a system on chip, a silk cutting driving module, a turn number measuring module, a communication interface module, a liquid crystal module, a button module and a switch power supply. A communication interface module of each control unit is connected with the IPC through a RS485 field bus, and a keyboard, a displayer and an alerter are connected with the IPC. The computer observation and control technology is used by the winding length fixing control system in the chemical fiber production to measure the length of silk threads so that the error is small, the precision of automatic length fixing is high, and waste of the silk threads can be reduced.

Description

Reeling Length Control system during chemical fibre is produced

Technical field

The utility model relates to a kind of reeling Length Control system, belongs to the chemical fibre production field.

Background technology

At present, winding machine is not joined the reeling length control device mostly in the domestic viscose filament yarn production, so that the upper silk winding length of a cylinder differs, when following process, the little cylinder silk of more residue often occurs, causes very large waste, particularly exports silk, and this problem is particularly outstanding.

The reeling fixed length method that can find on document roughly has three kinds: check weighing method, measure and timing method.All there is defective in various degree in these three kinds of methods.The check weighing method is to come reduced length by the mode that the silk bucket is weighed, because precursor moisture difference is large, uses check weighing method metering wire length error to reach more than 3%.Measure is to calculate wire length by the mode of the physical dimension of measuring the silk bucket, and owing to there being the out-of-shape problem, physical dimension itself just is difficult to survey accurate, so the measure use is few.Timing method is by the reeling time measurement is calculated length, because the variation of screw process friction and inertia power causes survey precision also not high.

For promoting viscose filament yarn spooler technological advance, overcome the semicontinuous deficiency of spinning spinning machine, domestic spinning equipment producer is also just at the new spinning equipment of active development.These new installations make China's viscose filament yarn production level that larger lifting arranged, but the follow-up cylinder technique of beating still rests on traditional method, does not well solve reeling bobbin fixed length problem.

Summary of the invention

The purpose of this utility model provides reeling Length Control system in a kind of chemical fibre production, and it is little that this control system uses technique of computer measurement and control to measure the wire length error, and the automatic cut-to-length control accuracy is high, can reduce the silk thread waste.

The technical solution of the utility model is: reeling Length Control system during chemical fibre is produced, it is characterized in that, this system is comprised of the control unit that several are connected with industrial computer respectively, each control unit is by the fracture of wire control mechanism, the number of turn detects opto-electronic pickup, length-fixed controller for drawing forms, described length-fixed controller for drawing has SOC(system on a chip) (C8051F410), the fracture of wire driver module, number of turn metering module, communication interface modules, Liquid Crystal Module, key-press module and Switching Power Supply, wherein Switching Power Supply is connected with each parts of length-fixed controller for drawing provides power supply, number of turn metering module input detects opto-electronic pickup with the number of turn and is connected by signal wire (SW), number of turn metering module mouth is connected by signal wire (SW) with SOC(system on a chip) (C8051F410), fracture of wire driver module input end is connected by signal wire (SW) with SOC(system on a chip) (C8051F410), fracture of wire driver module mouth is connected by signal wire (SW) with the fracture of wire control mechanism, Liquid Crystal Module, key-press module is connected with SOC(system on a chip) (C8051F410) respectively by signal wire (SW), SOC(system on a chip) (C8051F410) is connected with communication interface modules, the communication interface modules of each control unit is connected keyboard by the RS485 fieldbus respectively with industrial computer, telltale, annunciator is connected with industrial computer respectively.

The utility model technology has been used the computing machine Length Control of playing cylinder in the realization chemical-fibres filaments productions such as Automatic Measurement Technique, Eltec, field bus technique, Computer Control Technology, configuration programming.Owing to use the method for mathematical modeling and error analysis, measure the filament length degree by measuring the reel rotation number of turn, the silk that statistics and analysis test is obtained on cylinder the winding number of turn and the data of length Relations Among, establish the math modeling between the reeling number of turn and the length, the error rule that finds reeling position and fiber number to cause, control and measurement data to any ingot position can realize the online error correction of computing machine, broken through traditional check weighing method, measure and timing method are measured the limitation of filament length degree method, on the reeling bucket of 160000m, be reduced in the 2000m through the actual measurement fixed length error.

Description of drawings

Fig. 1 is reeling Length Control system principle diagram during the utility model chemical fibre is produced.

Fig. 2 is the functional block diagram of length-fixed controller for drawing among Fig. 1.

The specific embodiment

Through the research of continuous yarn spinning technique during chemical fibre is produced with to the winding machine construction analysis, and the statistics of previous experiments data and processing, the reeling Length Control system of design is as shown in Figure 1.In Fig. 1, reeling Length Control system during chemical fibre is produced, formed by several control units that are connected with industrial computer respectively, each control unit is by the fracture of wire control mechanism, the number of turn detects opto-electronic pickup, length-fixed controller for drawing forms, described length-fixed controller for drawing has SOC(system on a chip) (C8051F410), the fracture of wire driver module, number of turn metering module, communication interface modules, Liquid Crystal Module, key-press module and Switching Power Supply, wherein Switching Power Supply is connected with each parts of length-fixed controller for drawing provides power supply, number of turn metering module input detects opto-electronic pickup with the number of turn and is connected by signal wire (SW), number of turn metering module mouth is connected by signal wire (SW) with SOC(system on a chip) (C8051F410), fracture of wire driver module input end is connected by signal wire (SW) with SOC(system on a chip) (C8051F410), fracture of wire driver module mouth is connected by signal wire (SW) with the fracture of wire control mechanism, Liquid Crystal Module, key-press module is connected with SOC(system on a chip) (C8051F410) respectively by signal wire (SW), SOC(system on a chip) (C8051F410) is connected with communication interface modules, the communication interface modules of each control unit is connected keyboard by the RS485 fieldbus respectively with industrial computer, telltale, annunciator is connected with industrial computer respectively.Described SOC(system on a chip) (C8051F410) has online error correction routine, and this program is to work out according to the math modeling of the reeling number of turn of establishing with the method for mathematical modeling and error analysis and length Relations Among.During work, corresponding ingot position silk cylinder rotates start or shuts down action on the fracture of wire control mechanism application cylinder handset, and the number of turn detects the rotation number of turn of photosensors record ingot position silk cylinder.The rotation number of turn of corresponding ingot position silk cylinder on the winding machine that length-fixed controller for drawing detects opto-electronic pickup, and will rotate the online error correction routine of number of turn substitution, after error correction, converse the upper wire length of current silk cylinder.Length-fixed controller for drawing is uploaded to industrial computer PC with wire length numerical value by the RS485 fieldbus again, and PC is moving monitoring and control management software at industrial computer, can show the length data that the length-fixed controller for drawing on each ingot position is uploaded by telltale.In addition; industrial computer PC can arrange operating personal by the keyboard input manufacturing parameter (mainly refers to silk cylinder specification; this specification determines filature silk cylinder wire length) under pass to length-fixed controller for drawing; when the silk cylinder silk thread that twines on the ingot position reaches when dispatching from the factory specification value; length-fixed controller for drawing sends halt instruction to the fracture of wire control mechanism; the coiling action of fracture of wire control mechanism control ingot position silk cylinder stops, and reports industry PC, produces the silk cylinder that sound and light alarm prompting post worker more renews.Realize the Length Control of winding machine in the chemical-fibres filaments production.

Claims

1. reeling Length Control system during chemical fibre is produced, it is characterized in that, this system is comprised of the control unit that several are connected with industrial computer respectively, each control unit is by the fracture of wire control mechanism, the number of turn detects opto-electronic pickup, length-fixed controller for drawing forms, described length-fixed controller for drawing has SOC(system on a chip), the fracture of wire driver module, number of turn metering module, communication interface modules, Liquid Crystal Module, key-press module and Switching Power Supply, wherein Switching Power Supply is connected with each parts of length-fixed controller for drawing provides power supply, number of turn metering module input detects opto-electronic pickup with the number of turn and is connected by signal wire (SW), number of turn metering module mouth is connected by signal wire (SW) with SOC(system on a chip), fracture of wire driver module input end is connected by signal wire (SW) with SOC(system on a chip), fracture of wire driver module mouth is connected by signal wire (SW) with the fracture of wire control mechanism, Liquid Crystal Module, key-press module is connected with SOC(system on a chip) respectively by signal wire (SW), SOC(system on a chip) is connected with communication interface modules, the communication interface modules of each control unit is connected keyboard by the RS485 fieldbus respectively with industrial computer, telltale, annunciator is connected with industrial computer respectively.