CN201265076Y

CN201265076Y - Warp tension control system for fabric manufacture equipment

Info

Publication number: CN201265076Y
Application number: CNU2008201621678U
Authority: CN
Inventors: 张森林; 吴群民; 张荣臻
Original assignee: Hangzhou Jingwei Automation Co Ltd; Zhejiang University ZJU
Current assignee: Hangzhou Jingwei Automation Co Ltd; Zhejiang University ZJU
Priority date: 2008-08-07
Filing date: 2008-08-07
Publication date: 2009-07-01
Anticipated expiration: 2018-08-07

Abstract

The utility model discloses a warp tension control system of a weaving device. In the technical proposal, a warp let-off curve controller is respectively connected with a main controller, a conversion module and an encoder; and a tension sensor is connected with the conversion module. For the connection of the internal module of the warp let-off curve controller, a first ARM embedded processor is respectively connected with a first DC/DC converter, a first reset circuit, a first JTAG interface, a first external expansion program memory, a first external expansion data memory, an auxiliary memory, a first real-time clock, a first RS232 drive and a control platform IO port; the first RS232 drive is connected with a first RS232 interface; and the first DC/DC converter is connected with a first power supply. The utility model can satisfy the requirements of the high-speed loom, prevent the starting marks, and realize the functions of varying weft density and stopping rolling operation of the special trademark machine and the tie cloth jacquard.

Description

A kind of warp tension control system that is used for fabric manufacture equipment

Technical field

The utility model relates to tension control system, relates in particular to a kind of warp tension control system that is used for fabric manufacture equipment.

Background technology

Warp tension control system is the important component part of loom, and its performance is directly related with the quality of fabric.External research starting in this respect relatively early, such as Belgian Bi Jianuo loom manufacturing company, Switzerland WillyGrob company, German Berger lahr company, Italian Ergotron S.A.S. company, Aachen, Germany Institute for Research and Technology etc.They are all haveing breakthrough aspect the weaving-machine tension control, have applied for a lot of European patents, and particularly Aachen, Germany Institute for Research and Technology has been applied to nerual network technique the warp on loom Tension Control.Some external high-grade looms all adopt the electronic warp feeding electronics system of curling, keep warp tension constant in the process that runs well to guarantee loom, reach the purpose of elimination bad start-up.A large amount of work is being done by some external major companies aspect the bad start-up compensation, as the hundred Ge La companies (BERGER LAHA) of Germany.The problem that loom that the companies such as ICBT of gondola Azithromycin company (THEMAEXCEL) and France produce or controller can solve bad start-up preferably, but also there are problems such as intelligent poor performance in external warp tension control system, and cost an arm and a leg, general textile enterprise is difficult to bear the price of this costliness, and external warp tension control system also is difficult to adapt to figurative jacquard.

The warp tension control system of present domestic fabric manufacture equipment is most of for machinery batches, mechanical feeding system of warp, it controls the amount of batching and warp run-in by a series of mechanical mechanism (lever, gear, spring, clutch), its complex structure, high speed performance and low-speed performance inequality, control accuracy are low, easy to wear, consumption of raw materials big, product specification is difficult to improve.Chinese patent 200320106177.7 discloses a kind of cord fabric Rapier looms machine exoelectron warp-feeding mechanism, adopts variable frequency control, and response speed is slow, and control accuracy is low, is difficult to adapt to the requirement of middle and high fast fabric manufacture equipment.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of warp tension control system that is used for fabric manufacture equipment is provided.

Be used for fabric manufacture equipment warp tension control system warp let-off curl control device respectively with master controller, modular converter, encoder is connected, tension pick-up is connected with modular converter, the internal module annexation of warp let-off curl control device be an ARM flush bonding processor respectively with a DC/DC converter, first reset circuit, first jtag interface, first extends out program storage, first extends out data storage, secondary store, first real-time clock, the one RS232 driver, control platform IO mouth is connected, the one RS232 driver is connected with a RS232 interface, and a DC/DC converter is connected with first power supply.

The internal module annexation of described master controller is: the 2nd ARM flush bonding processor extends out with the 2nd DC/DC converter, lcd driver, the 2nd RS232 driver, second respectively that data storage, second extends out program storage, network interface, IIC memory, second reset circuit, CPLD association treatment circuit, the active crystal oscillator of 8M, second real-time clock, second jtag interface is connected, the 2nd DC/DC converter is connected with second source, lcd driver is connected with LCD display, and the 2nd RS232 driver is connected with the 2nd RS232 interface.

Described CPLD assists the internal module annexation of treatment circuit to be: the CPLD chip is connected with control signal output circuit, loom push button signalling input circuit, voltage-stabilized power supply, 10 pin jtag interfaces, photoelectric encoder, the active crystal oscillator of 12M, the 3rd reset circuit, matrix keyboard, state/fault-signal input circuit respectively.

What control strategy of the present utility model used is the adaptive Fuzzy PID Control technology, carries out fuzzy quantization by the state variable to system, utilizes the on-line study of fuzzy control rule, sets up the expert system that is applicable to various looms.Expert system according to the loom type, weave loom preset parameter and loom operational factors such as the real-time filling density value of loom, the speed of a motor vehicle such as colored type, from the expert system database, search the zone or the most approaching zone that equate with above-mentioned parameter, in inference machine, utilize inference rule to carry out analyzing and processing, draw weaving-machine tension control parameter at last, thereby reach the optimum of performance indications.Expert system has self-learning function, and by on-line study, knowledge base constantly obtains more excellent parameter to reach desirable weaving-machine tension control effect.

The utility model combines by high performance two ARM chips and expert control system, can be to the very accurate control of tension force.

Description of drawings

Fig. 1 is the warp tension control system circuit block diagram that is used for fabric manufacture equipment;

Fig. 2 is a warp let-off curl control device hardware circuit diagram of the present utility model;

Fig. 3 is a master controller hardware circuit diagram of the present utility model;

Fig. 4 is a CPLD coprocessor hardware circuit diagram of the present utility model;

Fig. 5 is the circuit module that CPLD software of the present utility model is realized;

Fig. 6 is a multi-thread software design frame chart of the present utility model;

Fig. 7 is a program circuit schematic diagram of the present utility model.

The specific embodiment

As Fig. 1, shown in 2, be used for fabric manufacture equipment warp tension control system warp let-off curl control device respectively with master controller, modular converter, encoder is connected, tension pick-up is connected with modular converter, the internal module annexation of warp let-off curl control device be an ARM flush bonding processor respectively with a DC/DC converter, first reset circuit, first jtag interface, first extends out program storage, first extends out data storage, secondary store, first real-time clock, the one RS232 driver, control platform IO mouth is connected, the one RS232 driver is connected with a RS232 interface, and a DC/DC converter is connected with first power supply.It is the processor of S3C44B0 that the one ARM flush bonding processor is selected model for use, 20 pin jtag interfaces of the first jtag interface selection standard, first extends out program storage, and to select model for use be the Flash of SST39VF1601, first extends out data storage, and to select model for use be the SDRAM of HY57V641620, it is the EEPROM of AT24C02 that secondary store is selected model for use, and it is the driver of MAX232 that the RS232 driver is selected model for use.Tension pick-up is monitored warp tension at a plurality of crucial moments in a shuttle cycle, give warp let-off curl control device the corresponding signal of telecommunication.Control system will by sensor to tension signal convert data signal to through A/D, calculate the mean value of one-period internal tension then, compare with the tension force of setting in the controller and calculate by certain control strategy, obtain the pulse signal of some, control the warp let-off and curling motor operation, parking, rotating speed control and turn to etc. with this, guarantee constant warp on loom tension force.And communicate by letter with master controller by RS232, transmit necessary data to realize on-the-spot man-machine interaction and RMON.

As shown in Figure 3, the internal module annexation of master controller is: the 2nd ARM flush bonding processor extends out with the 2nd DC/DC converter, lcd driver, the 2nd RS232 driver, second respectively that data storage, second extends out program storage, network interface, IIC memory, second reset circuit, CPLD association treatment circuit, the active crystal oscillator of 8M, second real-time clock, second jtag interface is connected, the 2nd DC/DC converter is connected with second source, lcd driver is connected with LCD display, and the 2nd RS232 driver is connected with the 2nd RS232 interface.Master controller is communicated by letter with warp let-off curl control device by RS232, obtain corresponding data, show on the LCD that control system carries, and these data passed on the long-range supervisory control comuter by network interface that convenient on-the-spot and total Control Room staff understands real-time tension force.The staff can control loom, can freely customize several control pictures, comprises production status master interface, the curling compensation control of warp let-off interface etc.Master controller has been realized on-the-spot man-machine interaction and RMON function.

As shown in Figure 4, the internal module annexation of CPLD association treatment circuit is: the CPLD chip is connected with control signal output circuit, loom push button signalling input circuit, voltage-stabilized power supply, 10 pin jtag interfaces, photoelectric encoder, the active crystal oscillator of 12M, the 3rd reset circuit, matrix keyboard, state/fault-signal input circuit respectively.CPLD association treatment circuit has been expanded the resource of arm processor, for control signal, loom push button signalling, photoelectric encoder signal, matrix keyboard signal, state/fault-signal provide input/output interface.In addition, CPLD association treatment circuit has been born the part work of CPU, has improved the stability of system.

As shown in Figure 5, CPLD coprocessor software has realized that interrupt management circuit, signal pre-processing circuit, keyboard decoding circuit, part loom technology realize circuit, output control signal decoding circuit.Finish task as much as possible by stable CPLD replaced C PU, on the one hand carrying out some task by more stable CPLD replaced C PU can improve the stability of a system, and the 2nd, alleviate the load of CPU, also allow the program of CPU simpler; Most important parking technology is placed in the CPLD carries out,,, guaranteed the safety of loom as long as can realize stopping when needing to stop so what fault no matter when, no matter to occur; The staplings fault redundance is detected, when detecting the staplings fault for the first time, behind 5ms, reaffirm, prevent to disturb to cause malfunction.

Shown in Fig. 6,7, systems soft ware comprises that each hand push button is handled module compositions such as subprogram under main program, Tension Control subprogram, timer interruption subroutine, express and crawl processing subprogram, communication subprogram, the dead ship condition, adopts the mode of multithreading to realize.Management thread is the administrative center of whole application software, coordinates controlling sharing out the work and help one another between each thread.Its concrete function is as follows: whenever loom moves a shuttle, just loom main shaft turns over a circle, and encoder will produce a certain amount of interruption, after each external interrupt service routine finishes, its thread is waken in the capital up, and it is counted the number of turns that turns under the loom current state.If current when being crawl or driving state, the loom revolution is crossed a fixing turn, wakes A/D sampling process up, carries out the tension pick-up data acquisition; The loom revolution is crossed an other fixing turn, wakes control algolithm adjustment of tonicity process up.If current is idling rating, and is under the positive-negative rotation state, open warp let-off reel-motor.Data acquisition thread and data processing threads are shared a buffer queue, and the data acquisition thread writes data in buffering area, and the data processing threads fetches data from buffering area.But both keep mutual exclusion when using the buffering area formation, otherwise may cause obtaining misdata writing fashionable generation data covering when reading.Communication thread is exactly to call some functions that serial port drive realizes.Function that the button processing threads realizes that mainly the front and back warp let-off of loom is batched etc., technological parameter are preserved thread and are realized that the power down of data is not lost etc.

Claims

1. warp tension control system that is used for fabric manufacture equipment, it is characterized in that warp let-off curl control device respectively with master controller, modular converter, encoder is connected, tension pick-up is connected with modular converter, the internal module annexation of warp let-off curl control device be an ARM flush bonding processor respectively with a DC/DC converter, first reset circuit, first jtag interface, first extends out program storage, first extends out data storage, secondary store, first real-time clock, the one RS232 driver, control platform IO mouth is connected, the one RS232 driver is connected with a RS232 interface, and a DC/DC converter is connected with first power supply.

2. a kind of warp tension control system that is used for fabric manufacture equipment according to claim 1, the internal module annexation that it is characterized in that described master controller is: the 2nd ARM flush bonding processor respectively with the 2nd DC/DC converter, lcd driver, the 2nd RS232 driver, second extends out data storage, second extends out program storage, network interface, the IIC memory, second reset circuit, CPLD assists treatment circuit, the active crystal oscillator of 8M, second real-time clock, second jtag interface is connected, the 2nd DC/DC converter is connected with second source, lcd driver is connected with LCD display, and the 2nd RS232 driver is connected with the 2nd RS232 interface.

3. a kind of warp tension control system that is used for fabric manufacture equipment according to claim 2, it is characterized in that described CPLD assists the internal module annexation of treatment circuit to be: the CPLD chip is connected with control signal output circuit, loom push button signalling input circuit, voltage-stabilized power supply, 10 pin jtag interfaces, photoelectric encoder, the active crystal oscillator of 12M, the 3rd reset circuit, matrix keyboard, state/fault-signal input circuit respectively.