CN201681281U

CN201681281U - Monitoring system for alkali-free glassfibre wire drawing processes

Info

Publication number: CN201681281U
Application number: CN2010201752101U
Authority: CN
Inventors: 谭珍祥; 杨华群
Original assignee: JIANGXI CHANGJIANG GLASS FIBER CO Ltd
Current assignee: JIANGXI CHANGJIANG GLASS FIBER CO Ltd
Priority date: 2010-04-29
Filing date: 2010-04-29
Publication date: 2010-12-22
Anticipated expiration: 2020-04-29

Abstract

The utility model relates to a monitoring system for alkali-free glassfibre wire drawing processes. The monitoring system comprises a temperature control meter, a thyristor, a bushing transformer, a temperature signal transducer, and a ball adding controller, wherein the ISR+ terminal and the ISR- terminal of the temperature control meter are connected with the bushing transformer through the thyristor; the secondary terminal of the bushing transformer is connected with the EU- terminal and the EU+ terminal of the temperature signal transducer through a thermocouple; the A terminal and the B terminal of the temperature signal transducer are connected with the A0 transducer communication terminal and the B0 transducer communication terminal of the temperature control meter; the secondary terminal voltage UF of the bushing transformer is connected with the voltage feedback terminal of the temperature control meter; the host computer signal A terminal and the host computer signal B terminal of the temperature control meter are sent to a monitoring computer through a communication protocol; and the RS-485 terminal of the ball adding controller is connected with the host computer communication interface of the temperature control meter. Therefore, the utility model can conduct centralized monitoring, controlling and recording of alkali-free glassfibre wire drawing temperature and automatic ball adding operation, has the characteristic of real-time monitoring, saves manpower, and reduces process deviation caused by human factors.

Description

A kind of alkali-free glass fiber drawing process supervisory system

Technical field

The utility model relates to a kind of alkali-free glass fiber drawing process supervisory system.

Background technology

Using at present glass wire drawing supervisory system is by temperature controller and independently add the ball controller and monitor independently separately, can't accomplish true reliable because human factor causes temperature and adds the ball record, make number number of glass yarn occur subsequent handling being caused big quality problems than large deviation.

Summary of the invention

Its purpose of the utility model just is to provide a kind of alkali-free glass fiber drawing process supervisory system, has the characteristics of real-time monitoring, saves manpower and has reduced the process deviation that causes owing to human factor, improves the product quality indicator of glass yarn.

The technical scheme that realizes above-mentioned purpose and take, comprise temperature control instrument, thyristor, bushing transformer and temperature signal transmitter, and add ball controller, described temperature control instrument ISR+, the ISR-end connects bushing transformer through thyristor, the bushing transformer secondary terminals connects temperature signal transmitter EU-through thermopair, the EU+ end, described temperature signal transmitter A, the B end connects temperature control instrument A0, B0 transmitter communication end, described bushing transformer secondary terminals voltage U F connects the temperature control instrument pressure feedback port, described temperature control instrument host computer signal A, the B end is delivered to monitoring computer by communication protocol, and the described ball controller RS-485 terminal that adds connects the temperature control instrument communication interface with pc.

Compared with prior art the utlity model has following advantage,

Owing to adopted the structural design of real-time computer monitor, thereby had the characteristics of real-time monitoring, save manpower and reduced the process deviation that causes owing to human factor, improve the product quality indicator of glass yarn.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing:

Accompanying drawing is this apparatus structure electricity principle schematic.

Embodiment

Its principle of work is that the wire-drawing temperature controller carries out being aggregated into computer control and record by communication protocol, adds ball controller automatically and installs communicator additional, is aggregated into that computer is controlled and record.

Embodiment, comprise temperature control instrument 1, thyristor 2, bushing transformer 3 and temperature signal transmitter 6, and add ball controller, as shown in drawings, described temperature control instrument 1ISR+, the ISR-end connects bushing transformer 3 through thyristor 2, bushing transformer 3 secondary terminals connect temperature signal transmitter 6EU-through thermopair 5, the EU+ end, described temperature signal transmitter 6A, the B end connects temperature control instrument 1A0, B0 transmitter communication end, described bushing transformer 3 secondary terminals voltage U F connect temperature control instrument 1 pressure feedback port, described temperature control instrument 1 host computer signal A, B end 7 is delivered to monitoring computer by communication protocol, and the described ball controller RS-485 terminal that adds connects the temperature control instrument communication interface with pc.

The wire-drawing temperature control system is made up of temperature control instrument 1, thyristor 2, bushing transformer 3 and temperature signal transmitter 6.Its control principle is to send ISR+ by temperature control instrument 1 according to the temperature of setting, the ISR-trigger pip is given thyristor 2, primary current by thyristor 2 control bushing transformers 3, the big electric current of the secondary low-voltage of bushing transformer 3 provides the heating of platinum bushing, the secondary voltage UF of bushing transformer 3 constitutes the voltage feedback signal of control instrument, electric thermo-couple temperature feedback signal on the platinum bushing is delivered to temperature transmitter 6, convert digital signal to by transmitter and feed back to temperature control instrument, thereby the formation temperature auto control, the host computer signal A of temperature control instrument, B delivers to monitoring computer by communication protocol.

Transmitter is installed near the bushing, and thermopair is short as far as possible to the line of transmitter, transmitter is arranged again by the 485 metering house's instrument of communicating by letter, and the host computer of temperature control instrument communicates to connect monitoring computer.

Add ball controller by platinum cushion in crucible, when the metal level height just often, the connection of platinum pin and metal level, adding ball controller does not send and adds the ball signal, when metal level is lower than when setting, the platinum pin breaks away from metal level, adds ball controller this moment and sends and add the ball signal.The action situation that adds ball communicates to connect monitoring by RS-485.

Embodiment:

One. the communication connection explanation

1) electric smelting instrument

Interface specification:

U, V are the wherein two-phase of 380V three-phase electricity, and Uf is the electric smelting Voltage Feedback, A, B is and the order wire of upper industrial computer that SCR is that controllable silicon triggers pin (optional). during line, the line that can and connect has: U, V, A, B, the electric smelting address is since 192,193 ... to 211 (totally 20).

2) bushing instrument

Interface specification:

U, V are the wherein two-phase of 380V three-phase electricity, and Uf is the bushing Voltage Feedback, and A, B are and the order wire of upper industrial computer that A0, B0 are and the order wire of transmitter that SCR is that controllable silicon triggers pin (optional). during line, the line that can and connect has: U, V, A, B; Annotate: A0, B0 can not and connect. and the bushing address is since 128,129 ... to 147 (totally 20).

3) temperature transmitter

Temperature transmitter parameter calibration process is as follows:

The process of Cmv parameter calibration: such as the signal that is input as 10mv, the parameter 10000 of a comparison of input earlier obtains a value of returning, and for example is 14256.Our the actual parameter that will import is Cmv=10000x10000/14256=7015 so.

---------------0 (ASCII character)---34 (16)---T (ASCII character), the rreturn value that obtains is 14256 to 0 (ASCII character) to 0 (ASCII character) to 0 (ASCII character) to 1 (ASCII character) to concrete scaling method for input ASCII character C (ASCII character).

---------------5 (ASCII character)---40 (16)---T (ASCII character) demarcate and finish 1 (ASCII character) 0 (ASCII character) 7 (ASCII character) 0 (ASCII character) to demarcate the parameter 07015:C (ASCII character) of actual needs below.

Wherein verification and computing method be: C (ASCII character--43)+0 (ASCII character--30)+7 (ASCII character--37)+0 (ASCII character--30)+1 (ASCII character--31)+5 (ASCII character--35)=140 are got back two 40, import with 16 systems.

Input E sends for stopping data in the process of transmitting of data, and whether input K can observe the numerical value of parameter of our input consistent with the numerical value that calculates.

4) add globe:

Interface specification:

1.L N connects alternating current 220V.

2. the not wiring of earth terminal on the alternating current 220V limit.

3. add the ball motor terminal and connect the switch contact (annotate: these two terminal voltages are alternating current 220V) that adds ball motor.

4. the synchronous terminal of wire drawing machine directly connects the switch contact of wire drawing motor, and whether these two terminals are to detect wire drawing machine to work.(annotating :) because of field demand, with this terminal short circuit

5. platinum pin terminal is used for detecting liquid level, and these of two terminals connect the platinum pin, and one connects crucible oven.

6.RS-485 terminal is the interface that adds globe and upper machine communication.

Add the explanation of globe led status:

1. liquid level pilot lamp DD1 (being positioned on the circuit edges of boards):

When liquid level meets the demands (when the platinum pin contacts with glass metal), lamp DD1 extinguishes.

When liquid level does not meet the demands (when platinum pin and glass metal are separated), lamp DD1 is bright.

2. add ball pilot lamp DD2 (being positioned at the circuit board centre position):

When adding ball motor and do not work, lamp DD2 goes out.

When adding ball motor work, lamp DD2 is bright.

Add the globe programme of work

1. add globe and add ball at interval by adding the ball time and adding ball all the time, irrelevant with the platinum pin, if the platinum pin leaves the time of fire alarming that the liquid level time surpasses setting, then should correspondingly add the ball time or the interval time of reducing greatly. if still report to the police after revising, whether the scene of then should checking blocks up ball.

2. add globe and when the platinum pin leaves liquid level, just begin to add ball, behind the contact liquid level, stop to add ball by time of setting and interval. surpass the time of fire alarming of setting if the platinum pin leaves the liquid level time, whether the scene of then should checking blocks up ball.

Two. host computer software and hardware demand

1) 586 above industrial computers need contain and fall the high anti-jamming power-supply of dry cooling;

2) Windows2000 or WindowsXP operating system;

3) OFFICE2000 or above version are installed;

4) printer is installed.

Claims

1. alkali-free glass fiber drawing process supervisory system, comprise temperature control instrument (1), thyristor (2), bushing transformer (3) and temperature signal transmitter (6), and add ball controller, it is characterized in that, described temperature control instrument (1) ISR+, the ISR-end connects bushing transformer (3) through thyristor (2), bushing transformer (3) secondary terminals connects temperature signal transmitter (6) EU-through thermopair (5), the EU+ end, described temperature signal transmitter (6) A, the B end connects temperature control instrument (1) A0, B0 transmitter communication end, described bushing transformer (3) secondary terminals voltage U F connects temperature control instrument (1) pressure feedback port, described temperature control instrument (1) host computer signal A, B end (7) is delivered to monitoring computer by communication protocol, and the described ball controller RS-485 terminal that adds connects temperature control instrument communication interface with pc (7).