CN2070910U - Microcomputer monitor for rubber vulcanizer - Google Patents

Abstract

The utility model relates to a microcomputer monitor for rubber vulcanization, in which a control circuit takes an 8031 single chip as a core, comprising an EPROM2764, an RAM6116, a printer interface circuit 8155, an A/D converter 7135, a clock display circuit and various connecting keys for setting measuring range and controlling program running; the EPROM2764 stores various processing programs; the RAM6116 is used for storing monitoring data and computation result. The utility model adopts software like interrupt program to achieve real time processing of torsion value measured, to protract vulcanization curve in time and to print computation result. The circuit design is simple and reasonable. The utility model works stably and reliably, in addition, the operation is convenient and flexible, and meanwhile the mensuration work of vulcanization can be completed automatically and exactly; the utility model is an update product of recorders.

Description

The computer monitoring device of vulcanization of rubber instrument

The utility model relates to a kind of supporting pen recorder of vulcanization of rubber instrument, exactly, relates to and a kind ofly comes real-time monitoring record vulcanization of rubber curve and to the monitoring device that its data are carried out computing, belong to the microcomputer applied technical field with microcomputer.

For many years, widely used in the research of China's rubber industry, design and the production division " rubber plantation dish swing sulfuration analyzer " (be called for short: recording/output apparatus vulcameter) be with traditional mapping instrument one by one registering instrument realize.This registering instrument function is simple, can only write down curing curve, and poor reliability, precision are low.Operating personnel need carry out loaded down with trivial details a large amount of calculating after obtaining this curing curve, just can obtain desired data, and task performance is low, also needs professionalization expense energy and time computational data.Therefore, this registering instrument is eliminated gradually, and factory has no longer produced.Even the existing recorded instrument is when damaging, and accessory all is difficult to buy.

The purpose of this utility model provides a kind of monitoring record device of controlling the vulcanization of rubber instrument of realization with microcomputer.

The utility model pulls by being printed by casing, panel and control circuit that the main frame that constitutes and printer form.Wherein control circuit is that 8031 single chip microcomputers with MCS-51 series are core.Include the EPROM chip 2764 of the various handling procedures of storage, store that button K7～K9 of RAM chip 6116, printer interface circuit 8155 chips of real-time data monitored and result, 41/2 high-precision a/d converter 7135, digital clock display circuit, the button K1～K6 that selects measurement range and the program run of control monitoring device forms.Wherein directly insert input end 9,10 pin of A/D converter 7135 through capacitance-resistance filter by the signal of vulcanization of rubber instrument survey sensor collection output, convert 4 half binary-coded decimal output to, send into 8031 data bus through 8155 A mouth again, 8155 B mouth is a printer interface, and interface connects therewith through socket, cable is PP-40 type microprinting plotting apparatus; 6 button K1～K6 that select measurement range are connected with each pin of P1 mouth of 8031, the signal of " termination " sulfuration button K7 connects 8031 13 pin (INTI), the signal of " printing " button K8 again connects 11 pin (P3.1), and the clock signal of cure time display circuit is then drawn from 8 pin (P1.7).

The utility model makes full use of microcomputer and modern microelectronic technical advantage, the analog signal conversion of the torque numerical value that vulcameter is measured becomes that digital signal is calculated, processing and real-time rendering go out level and smooth sulfuration intermediate value curve, and directly prints required various operation results.Observation process is flexible to operation, both can end the sulfuration process at any time, prints the various parameters of gained; Also can be as required, the gauge outfit that duplicate printing is surveyed and drawn, curve and result of calculation.The measure portion of device is abandoned amplifier device and Cai Bao device, and temperature is floated, drift is low, input impedance height, stable performance.Softwares such as employing interrupt handling routine are controlled in real time and are calculated, and have realized that data processing and curve plotting carry out simultaneously, in time the point-by-point mapping curing curve.Line design is simple in structure, and power supply is single; Working stability is reliable; Reference voltage precision height (reducing to 100.0 millivolts) by 1 volt of routine, the resolution height of test signal (10 microvolt), broad quantum (2500 microvolt), can finish the mapping evaluation work automatically and accurately, for improving the important equipment of the robotization level of vulcanizing mensuration work.

Specifically set forth the utility model below in conjunction with accompanying drawing.

Fig. 1 is a general structure arrangement plan of the present utility model.

Fig. 2 is a panel structure chart of the present utility model.

Fig. 3 is an electrical schematic diagram of the present utility model.

1 is the main frame of computer monitoring device among Fig. 1, the 2nd, and microprinting plotting apparatus PP-40, it also is the output device of main frame, by 20 core flat cables 3 both is joined together.Then 5 outputs of the terminal from its rear chassis plate of the sensor signal of vulcanization of rubber instrument 4 insert the utility model through signal input cable 6.The general structure configuration of Here it is this measurement mechanism.

Panel construction of the present utility model as shown in Figure 2, be equipped with on it and show the digital time showing (minute, second) of vulcanizing the time of carrying out, 6 buttons selecting measurement range are arranged, wherein three is that the torque retaining is selected (50,100,150 kilograms-centimetre), three is that the time retaining is selected (30,60,120 minutes), also has three control knobs (start, end and print) and power light.

Fig. 3 is the electrical schematic diagram of this device.Central processing unit is 8031 chips of MCS-051 series, as monolithic control microcomputer.The EPROM2764 chip is the various processing of storage, control program.In order to improve the real-time of system, whole device adopts the working mechanism of drives interrupts, and its software partly is made up of master routine, 100 milliseconds of interrupt handling routines, data acquisition interrupt handling routine, curing curve output interrupt handling routines and termination vulcanizing treatment programs etc.Because of software does not belong to the scope that utility model patent is protected, so do not repeat them here.The LS373 chip is a data latches, is used to latch the least-significant byte address wire, so that the least-significant byte address is extracted from data bus and least-significant byte address common bus.6116 of random access memory RAM chips are used to store various data and the calculation process result who monitors.41/2 high-precision A/D conversion chip ICL7135 is adopted in the A/D conversion.The signal of being sent here by sensor acquisition is 0～2.5 millivolt a AC signal, and frequency is 3 cycle per minutes.And sample rate be decided to be the l20 point/minute, sampling 40 points in ripple weekly can more accurately write down the friendship law of vulcameter swing torque like this.The simulating signal of input is directly imported from 7135 9,10 pin through capacitance-resistance filter, converts 4 half binary-coded decimal is sent into 8031CPU through 8155 A mouth data bus to.Each conversion is sent 5 subpulses by the STB signal of 7135 chips and is given 8031 INTO request Interrupt Process, cause 7135 is when clock frequency is 125KHZ, the pulsewidth of STB only is 5 microseconds, and the look-at-me as 8031 can not be responded reliably.The utility model seals in one 1/2 74LS123 monostable circuit chip at the lock of the INTO of STB and 8031, negative pulse width is expanded to about 500 microseconds, guarantee response, do not lose each measurement data INTO.7135 clock signal is provided by 8155 timer.The input signal TIME IN (3 pin) of timer is by 8031 ALE and the synthetic positive pulse of signals such as WE, RD, and TIME OUT (6 pin) output signal be frequency is the continuous square wave of 125KHZ.The utility model is reduced to 100.0 millivolts with 7135 reference voltage by 1 volt, and it is from producing 1403 chips of 2.50 volts of reference voltages, inserts 7135 2 pin (REF end) acquisition behind 3 electric resistance partial pressures.Like this, to per minute 3 with interchange microvolt level signal, the utility model can get rid of rectifier and signal amplifier and directly carry out the A/D conversion, thereby obtains high input impedance and extremely low drift and temperature floated, the assurance measurement data is reliable and stable.Be power supply of the present utility model is reduced to single+5 volt, adopt required-5 volts of power supplies of 7l35 the ICL7660 chips to produce access from+5 volts conversions.Among Fig. 3 Be simulating signal ground,  is for imitating the word signal ground, and the two separately only links to each other with 24 pin places at 7135 3 pin.The B mouth of 8155 chips is printer interfaces, what interface connected therewith is PP-40 type microprinting plotting apparatus, coordinate axis, curing curve and the required various result of calculations of its energy printed report gauge outfit, curing curve: maximum torque MH, minimum torque ML, incipient cure time T S2,90% cure time T90 and cure rate index Vc or the like.The 1/2 LS123 monostable circuit that links to each other with 1 end of 20 line sockets 10 is the strobe pulse STB generator of printer.

0～50,0～100 and 0～150 measurement range of the present utility model can the artificial selection setting, and wherein vulcameter swing torque can divide three retainings: (unit: kilogram-centimetre), cure time also is divided into third gear: 0～30,0～60 and 0～120 (unit: divide).They are provided with band self-locking type button K1～K6 respectively.And K7～K9 is the open type button, wherein K7 is " termination " key, meet 8031 INTI (13 pin), being used to begin to draw curing curve arrives before the setting-up time afterwards, (when having entered straight stage as the sulfidation curve) ends sulfidation in advance, finishes monitoring and draws.Promptly end the sulfuration monitoring behind the button, print each parameter of being calculated simultaneously immediately.K8 is " printing again " key, meets 8031 P3.1 (11 pin), can repeat the curing curve and the result of calculation of one or many output monitoring with it.K9 is " starting " key, meets 8031 RESET (9 pin), also is the reset key of machine.The time clock of the digital display circuit 11 of cure time is then drawn from 8031 P1.1 (8 pin), can directly read from the panel cure time process (with * * * minute * * form of copying shows).

Claims (6)

1. the computer monitoring device of a vulcanization of rubber instrument, include main frame and printer composition that casing, panel and control circuit printed board constitute, it is characterized in that control circuit is that 8031 single chip microcomputers with MCS-51 series are core, include that button K7～K9 of RAM6116 chip, printer interface circuit 8155 chips of EPROM2764 chip, the real-time data monitored of storage and the result of the various handling procedures of storage, 41/2 A/D converter 7135, clock display circuit, button K1～K6 that measurement range is set and control program operation forms; Wherein directly insert input end 9,10 pin of A/D converter 7135 through capacitance-resistance filter by the signal of vulcanization of rubber instrument survey sensor collection output, its output then links to each other with 8155 A mouth, take this monitoring numerical value is sent into 8031 data bus, 8155 B mouth is connected with PP-40 type microprinting plotting apparatus interface through socket, cable, 6 button K1～K6 that select measurement range link to each other with each pin of P1 mouth of 8031 respectively, " termination " of control program operation, " printing again " and " starting " key respectively with 8031 13,11 link to each other with 9 pin.

2. computer monitoring device as claimed in claim 1, the reference voltage value that it is characterized in that 7135 chips is 100.0 millivolts, and it is by 1403 chips that produce 2.50 volts of reference voltages, and 2 pin (REF end) of access 7135 obtain behind electric resistance partial pressure.

3. computer monitoring device as claimed in claim 1, it is characterized in that 7135 STB signal, received the 1/2 LS123 monostable circuit of pulsewidth being widened 500 microseconds earlier, received 12 pin (INTO) of 8031 chips again.

4. computer monitoring device as claimed in claim 1, it is characterized in that-5 volts of power ends of 7135 are connected to can be+5 volts of 7660 chip that convert-5 volts to.

5. computer monitoring device as claimed in claim 1, it is characterized in that selecting 6 button K1～K6 of measurement range all is band self-locking type button, wherein K1～K3 is used to select cure time (branch): 30,60 and 120, and K4～K6 is used to select the swing torque (kilogram-centimetre) of vulcameter: 50,100 and 150.

6. computer monitoring device as claimed in claim 1 is characterized in that 3 buttons of control program operation are the open type button, be respectively " terminations " (K7), " printing again " (K8) with " starting " (K9).

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