CN1057424A - Device for controlling positive vulcanization time of rubber product - Google Patents
Device for controlling positive vulcanization time of rubber product Download PDFInfo
- Publication number
- CN1057424A CN1057424A CN 91107249 CN91107249A CN1057424A CN 1057424 A CN1057424 A CN 1057424A CN 91107249 CN91107249 CN 91107249 CN 91107249 A CN91107249 A CN 91107249A CN 1057424 A CN1057424 A CN 1057424A
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- CN
- China
- Prior art keywords
- control device
- vulcanization
- rubber
- rubber product
- temperature
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Links
- 238000004073 vulcanization Methods 0.000 title abstract 8
- 238000010586 diagram Methods 0.000 claims description 13
- 239000000872 buffer Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 7
- 238000005486 sulfidation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract 1
- 238000005987 sulfurization reaction Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
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- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention discloses a device for controlling the positive vulcanization time of a rubber product. The device can automatically and continuously select the right vulcanization time required by the rubber product in the vulcanization process at the vulcanization temperature of 100-199 ℃, and timely sends out a signal for stopping vulcanization, thereby reliably preventing the rubber product from under-vulcanization or over-vulcanization. Therefore, the device is an ideal device which can ensure the optimal physical and chemical properties of rubber products, improve the production efficiency and save energy. The device has compact structure, easy manufacture and low cost, and is particularly suitable for small and medium-sized vulcanizing equipment.
Description
The present invention relates to a kind of control device that cure time is selected in rubber industry, be specially adapted to medium and small vulcanizing equipment.
Vulcanized rubber article is along with the ability difference, and dividing has large-scale vulcanizing equipment and medium and small vulcanizing equipment.For correct control optimum sulfurating time, in large-scale vulcanizing equipment, all adopt jet or 16 machines to carry out the comprehensive automatic control of total system, comprising control to steam pressure.As domestic each enterprise present situation or U.S. Meng Shan () product all.When adopting the comprehensive automatic control of total system, investment that must be bigger, therefore unable employing on medium and small vulcanizing equipment.Carry according to the rubber industry magazine, in medium and small vulcanizing equipment, its steam pressure is manual control, because steam pressure changes greatly, the variation of corresponding curing temperature is also big.For guaranteeing enough sulfurizing times, the operative employee is commonly used to improve the certain cure time of steam pressure technical staff increase then commonly used, so that remedy the accidental downslide phenomenon that occurs of steam pressure.Therefore it is excessive to form energy consumption, the low and unsettled shortcoming of properties of product of efficient.
The present invention provides in order to overcome the above-mentioned shortcoming in the vulcanizing equipment.State clearly according to the rubber industry magazine, for the sulfurizing time that guarantees rubber should satisfy formula: Lg △ ti=(T
1-T
0)/10LgK; ∑ (△ ti+ti) 〉=1.
In the formula: T
0For giving fixed temperature, T
1Be observed temperature,
T
0Given sulfurizing time,
∑ (△ ti+ti) is the accumulated value of required cure time under the each point temperature,
Ti is given the time by block sampling;
△ ti is the determined incremental time of variations in temperature;
K is temperature variant function, and the K value of its each point is found out by microcomputer, obtains increment △ ti according to logarithmic function then.
After the rubber prescription of a certain technological requirement is determined, the T that variations in temperature is got in its sulfuration
0Be certain value.Contained in about " sulfuration of rubber high temperature and high speed " literary composition as 70 years the 9th phases of Japan rubber association: after a certain steam pressure is given, then temperature fluctuation range generally be no more than ± 10 ℃, maximum is no more than ± 20 ℃ (except that equipment faults) promptly:
Curing temperature (℃) cure time (branch)
130 100.0
140 54.8
150 31.0
And according to formula Lg △ ti=(T
1-T
0)/10LgK calculates, and when given curing temperature is 140 ℃, cure time is 54.8 timesharing, increment △ ti=0.
Temperature drops to 130 ℃; The K value should be 1.83; Actual cure time then is 100.3 minutes;
Temperature rises to 150 ℃; The K value should be 1.76; Actual cure time then is 31.2 minutes.
The control device of body confession of the present invention, by formula Lg △ ti=(T
1-T
0)/10LgK, the moving product that calculate rubber continuously of son required sulfurizing time in sulfidation between 100～199 ℃ of curing temperatures is when meeting ∑ (△ ti+ti) 〉=t
0Concern the time send and stop the sulfuration signal.Prevent that reliably sulphur or over cure situation from appearring owing in rubber.Therefore this control device is the best physicochemical property of a kind of assurance rubber, the also ideal device of energy energy savings of enhancing productivity.This apparatus structure compactness, easy to manufacture, with low cost, be specially adapted to middle-size and small-size vulcanizing equipment.
Task of the present invention is finished in such a way
Fig. 1 is that the driving of temperature digital formula line can be read in the sensor former sharp block diagram of (being called for short temperature sensor down together)
Fig. 2 is the micro computer CPU theory diagram of (being called for short micro computer down together)
Fig. 3 is the temperature sensor system circuit diagram
Fig. 4 is the microcomputer system circuit diagram
This control device is made up of temperature sensor and micro computer two parts.
1 is the RTD that the temperature sampling circuit road is namely commonly used among Fig. 1; 2 is the amplifier signal amplification circuit; 3 is the 3l/2AD change-over circuit; 4 is to fixed temperature (T0) circuit; 5 is (t preset time0) circuit; 6 are the tentative circuit of buffer Various types of data; 7 are line driving loader circuit.
Temperature sensor is by (U10) 3l/2AD converter, (U11～U
14) line drives loader, (U15～U
18) store data buffer, (U19～U
20) reference generator, (U21) sampled signal amplifier, RT RTD, and (S1～S
2) parts such as the given enter key of data and the connection of adopting circuitrons to make system by block diagram 1 and circuit diagram 3 form.
8 is crystal oscillating circuit among Fig. 2, and 9 is the CPU central processing unit circuit; 10 is address decoder circuit; 11 is input interface circuit, and 12 is 2716 memory circuits; 13 is the CTC timer circuit; 14 is the display buffer decoding circuit; 15 is the output interface buffer circuit; 16 is display; 17 is driver. Micro computer is by (U1) CPU CPU, (U2) 2716 deposit program curing, (U3) CTC timer, (U4) PIO drives interface, (U9) two slices address decoders, (U6、U
8) buffer, (U5) driver, (U7) decoder driver and or door wait parts also to press block diagram 2 and circuit diagram 4, the connection that the employing circuitron is made system forms.
This control device when operation, its temperature sensor shown in block diagram 1 at first RTD (commonly used) sample. It is 1 degree that sampled level is got 10mv, much larger than environment temperature next level drift error of generation, satisfies production requirement fully like this. After amplifying signal, amplifier send AD converter (U10) change, then will individual, ten, hundred, 1,004 temporary (U of data sending buffers15～U
18), again by micom drives (U11～U
14) data are imported. Its microcomputer system such as circuit be shown in Figure 4 only to be got about 10 integrated packages and consists of. During operation, by microcomputer line type of drive, directly from U11
～U
14Reading data, its speed is fast, the precision height, good stability, computer calculate different given T after data are processed0With actual measurement T1The time the K value, draw then △ ti, after cumulative, meet ∑ (△ ti+ti) 〉=t0Concern the time, send the signal that stops sulfuration.
In middle-size and small-size vulcanizing equipment, the advantage of this control device is:
When not adopting this control device:
(1). the operative employee will keep the variation (generally can not accomplish) at the other monitoring of vulcanizing equipment steam pressure always.
(2). because of the steam pressure fluctuation, the operative employee will ceaselessly regulate, because can not ceaselessly regulating, so still can't accurately control cure time.
(3). cause the quality shakiness of rubber.
(4). expend the energy.
(5). the sampling inspection data fluctuations is big, causes repeatedly duplicate sampling.
After adopting this control device:
(1). the operative employee only need check whether this control device works.
(2). according to the fluctuation of steam pressure, this control device can calculate the selection sulfurizing time automatically, sends to stop the sulfuration signal.
(3). guarantee the steady quality of rubber.
(4). energy savings.
(5). reduce sampling product number of times, exempted from too much product to be consumed in the sampling.
Claims (6)
1, a kind of in sulfidation, for rubber is determined to it is characterized in that the control device of sulfurizing time being made up of following two parts:
(1). temperature digital formula line drives and can read in sensor (being called for short temperature sensor down together);
(2). micro computer CPU (being called for short micro computer down together).
2, control device according to claim 1 is characterized in that temperature sensor is by (U
10) the special parallel operation of 3l/2AD, (U
11～U
14) line drives loader, (U
15～U
18) store data buffer, (U
19～U
20) reference generator, (U
21) sampled signal amplifier, RT RTD and (S
1～S
2) parts such as the given enter key of data, and the connection of adopting circuitrons to make system by block diagram 1 and circuit diagram 3 forms.
3, control device according to claim 1 is characterized in that micro computer is by (U
1) cpu central processing unit, (U
2) 2716 deposit program curing, (U
3) CTC timer, (U
4) PIO drives interface, (U
9) two slices detailed decoders in address, (U
6, U
8) buffer, (U
5) driver, (U
7) decoder driver and or parts such as door, and press block diagram 2 and circuit diagram 4, the employing circuitron is formed by connecting as system.
4, control device according to claim 2 is characterized in that taking line to drive input mode, makes to calculate the directly continual data that read fast of function.
5, control device according to claim 2 is characterized in that with 10MV be 1 degree sampling, therefore can adopt general amplifier.
6, control device according to claim 3 is characterized in that only having used about 10 integrated packages, has just solved T
1The functional value of two required calculating of variable of K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107249 CN1057424A (en) | 1991-07-13 | 1991-07-13 | Device for controlling positive vulcanization time of rubber product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107249 CN1057424A (en) | 1991-07-13 | 1991-07-13 | Device for controlling positive vulcanization time of rubber product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1057424A true CN1057424A (en) | 1992-01-01 |
Family
ID=4908604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91107249 Pending CN1057424A (en) | 1991-07-13 | 1991-07-13 | Device for controlling positive vulcanization time of rubber product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246662A (en) * | 2013-05-27 | 2016-01-13 | 横滨橡胶株式会社 | Vulcanization control method and vulcanization control system |
-
1991
- 1991-07-13 CN CN 91107249 patent/CN1057424A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246662A (en) * | 2013-05-27 | 2016-01-13 | 横滨橡胶株式会社 | Vulcanization control method and vulcanization control system |
| CN105246662B (en) * | 2013-05-27 | 2017-06-13 | 横滨橡胶株式会社 | Vulcanization mechanism method and vulcanization mechanism system |
| US10131104B2 (en) | 2013-05-27 | 2018-11-20 | The Yokohama Rubber Co., Ltd. | Vulcanization control method and vulcanization control system |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |