阅读说明：本技术 一种轮胎硫化机故障自诊断控制系统及控制方法 (Tire vulcanizer fault self-diagnosis control system and control method ) 是由 曾佳雄 于 2021-07-01 设计创作，主要内容包括：本发明公开了一种轮胎硫化机故障自诊断控制系统及控制方法,包括：胶囊内膜、模具、加热板、切断阀、高压蒸汽阀、低压蒸汽阀、放气阀、压力检测器、pt100温度传感器、无线传感器网络ZigBee等器件。轮胎硫化机在硫化第一阶段关闭切断阀7,打开切断阀10,通入低压蒸汽8后,通过测温模块获取轮胎充模装置开口处温度一；在过段时间后,继续按照工艺要求,打开切断阀7,关闭切断阀10,通入高压蒸汽9,获取轮胎充模装置开口处温度二；最后将轮胎充模装置开口处温度二减去温度一所得差值与事先设定报警阈值做比较,大于阈值报警装置启动；提醒操作人员轮胎硫化机有故障风险,避免轮胎硫化机发生损坏影响生产。(The invention discloses a tire vulcanizer fault self-diagnosis control system and a control method, comprising: capsule inner membrane, mould, hot plate, trip valve, high pressure steam valve, low pressure steam valve, bleed valve, pressure detector, pt100 temperature sensor, wireless sensor network zigBee etc.. The tire vulcanizer closes the cut-off valve 7 at the first stage of vulcanization, opens the cut-off valve 10, and obtains the first temperature at the opening of the tire mold filling device through the temperature measuring module after low-pressure steam 8 is introduced; after a period of time, continuously opening the cut-off valve 7, closing the cut-off valve 10 and introducing high-pressure steam 9 according to the process requirements to obtain the temperature II of the opening of the tire mold filling device; finally, comparing a difference value obtained by subtracting the first temperature from the second temperature at the opening of the tire mold filling device with a preset alarm threshold value, and starting the alarm device when the difference value is greater than the threshold value; reminding operating personnel that the tire vulcanizer has a fault risk, and avoiding the tire vulcanizer from being damaged to influence production.)

1. A tire vulcanizer fault self-diagnosis control system, comprising:

a tyre filling device comprising a tyre bladder inner membrane 4 and a mould 6; the die 6 is provided with a heating plate 9 and plays a role in heat preservation;

the tire inflation device is communicated with the tire bladder inner membrane 4 and is provided with cut-off valves 7 and 10; the inflation device comprises a high-pressure steam valve 9 and a low-pressure steam valve 8, the cut-off valves are used for controlling gas to enter inner membranes of tire capsules, the cut-off valves 7 and 10 are used for closing the cut-off valves 7 in a first vulcanization stage, opening the cut-off valves 10, introducing low-pressure steam, and obtaining the first temperature at the opening of the tire mold filling device; after a period of time, continuously opening the cut-off valve 7, closing the cut-off valve 10 and introducing high-pressure steam according to the process requirements to obtain the temperature II of the opening of the tire mold filling device; the quality of the tire with subsequently introduced high-pressure steam is obviously improved due to the time buffering vulcanization effect of the front section;

the tire deflation device is communicated with the tire bladder inner membrane; the air bleeding device comprises an air bleeding valve 12 which is used for bleeding used waste gas;

the tire mold 6 is provided with an opening valve 2, and the temperature measuring device is positioned at the opening valve 2;

and the alarm device is connected with the pt100 temperature sensor through a wireless sensor network ZigBee.

2. The tire vulcanizer fault self-diagnosis control system as set forth in claim 1, wherein said high pressure steam valve 9 and low pressure steam valve 8 are provided with shut-off valves in their pipes.

3. The tire vulcanizer fault self-diagnosis control system of claim 1, wherein said mold filling device is located in a hexagonal device.

4. A tire vulcanizer fault self-diagnosis control system as set forth in claim 1, wherein said temperature measuring means comprises a pt100 temperature sensor.

5. A tire vulcanizer fault self-diagnosis control method is characterized by comprising the following steps:

step 1, closing a cut-off valve 7 at a first vulcanization stage, opening a cut-off valve 10, and after low-pressure steam is introduced, acquiring a first temperature at an opening of a tire mold filling device through a temperature measurement module;

step 2, after the period of time, continuing to open the cut-off valve 7 and close the cut-off valve 10 according to the process requirements, and introducing high-pressure steam to obtain the temperature II of the opening of the tire mold filling device;

and 3, finally, comparing a difference value obtained by subtracting the first temperature from the second temperature at the opening of the tire mold filling device with a preset alarm threshold value, and starting the alarm device when the difference value is greater than the threshold value.

6. The tire vulcanizer fault self-diagnosis control method according to claim 5, wherein the interval time value range is (30,45) s.

Technical Field

The invention relates to the technical field of tire manufacturing, in particular to a tire vulcanizer fault self-diagnosis control system and a control method.

Background

The vulcanization is the most critical process in a tire rubber product, the quality of a rubber material vulcanized product is mainly determined by vulcanization parameters, the vulcanization temperature is one of the key parameters of the rubber vulcanization, and the vulcanization temperature mainly comprises the temperature rise speed of a vulcanizing machine, the temperature overshoot performance and the stability. In the market, the temperature of a vulcanizing machine can not enter a stable state within a specified time when the product is vulcanized, the product quality is seriously influenced, and once the temperature can not reach an ideal range, continuous scrapped products can be generated in production, so that great economic loss is caused.

Disclosure of Invention

In order to solve the problems, the invention provides a tire vulcanizer fault self-diagnosis control system and a control method.

The invention provides a tire vulcanizer fault self-diagnosis control system and a control method. The method comprises the following steps:

the tire mold filling device comprises a tire capsule inner membrane and a mold and is provided with a heating plate;

the tire inflation device is communicated with the inner membrane of the tire capsule and is provided with a cut-off valve;

the tire deflation device is communicated with the inner membrane of the capsule;

the tire mold is provided with an opening valve, and the temperature measuring device is positioned at the opening valve;

the alarm device is connected with the pt100 temperature sensor through a wireless sensor network ZigBee;

and the control device is in signal connection with the tire mold filling device, the tire inflation device, the tire deflation device, the tire temperature measuring device and the alarm device.

Further, the mold filling device is located in the hexagonal device.

Further, a cutoff valve is arranged between the steam valve and the tire mold filling device.

Further, the tire temperature measuring device includes a pt100 temperature sensor.

The invention also provides a tire vulcanizer fault self-diagnosis control method. The method comprises the following steps:

step 1, introducing low-pressure steam in a first vulcanization stage, closing a corresponding series circuit branch cut-off valve, and then obtaining the first temperature at an opening of a tire mold filling device through a temperature measurement module;

step 2, after the period of time, continuing to introduce high-pressure steam according to the process requirements, and obtaining the temperature II of the opening of the tire mold filling device after closing the corresponding series circuit branch cut-off valve;

step 3, finally, comparing a difference value obtained by subtracting the first temperature from the second temperature at the opening of the tire mold filling device with a preset alarm threshold value, and starting the alarm device when the difference value is greater than the threshold value;

further, the interval time value range is (30,45) s, and the alarm parameter value range is (1,1.2) ° c;

further, the tire vulcanizer fault self-diagnosis control method further comprises: when the pressure detector detects that the tire is in an inflated state, and the pressure of the air in the deflation device is detected to exceed a preset threshold value, the control device triggers the alarm device to give an alarm through the wireless sensor network.

Further, the value range of the threshold is (0.2,0.6) bar. The value range of the highest temperature parameter is (45,60) DEG C.

The method has the following advantages:

1. the tire vulcanizer adopts a fuzzy PID controller, detects the temperature at the opening of a tire mold by using a temperature measuring device, triggers an alarm device to give an alarm when the temperature value at the opening exceeds a set alarm threshold value, timely adjusts each PID parameter by means of adjusting deviation and change rate thereof, integrates two control modes of a fuzzy strategy and a conventional PID control, and improves the precision of an alarm sensor of a control system by combining two advantages.

2. Tire presses are large, resulting in a multiple increase in computational effort due to the severe non-linear nature of heat radiation. In order to improve the solving efficiency and the structural symmetry, the hexagonal design is adopted, and the heat loss of the electric heating flat plate is reduced.

3. The relay used by the vulcanizing machine on the market is an electromagnetic relay, and the on-off is generated by utilizing the suction effect between armatures. The relay has the defects of low response speed, low service life under large current and the like. The invention adopts the solid state relay to replace the electromagnetic relay, and utilizes two independent input control ends and two independent output controlled ends to play a good isolation role. And simultaneously, the amplification driving action of the current is realized. The service life is prolonged under large current, and the response speed and the stability of the system are improved.

Drawings

The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:

FIG. 1 is a block diagram of a tire vulcanizer fault self-diagnosis control system;

FIG. 2 is a structural diagram of a tire vulcanizer fault self-diagnosis control method;

detailed description of the invention

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

FIG. 1 is a block diagram of a tire vulcanizer fault self-diagnosis control system; FIG. 2 is a structural diagram of a tire vulcanizer fault self-diagnosis control method;

with reference to fig. 1 and 2, the invention provides a tire vulcanizer fault self-diagnosis control system, which specifically comprises:

a tyre filling device comprising a tyre bladder inner membrane 4 and a mould 6; the die 6 is provided with a heating plate 9 and plays a role in heat preservation;

the tire inflation device is communicated with the tire bladder inner membrane 4 and is provided with cut-off valves 7 and 10; the inflation device comprises a high-pressure steam valve 9 and a low-pressure steam valve 8, the cut-off valves are used for controlling the amount of gas entering the inner membranes of the tire capsules, and the cut-off valves 7 and 10 are used for closing the cut-off valves 7 at the first stage of vulcanization, opening the cut-off valves 10, introducing low-pressure steam and obtaining the first temperature at the opening of the tire mold filling device; after a period of time, continuously opening the cut-off valve 7, closing the cut-off valve 10 and introducing high-pressure steam according to the process requirements to obtain the temperature II of the opening of the tire mold filling device; due to the time buffering vulcanization effect of the front section, various indexes of the tire with subsequently introduced high-pressure steam are improved;

the tire deflation device is communicated with the inner membrane of the capsule; the air bleeding device comprises an air bleeding valve 12 which is used for bleeding used waste gas;

the tire mold 6 is provided with an opening valve 2, and the temperature measuring device is positioned at the opening valve 2;

the alarm device is connected with the pt100 temperature sensor through a wireless sensor network ZigBee;

and the control device is in signal connection with the tire mold filling device, the tire inflation device, the tire deflation device, the tire temperature measuring device and the alarm device.

Further, the opening valve is positioned at the upper side of the tire mold filling device, the mold filling device is positioned in the hexagonal device,

a cut-off valve is arranged between the gas valve and the tire mold filling device, and the tire temperature measuring device comprises a pt100 temperature sensor.

Further, the tire vulcanizer plates are large, resulting in a multiple increase in computational effort due to the severe non-linear nature of heat radiation. In order to improve the solving efficiency and the structural symmetry, the hexagonal design is adopted, and the heat loss of the electric heating flat plate is reduced.

In the first stage of vulcanization, a cut-off valve 7 is closed, a cut-off valve 10 is opened, and after low-pressure steam is introduced, the temperature I of the opening of the tire mold filling device is obtained through a temperature measuring module; after a certain period of time, opening the cut-off valve 7, closing the cut-off valve 10, and obtaining the temperature II at the opening of the tire mold filling device through the temperature measuring module again after introducing high-pressure steam; finally, comparing a difference value obtained by subtracting the first temperature from the second temperature at the opening of the tire mold filling device with a preset alarm threshold value, and starting the alarm device when the difference value is greater than the threshold value; as a preferred embodiment of the invention, the temperature measuring device adopts a pt100 temperature sensor, and the sensor has the advantages of low cost, convenience in loading and unloading and the like.

In another aspect of the embodiment of the present invention, as shown in fig. 1, the gas outlet device has a pressure detector 11, and the pressure detector 11 is in signal connection with the control device. The pressure detector 11 is used for detecting the gas pressure in the air bleeding device, and when the pressure detector 11 detects that the pressure is reduced to exceed a preset threshold value, the alarm device is controlled to give an alarm.

The invention also provides a tire vulcanizer fault self-diagnosis control method, which specifically comprises the following steps:

step 1, closing a cut-off valve 7 at a first vulcanization stage, opening a cut-off valve 10, introducing low-pressure steam 8, and then obtaining a first temperature at an opening of a tire mold filling device through a temperature measurement module;

step 2, after a period of time, continuing to open the cut-off valve 7, closing the cut-off valve 10 and introducing high-pressure steam 9 according to the process requirements to obtain a second temperature at the opening of the tire mold filling device;

step 3, comparing a difference value obtained by subtracting the first temperature from the second temperature at the opening of the tire mold filling device with a preset alarm threshold value, and starting the alarm device when the difference value is greater than the threshold value;

further, the interval time value range is (30,45) s, and the alarm parameter value range is (1,1.2) ° c;

further, the tire vulcanizer fault self-diagnosis control method further comprises: when the pressure detector detects that the tire is in an inflated state, and the pressure of the air in the deflation device is detected to exceed a preset threshold value, the control device triggers the alarm device to give an alarm through the wireless sensor network.

Further, the value range of the threshold is (0.2,0.6) bar.

Further, the tire vulcanizer fault self-diagnosis control method further comprises: and comparing the temperature parameter I or the temperature parameter II with a preset highest temperature parameter, and when the temperature parameter I or the temperature parameter II is larger than the highest temperature parameter, triggering an alarm device to give an alarm through a wireless sensor network by the control device.

Further, the value range of the highest temperature parameter is (45,60) DEG C.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.