CN-121973488-A - Control method for intelligent shaping of tire vulcanization

CN121973488ACN 121973488 ACN121973488 ACN 121973488ACN-121973488-A

Abstract

The invention belongs to the technical field of tire manufacturing, and discloses a control method for intelligent shaping of tire vulcanization, which comprises the following specific steps: the method comprises the steps of firstly, building an intelligent shaping control hardware system, wherein the hardware system comprises a check valve, a throttling plate, an intelligent regulating valve and an intelligent pressure transformer which are sequentially connected, and each component is connected with a shaping pipeline of a vulcanizing machine in an adaptive manner. By constructing an intelligent shaping control hardware system consisting of a check valve, a throttling plate, an intelligent regulating valve and an intelligent pressure transformer and combining the data processing and instruction issuing functions of an MES system, a closed-loop control logic comprising real-time acquisition, quick uploading, intelligent analysis, accurate execution and continuous optimization is constructed, the quality defects that the transmission shaping pressure control depends on manual experience and cannot dynamically adapt to production changes, meanwhile, the clamping pressure data is accurately captured, the valve state is regulated and controlled in advance, the clamping instantaneous pressure peak value is restrained, and the tire rubber edge and uniformity deterioration caused by excessive extrusion of a tire blank are overcome.

Inventors

HUANG FENG
ZHU BAOLI
LIU DEQIANG
CAO XUELIANG
Ou Shengyong

Assignees

广西玲珑轮胎有限公司

Dates

Publication Date: 20260505
Application Date: 20260122

Claims (9)

1. The intelligent shaping control method for tire vulcanization is characterized by comprising the following specific steps: Firstly, constructing an intelligent shaping control hardware system, wherein the hardware system comprises a check valve, a throttling plate, an intelligent regulating valve and an intelligent pressure transformer which are sequentially connected, and each component is connected with a shaping pipeline of a vulcanizing machine in an adaptive manner; Step two, data acquisition, namely acquiring shaping pressure data in the capsule in real time through intelligent pressure change in the tire vulcanization shaping process, wherein the shaping pressure data comprises real-time pressure values in the shaping process and pressure peak value data at the moment of die assembly; step three, uploading data, namely uploading pressure data acquired by intelligent pressure changes and tire uniformity detection data to an MES system; Step four, data operation analysis and optimization parameter generation, wherein the MES system carries out identification operation on uploaded data, judges whether the setting pressure accords with a preset standard, and automatically generates optimized setting pressure parameters and opening sensitivity parameters of the intelligent regulating valve if the data exceeds the standard; Step five, optimizing parameter execution and pressure peak suppression, wherein the MES system transmits the optimized parameters to an intelligent control system, and the air inflow and the air displacement of the shaping pipeline are adjusted through an intelligent adjusting valve, so that automatic matching adjustment of shaping pressure is realized, and meanwhile, the pressure peak at the moment of die assembly is suppressed; and step six, repeating the step two to the step five, continuously and dynamically optimizing the shaping pressure control parameters, and ensuring the stability of the tire vulcanization shaping process.
2. The method for intelligently shaping vulcanized tires according to claim 1, wherein in the first step, the check valve is used for preventing gas in the shaping pipeline from flowing back, the throttling plate is used for assisting in stabilizing the gas flow speed in the pipeline, the intelligent regulating valve is used for accurately receiving an optimized parameter instruction, the air inflow and the air displacement of the shaping pipeline are regulated, and the intelligent pressure change is used for capturing key data of shaping pressure values and instantaneous pressure peak values of die closing in the capsule in real time.
3. The method for intelligently shaping tire vulcanization according to claim 1, wherein the intelligent pressure change sampling frequency in the second step is not lower than 10Hz, and the accurate capturing of instantaneous pressure peaks at the moment of mold closing is ensured.
4. The method for intelligently shaping a tire according to claim 1, wherein the tire uniformity detection data in the third step is key performance index data of radial force fluctuation and lateral force fluctuation obtained by special detection equipment after tire vulcanization is completed.
5. The method for intelligently shaping tire vulcanization according to claim 1, wherein the data uploading time in the third step is not more than 1s, and an encryption transmission protocol is adopted to ensure that pressure data and tire uniformity detection data are not tampered and lost in the uploading process, so that the safety and the integrity of data transmission are ensured.
6. The method for intelligently shaping a tire according to claim 1, wherein the determination criteria of the MES system in the fourth step are based on pressure threshold ranges and tire uniformity qualification criteria preset by different tire specifications, and the pressure threshold ranges are calibrated in advance according to tire size and tread structure parameters.
7. The method of claim 1, wherein the intelligent valve has an adjustment response time of not more than 0.5s, so as to respond to the parameter command issued by the MES system in time.
8. The method of claim 1, wherein the intelligent control system is linked with a mold closing motion sensor of a vulcanizing machine, and the initial state of the intelligent adjusting valve is adjusted in advance 0.3-0.5s before the mold closing motion is started, so as to further inhibit the pressure peak value at the moment of mold closing.
9. The method for intelligently shaping tire vulcanization according to claim 1, further comprising an abnormality alarming step, wherein when pressure data collected by intelligent pressure change exceeds a preset threshold value for 3 times continuously or 5 pieces of tire uniformity detection data are failed, an MES system automatically triggers an audible and visual alarm, abnormal data and a preliminary diagnosis result are pushed to a manager terminal, meanwhile, a vulcanizing machine shaping procedure is suspended, production is resumed after parameter re-optimization confirmation, and batch quality defects are avoided.

Description

Control method for intelligent shaping of tire vulcanization Technical Field The invention belongs to the technical field of tire manufacturing, and particularly relates to a control method for intelligent shaping of tire vulcanization. Background Tire vulcanization is a core process of tire manufacture, namely a process of placing an uncrosslinked rubber tire blank in a vulcanization mold, introducing steam, nitrogen and other mediums, and under the preset conditions of temperature, pressure and time, enabling rubber molecules to undergo a crosslinking reaction to form a three-dimensional reticular structure, and enabling the tire blank to be attached to a mold cavity for molding. In the vulcanization process of semi-steel radial tires, the tire blank shaping is a key step, the tire blank is inflated by filling nitrogen or steam into a bladder to fix the tire blank at a station of a vulcanizing machine, the bladder and the tire blank are discharged, the quality of the shaping process directly influences key performance indexes such as uniformity, dynamic balance and the like of a final tire product, the traditional vulcanizing machine shaping pressure control method mainly depends on manual experience, an operator presets a fixed shaping pressure value in a control system according to different tire specifications, however, the method has the remarkable defects that the pressure cannot be automatically adjusted according to dynamic changes in the actual production process, so that the shaping effect is unstable, and secondly, the pressure peak value is formed at the moment when the tire blank and the bladder are pressed down by a vulcanizing machine, the pressure peak value of the bladder is not controlled by the preset pressure in the prior stage, the tire blank is easy to be excessively extruded or deformed locally, and the rubber edge, the uniformity and the like of the finished tire is easy to appear, so that the intelligent control method for automatically and precisely controlling the shaping peak value, particularly inhibiting the instantaneous shaping pressure peak value, is needed. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a control method for intelligent shaping of tire vulcanization, which aims to solve the problems in the prior art. In order to achieve the purpose, the invention provides the following technical scheme that the control method for intelligent shaping of tire vulcanization comprises the following specific steps: Firstly, constructing an intelligent shaping control hardware system, wherein the hardware system comprises a check valve, a throttling plate, an intelligent regulating valve and an intelligent pressure transformer which are sequentially connected, and each component is connected with a shaping pipeline of a vulcanizing machine in an adaptive manner; Step two, data acquisition, namely acquiring shaping pressure data in the capsule in real time through intelligent pressure change in the tire vulcanization shaping process, wherein the shaping pressure data comprises real-time pressure values in the shaping process and pressure peak value data at the moment of die assembly; step three, uploading data, namely uploading pressure data acquired by intelligent pressure changes and tire uniformity detection data to an MES system; Step four, data operation analysis and optimization parameter generation, wherein the MES system carries out identification operation on uploaded data, judges whether the setting pressure accords with a preset standard, and automatically generates optimized setting pressure parameters and opening sensitivity parameters of the intelligent regulating valve if the data exceeds the standard; Step five, optimizing parameter execution and pressure peak suppression, wherein the MES system transmits the optimized parameters to an intelligent control system, and the air inflow and the air displacement of the shaping pipeline are adjusted through an intelligent adjusting valve, so that automatic matching adjustment of shaping pressure is realized, and meanwhile, the pressure peak at the moment of die assembly is suppressed; and step six, repeating the step two to the step five, continuously and dynamically optimizing the shaping pressure control parameters, and ensuring the stability of the tire vulcanization shaping process. Preferably, in the first step, the check valve is used for preventing gas in the shaping pipeline from flowing back, the throttling plate is used for assisting in stabilizing the air flow speed in the pipeline, the intelligent regulating valve is used for accurately receiving the optimized parameter instruction, the air inflow and the air displacement of the shaping pipeline are regulated, and the intelligent pressure change is used for capturing the shaping pressure value in the capsule and the instantaneous pressure peak key data of the die closing in real time. Preferably, the intelligent pressure