Radiation Pyrometer for Tire Vulcanization Temperature Control
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Solution Overview
Problem
Conventional temperature measurement methods in tire vulcanization processes are inadequate as they measure temperature far away from the tire, leading to incorrect assumptions about temperature distribution and homogeneity, resulting in suboptimal vulcanization and energy inefficiency.
Innovation Solution
A radiation pyrometer is used to directly measure temperatures at critical points inside the vulcanization bellows, allowing for precise temperature control through adjustments in steam pressure and chuff length, ensuring accurate heat transfer to the tire.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If temperature sensors are arranged in pipes or on the central mechanism, then the device complexity is reduced, but the measurement precision deteriorates because temperature is measured far away from the tire
Solution Approach 1:
A radiation pyrometer is introduced as an intermediary measurement device that can measure temperature remotely through thermal radiation without requiring physical contact with the heating medium or bellows, thus maintaining measurement precision while avoiding the complexity of placing sensors directly in the heating environment
Solution Approach 2:
The patent replaces mechanical contact-based temperature sensors with a radiation pyrometer that measures temperature through electromagnetic radiation, eliminating the need for physical sensor placement in the heating medium while maintaining accurate temperature measurement at the bellows surface
2Measurement precision
If temperature sensors are placed in the heating medium cavity, then the measurement precision improves, but the device complexity increases and the sensors are exposed to harsh thermal conditions
Solution Approach 1:
The patent replaces mechanical contact-based temperature sensors with a radiation pyrometer that measures temperature through electromagnetic radiation, eliminating the need for physical sensor placement in the heating medium while maintaining accurate temperature measurement at the bellows surface
3Device complexity
If conventional temperature measurement methods are used, then the device complexity is low, but the productivity decreases due to longer heating times and energy inefficiency
Solution Approach 1:
The radiation pyrometer provides real-time temperature feedback from the bellows surface, enabling closed-loop control of the heating process that optimizes energy consumption and reduces heating time, thereby improving productivity while maintaining a relatively simple device configuration
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures high product quality tires by maintaining precise temperature control at relevant heating points, leading to energy savings and reduced heating times.
Implementation Method 1
The radiation pyrometer measures the temperature on the inner side of the bellows
Implementation Method 2
The green tire is supplied with the necessary vulcanization temperature via the bellows wall of the bellows
Implementation Method 3
The heating press is operated with a vaporous heating medium... subjected to a vaporous heating medium
Data Source
Figure 1~2
AI summary
The invention relates to a device for vulcanizing vehicle tires using a heating press. In order to provide a device for vulcanizing vehicle tires, by means of which the measurement of the vulcanization temperature at the relevant locations of the internal heater is performed, the invention proposes that a temperature sensor in the form of a spectral pyrometer (4) is disposed in the bellows cavity (7), by means of which an indirect temperature measurement takes place at at least one location at the interior of the bellows (8) by means of a measurement of the radiant energy (10) emitted by the interior of the bellows (8).