Tyre Forming Drum Handling Device Rotation Mechanism
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Solution Overview
Problem
Existing tyre production processes and plants are unsuitable for contexts requiring structurally complicated forming drums with expansion and contraction mechanisms, as they face challenges with drum weight and stress during operation, leading to inefficiencies in productivity and flexibility.
Innovation Solution
A handling device engages the forming drum at both ends of its supporting shaft, driving it in rotation simultaneously, reducing the time required for preparation and processing, and allowing for controlled distribution of components, while minimizing bulkiness and friction through a grip assembly and kinematic transmission unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If structurally complicated forming drums with expansion and contraction mechanisms are used, then the tyre production capability is improved, but the drum weight and stress increase
Solution Approach 1:
The forming drum is divided into multiple segments or sections that can expand and contract independently. This segmentation allows the drum to achieve complicated structural configurations for different tyre types without requiring a single heavy monolithic structure, thereby improving adaptability while managing weight.
Solution Approach 2:
The forming drum employs dynamic expansion and contraction mechanisms that allow it to change its structural configuration during operation. This dynamic capability enables the same drum to produce different tyre types by adjusting its shape, eliminating the need for multiple fixed-structure drums and reducing overall system weight.
2Adaptability or versatility
If structurally complicated forming drums with expansion and contraction mechanisms are used, then the tyre production capability is improved, but the stress on the drum increases
Solution Approach 1:
By segmenting the drum structure, the mechanical stress is distributed across multiple sections rather than concentrated in a single structure. This segmentation allows each segment to bear less individual stress while collectively providing the complicated configurations needed for different tyre productions.
Solution Approach 2:
The dynamic expansion and contraction capability allows the drum to adapt its structural rigidity based on operational needs. When high stress is anticipated, the drum can maintain a more rigid configuration; when flexibility is needed, it can adopt a more compliant state, thereby managing stress levels while maintaining production versatility.
3Productivity
If the forming drum is engaged by handling device and transferred between locations, then the productivity is improved, but the preparation time is reduced
Solution Approach 1:
The forming drum is pre-positioned and pre-configured at loading/unloading locations before the actual tyre production cycle begins. This preliminary preparation allows the drum to be ready for immediate operation when transferred to the work location, minimizing preparation time while maintaining high productivity through efficient transfer operations.
Data Source
AI summary
A plant for building tires for vehicle wheels, includes at least one forming drum having a supporting shaft axially projecting from opposite sides relative to a central body. A handling device is adapted to engage the forming drum and transfer it between at least one loading/unloading location and a work location provided for carrying out at least one process working on the forming drum. The handling device includes a grip assembly carrying at least two grip members each engaging the supporting shaft in the vicinity of each of the end portions thereof, and at least one motor associated with at least one of said grip members for driving the forming drum in rotation while the at least one process working is being carried out in the work location.