Tire Component Suction Pad Structure to Prevent Suction Marks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional conveying devices used in tire forming apparatuses generate suction marks on tire components due to deformation when held by suction, leading to potential adhesion failure and uniformity issues.
Innovation Solution
A conveying device with an annular frame, suction unit, and decompression device, featuring a suction pad with a stopper that protrudes into the decompression space to prevent excessive deformation, and a communication hole for maintaining suction force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suction pad holds a cylindrical tire component by suction to convey it, then the tire component can be transferred between drums, but the portion held by suction deforms and suction marks are generated on the tire component
Solution Approach 1:
The suction pad is divided into multiple independent suction regions with separate suction holes. This segmentation allows different zones to apply suction independently, distributing the holding force more evenly across the tire component surface and preventing localized deformation that causes suction marks.
Solution Approach 2:
Different regions of the suction pad have different suction characteristics. The suction holes are arranged with varying densities and suction forces in different zones, allowing the pad to adapt to the local curvature and sensitivity of the tire component surface, reducing deformation in critical areas.
2Force
If a suction pad applies strong suction force to hold the tire component, then the tire component can be securely conveyed, but the tire component deforms and suction marks are generated
Solution Approach 1:
The total suction force is distributed across multiple segmented suction regions rather than applied as a single concentrated force. This segmentation reduces the pressure intensity at any one location, preventing deformation while maintaining the overall holding force necessary for secure conveyance.
Solution Approach 2:
The suction force is made dynamically adjustable across different regions of the suction pad. The system can modulate suction intensity in real-time based on the tire component's position and characteristics, applying stronger force where needed for secure holding and weaker force where surface quality is critical.
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
The device effectively suppresses suction mark generation while ensuring high suction force and uniformity, preventing adhesion failure and maintaining tire component integrity.
Implementation Method 1
a suction pad that holds, by suction from the outer diameter side, a cylindrical tire component wound around an outer periphery of a drum
Data Source
AI summary
Provided is a conveying device capable of suppressing suction mark generation even when a suction pad holds a tire component by suction. The conveying device includes an annular frame capable of surrounding an outer periphery of each of a first drum and second drum, and a suction unit provided to the annular frame, in which the suction unit includes a suction pad having a decompression space formed inside thereof and holding a tire component by suction, and multiple movement mechanisms moving the suction pad in a radial direction of the annular frame; and the suction pad includes a coupling portion coupled to the movement mechanism, a bellows portion protruding from the coupling portion, and a stopper protruding from the coupling portion to the decompression space and abutting on the tire component when the tire component is held by suction.