Annular Frame Stitcher for Tire Building Drum Productivity
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Solution Overview
Problem
The existing stitcher devices require the building drum to be retracted and then advanced to move the carcass band to the take-out position after pressure-bonding, which is time-consuming and reduces productivity.
Innovation Solution
A stitcher device with an annular frame that can surround the building drum and is openable and closable in a peripheral direction, allowing the building drum to be moved to the take-out position without retracting, by opening the frame after pressure-bonding to pass through it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the building drum is retracted and then advanced to move the carcass band to the take-out position after pressure-bonding, then the stitcher device can complete the pressure-bonding operation, but it takes time to take out the carcass band and reduces productivity
Solution Approach 1:
The annular frame is divided into multiple parts that can open and close in the peripheral direction, allowing the building drum to pass through without complete retraction. This segmentation enables the frame to transition from a closed pressure-bonding configuration to an open transport configuration, eliminating the time-consuming retraction-advancement cycle while maintaining structural integrity during operation
Solution Approach 2:
The annular frame is designed with dynamic opening and closing capability in the peripheral direction, transitioning from a static closed structure during pressure-bonding to a dynamic open structure for transport. This dynamic configuration allows the building drum to move directly to the take-out position without retracting, significantly reducing cycle time and improving productivity
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 solution enables the building drum to be moved directly to the carcass band take-out position without retracting, thereby reducing the time required for taking out the carcass band and improving productivity.
Implementation Method 1
a pressure-bonding device provided in the annular frame so as to be able to press the carcass ply from its outer periphery and pressure-bond the carcass ply to the rubber member
Data Source
AI summary
A stitcher device presses a carcass ply to be pressure-bonded to a rubber member after that the carcass ply is wound around an outer periphery of a building drum movable along a drum guide path via a rubber member. The stitcher device includes an annular frame that is able to surround the outer periphery of the building drum by inserting the building drum thereinto, and a pressure-bonding device provided in the annular frame so as to be able to press the carcass ply from its outer periphery and pressure-bond the carcass ply to the rubber member. The annular frame is provided so as to be openable and closable by being divided into a plurality of parts in a peripheral direction.