Cylindrical Member Winding Alignment via Pre-Winding Sensor Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in manufacturing tires is forming belt-like members into a cylindrical shape without meandering, which leads to distortion and inconsistent quality.
Innovation Solution
A method and device that use a pre-winding position sensor to detect the member reference line and a controller to move the forming drum in the drum width direction, ensuring the member reference line and drum reference line are aligned, allowing the belt-like member to be wound accurately into a cylindrical shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the belt-like member is wound around the forming drum without position detection and alignment control, then the winding process is simple and fast, but the cylindrical member has distortion and meandering in the drum width direction
Solution Approach 1:
The patent applies preliminary action by detecting the position of the member reference line on the belt-like member before winding begins, using a pre-winding position sensor. This allows the system to pre-align the belt-like member with the drum reference line, ensuring accurate positioning before the winding process starts, thereby preventing meandering and distortion in the final cylindrical shape.
Solution Approach 2:
The patent implements feedback control by using a pre-winding position sensor to detect the actual position of the member reference line, comparing it with the desired position, and then controlling the forming drum to move in the drum width direction to correct any misalignment. This closed-loop feedback ensures accurate alignment between the belt-like member and the forming drum during winding.
2Measurement precision
If the forming drum is moved in the drum width direction to align reference lines, then the alignment precision is improved, but the control system complexity increases
Solution Approach 1:
The control system uses feedback from the pre-winding position sensor to detect the position of the member reference line and automatically adjusts the forming drum position in the drum width direction. This feedback mechanism enables precise alignment of reference lines while keeping the control logic relatively simple, as it only requires comparing sensor data with the desired position and making corrective movements.
Solution Approach 2:
The patent replaces manual alignment operations with an automated control system that uses sensor detection and automatic drum positioning. This substitution of mechanical alignment procedures with an automated sensing and control system improves measurement precision while managing complexity through automation rather than manual intervention.
3Manufacturing precision
If a pre-winding position sensor and controller are added to detect and align reference lines, then the cylindrical member formation accuracy is improved, but the manufacturing process complexity increases
Solution Approach 1:
The pre-winding position sensor and controller are added to perform preliminary detection and alignment of the member reference line before the winding process begins. This preliminary action ensures that the belt-like member is correctly positioned on the forming drum, improving cylindrical member formation accuracy by preventing meandering and distortion during winding.
Solution Approach 2:
The added controller receives feedback from the pre-winding position sensor about the member reference line position and automatically adjusts the forming drum position in the drum width direction. This feedback control mechanism improves manufacturing precision by ensuring accurate alignment while managing process complexity through automated correction rather than requiring complex manual alignment procedures.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided are a method and device for forming a cylindrical member in which belt-like members can be accurately formed into a cylindrical shape without meandering. A pre-winding position sensor (4) detects a position of a member reference line (L1) extending in a longitudinal direction of a belt-like member (8a) along the entire length of the belt-like member (8a) in the longitudinal direction thereof before the belt-like member (8a) is placed on a transport conveyor belt (3), transported to a forming drum (2), and wound around the forming drum (2). The belt-like member (8a) is wound around the forming drum (2) and formed in a cylindrical shape while the forming drum (2) is relatively moved in the drum width direction with respect to the transport conveyor belt (3) by a controller (6) and the member reference line (L1), referred to when winding the belt-like member (8a) around the forming drum (2), and a drum reference line (DL) are matched, on the basis of the detection data and a position data of the drum reference line (DL) orthogonal to the drum axial center (DX) of the forming drum (2) and set in a predetermined position of the drum width direction.