Tape Dispenser Torque Control for Photovoltaic Module Assembly
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Solution Overview
Problem
Existing tape dispensers for photovoltaic modules suffer from poor control over the dispensing process, leading to misalignment, jamming, and improper placement of tape, which can result in electrical shorting and other manufacturing complications.
Innovation Solution
A tape dispenser system with a supply spindle, rewind spindle, and motorized rollers, equipped with tension sensors and torque controllers to maintain precise tension and alignment, along with a gripper system to manage the tape and backing layer, ensuring consistent and accurate tape application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing tape dispensers are used, then the dispensing process is simple, but the control over tape placement and backing layer collection is poor
Solution Approach 1:
The dispenser is divided into separate functional modules: a supply spindle assembly for tape delivery, a take-up spindle assembly for backing layer collection, and a dispenser head for application. This segmentation allows each module to be optimized independently for its specific function, improving overall precision without excessive complexity
Solution Approach 2:
The patent incorporates sensors that detect tape position, tension, and alignment in real-time, providing feedback to control systems. This enables closed-loop control of the dispensing process, ensuring precise tape placement and proper backing layer collection while maintaining manageable system complexity through automated adjustment
2Reliability
If existing tape dispensers are used, then the device is easy to operate, but the control over tape tension and alignment is poor
Solution Approach 1:
The dispenser system automatically adjusts tape tension and alignment through integrated motors and control systems that respond to sensor feedback. The system self-regulates without requiring constant manual intervention, improving reliability while maintaining ease of operation through automated functions
Solution Approach 2:
Manual mechanical adjustment mechanisms are replaced with motorized actuators and electronic control systems. This substitution provides more reliable and precise control over tape tension and alignment while simplifying operation through automated adjustment rather than manual manipulation
3Productivity
If tape is dispensed without proper tension control, then the dispensing process is fast, but misalignment and jamming occur
Solution Approach 1:
The dispenser employs dynamic tension control where motor speeds and torques are continuously adjusted based on real-time feedback from tension sensors and position detectors. This dynamic adjustment maintains optimal tension throughout the dispensing process, enabling high speed operation without sacrificing alignment accuracy or causing jamming
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 system achieves precise tape placement, reduces jamming, and enhances manufacturing efficiency by maintaining optimal tension and alignment, thereby improving the quality and reliability of photovoltaic module assembly.
Implementation Method 1
a motor connected to the rewind spindle and configured to apply tension to a tape liner positioned on the tape liner path
Implementation Method 2
a tension sensor configured to detect a tension on a tape liner and to adjust the torque output of the motor based on the tension on a tape liner detected by the tension sensor
Data Source
AI summary
A tape dispenser includes a torque controller and a take-up cassette.