Tape Feeder Tension Detection for Accurate Component Supply
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Solution Overview
Problem
In the component mounting process, when a tape feeder is removed and power is turned off, there is no record of a carrier tape detachment, leading to potential incorrect component mounting if another tape is accidentally mounted, causing erroneous supply of components.
Innovation Solution
A component supplying device with a detector to sense tension on the cover tape and a storage unit to record this tension, which determines the processing operation when power is reintroduced, ensuring accurate component supply by detecting and addressing any changes in tape state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tape feeder is removed and power is turned off during set-up change, then the device can be reconfigured for different components, but the carrier tape state cannot be recorded, leading to potential erroneous component supply
Solution Approach 1:
The detector detects the presence or absence of tension acting on the cover tape before the tape feeder is removed and power is turned off. This preliminary detection and recording of the carrier tape state enables the system to verify whether the carrier tape was properly detached after power restoration, preventing erroneous component supply while maintaining set-up change flexibility
Solution Approach 2:
The determination unit determines whether to execute a recovery operation based on the recorded tension detection results. This feedback mechanism compares the recorded state with the current state after power restoration, enabling the system to identify and correct potential carrier tape detachment issues, thus ensuring component supply accuracy during set-up changes
2Ease of operation
If the carrier tape is not secured during power-off period, then the tape feeder can be easily removed and reconfigured, but the carrier tape may be accidentally detached or replaced, causing incorrect component supply
Solution Approach 1:
The detector records the tension state of the cover tape before the tape feeder is removed. This preliminary recording creates a reference state that enables verification after power restoration, ensuring that the carrier tape has not been accidentally detached or replaced, thus maintaining component placement accuracy while allowing easy reconfiguration
Solution Approach 2:
The determination unit uses the recorded tension detection results to determine whether a recovery operation is needed. This feedback mechanism verifies the carrier tape state after power restoration and triggers corrective actions if detachment is detected, preventing incorrect component supply while maintaining operational ease
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
Prevents erroneous component supply by detecting tension changes on the cover tape after power reintroduction, allowing for corrective actions and ensuring accurate component placement.
Implementation Method 1
a detector which detects presence or absence of tension acting on the cover tape
Data Source
AI summary
A tape feeder (a component supplying device) which transports a carrier tape covered with a cover tape and storing components to a component pick-up position, peels off the cover tape before the component pick-up position, and supplies the stored components to a component mounter, the tape feeder including photo-switch (a detector) which detects presence or absence of tension acting on the cover tape, the cover tape is peeled off from the carrier tape, a feeder storage unit (a storage unit) which stores the presence or absence of tension which is detected by the photo-switch, and an operation determination unit (a determination unit) which determines a processing operation performed when power which is supplied to the tape feeder is reintroduced based on the presence or absence of tension which is detected.