Tape Feeder Holding Section for Cover Tape Tension
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Solution Overview
Problem
In conventional tape feeders, the cover tape slackens when the power supply is turned off, leading to interference with component pickup operations due to floating tape, which is undesirable.
Innovation Solution
A tape feeder design that includes a peeling section to peel the cover tape, a tension applying section to apply tension using a motor, and a holding section to maintain tension when the power is off, releasing it when turned on, preventing slackening and floating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the power supply of the tape feeder is turned off, then energy consumption is reduced, but the cover tape slackens and floats causing interference with component pickup
Solution Approach 1:
The holding section automatically engages to maintain cover tape tension when the power supply is turned off, without requiring external control or additional energy input. The mechanism self-activates based on the power state change, providing automatic tension maintenance during idle periods.
Solution Approach 2:
The holding section dynamically changes its state based on the power supply condition - engaged when powered off to prevent slackening, and disengaged when powered on to allow normal tension applying operation. This dynamic adaptation resolves the contradiction between energy saving and tension maintenance.
2Reliability
If the holding section maintains cover tape tension when power is off, then cover tape slackening is prevented, but the mechanism complexity increases
Solution Approach 1:
The holding section is integrated with the existing tension applying mechanism, combining the functions of tension application and tension maintenance within a unified structure. This merging approach prevents the need for a completely separate system, thereby limiting the increase in device complexity while still achieving reliable tension maintenance.
3Reliability
If the holding section is added to prevent cover tape slackening, then component pickup reliability is improved, but the device complexity increases
Solution Approach 1:
The holding function is extracted as a distinct section with specific responsibility for tension maintenance during idle periods, separating this function from the continuous tension applying operation. This extraction allows the system to maintain simplicity for the main operation while adding targeted complexity only where needed for reliability during power-off states.
Data Source
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AI summary
A tape feeder that feeds a carrier tape constituted of a bottom tape accommodating multiple components and a cover tape adhered to the bottom tape to supply the components includes a peeling section configured to peel the cover tape from the bottom tape at a position in front of a supply position of the component, a tension applying section configured to pull the cover tape into a predetermined location by driving a motor to collect the cover tape peeled from the bottom tape, and a holding section configured to hold the cover tape between the peeling section and the tension applying section when a power supply of the tape feeder is turned off and to release the holding of the cover tape when the power supply of the tape feeder is turned on.