Chip Feeder With Intermittent Suction and Vibration
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Solution Overview
Problem
Existing chip feeders face inefficiencies in feeding electronic components into accommodating portions due to vacuum suction issues, where components are blocked by other chips, reducing the probability of successful feeding and increasing processing time.
Innovation Solution
A chip feeder with a feed pallet that applies vibration and intermittent suction, synchronized with amplitude detection to maximize suction pressure when vibration amplitude is high and minimize it when amplitude is low, allowing efficient feeding by alternating suction states to facilitate chip movement and reduce blockages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vacuum suction is continuously applied through the accommodating portion, then chips are drawn into the accommodating portion, but chips are held fixed and blocked by other chips, reducing feeding probability
Solution Approach 1:
The suction unit alternates between suction and non-suction states in a periodic manner. During suction states, chips are drawn into accommodating portions; during non-suction states, chips that were blocked can move freely. This periodic switching resolves the contradiction by allowing both chip attraction and chip movement to occur at different times, improving overall feeding probability while maintaining productivity.
2Productivity
If vacuum suction is applied to feed chips, then chips are drawn into accommodating portions, but chips blocking the holes are held fixed, preventing other chips from being fed
Solution Approach 1:
By periodically switching between suction and non-suction states, the system enables chips to move freely during non-suction periods while still achieving rapid feeding during suction periods. This resolves the contradiction between feeding speed and chip movement freedom.
Solution Approach 2:
The suction state is made dynamic rather than static, allowing the suction force to change over time. This dynamic control enables the system to adapt between holding chips firmly (when suction is active) and allowing chip movement (when suction is inactive), resolving the contradiction between feeding efficiency and movement freedom.
3Productivity
If extended suction time is used to improve feeding probability, then more chips can be fed, but blocked chips continue to obstruct accommodating portions
Solution Approach 1:
Instead of extending continuous suction time, the system uses periodic suction with alternating non-suction intervals. During non-suction intervals, blocked chips can move away from accommodating portions, clearing the way for subsequent feeding cycles. This approach increases total chips fed without proportionally increasing processing time, as the periodic nature maintains an efficient rhythm.
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 approach significantly improves the efficiency and productivity of chip feeding by ensuring chips are fed into accommodating portions efficiently, reducing processing time and increasing the filling percentage of chips into the feed pallet.
Implementation Method 1
a suction unit configured to perform suction through the accommodating portion and help the chip to be fed into the accommodating portion
Implementation Method 2
a vibration application unit configured to apply vibration to the feed pallet, and wherein the chip, which has been supplied on the feed pallet, is to be fed into the accommodating portion by vibration that is applied to the feed pallet
Data Source
AI summary
A chip feeder includes a feed pallet in which accommodating portions, in which chips are to be accommodated, are provided, a suction unit configured to perform suction through the accommodating portions, a vibration application unit configured to apply vibration to the feed pallet, a control unit that is configured and programmed to periodically switch between a state where the suction is being performed and a state where the suction is not performed in a state where the chips have been supplied on the feed pallet, and where the vibration has been applied to the feed pallet. The chips supplied on the feed pallet are to be fed into the accommodating portions by the vibration and the suction. The suction is performed at least once during one period of the vibration.