Tape Feeding Device Motor Step Alignment
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Solution Overview
Problem
The electronic component mounting device requires complex control to align the storage section with the pickup position by feeding the tape at a minimum pitch, necessitating multiple feedings and reliance on imaging means for position determination.
Innovation Solution
A tape feeding device with a sprocket and motor, including a movement amount calculation section and stop position adjustment section, which calculates and adjusts the tape movement based on motor steps to align the component at the pickup position without imaging means, using a detection sensor to detect tooth portions for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the tape is fed at the minimum pitch to repair pitch-feeding deviation, then the position alignment between storage section and pickup position can be achieved, but the control process becomes complicated and requires multiple feedings
Solution Approach 1:
The patent replaces the optical detection system (camera) with a mechanical detection system using a detection sensor that directly detects the position of tooth portions on the sprocket. This substitution simplifies the control process by providing direct mechanical position feedback instead of requiring image processing and complex control algorithms to achieve the same positioning accuracy.
Solution Approach 2:
The detection sensor is configured to automatically detect the position of tooth portions during the feeding process, enabling the system to self-correct pitch-feeding deviations without requiring external imaging equipment or complex control interventions. The motor step count combined with mechanical detection creates a self-regulating positioning system.
2Measurement precision
If imaging means (camera) is used to determine storage section position, then position detection can be achieved, but the device complexity and control requirements increase
Solution Approach 1:
The patent replaces the optical detection system (camera) with a mechanical detection system using a detection sensor that directly detects the position of tooth portions on the sprocket. This substitution simplifies the control process by providing direct mechanical position feedback instead of requiring image processing and complex control algorithms to achieve the same positioning accuracy.
Solution Approach 2:
The detection sensor acts as an intermediary between the motor and the control system, providing direct mechanical position feedback through tooth portion detection. This intermediary mechanism translates mechanical position into detectable signals without requiring complex optical systems or image processing, thereby reducing system complexity while maintaining measurement precision.
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 solution simplifies the control process by adjusting the tape feeding to align the component accurately at the pickup position, eliminating the need for imaging and reducing the complexity of pitch-feeding repairs.
Implementation Method 1
a detection sensor configured to detect the number of steps of the motor by detecting one tooth portion present at a detection position
Data Source
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AI summary
The tape feeding device is applied to a tape feeder including a sprocket and a motor and includes a movement amount calculation section and a stop position adjustment section. The movement amount calculation section calculates a movement amount of the carrier tape moved during execution of continuous feeding, continuously pitch-feeding the carrier tape at a predetermined pitch, based on the number of steps of the motor during execution of the continuous feeding. The stop position adjustment section adjusts the movement amount of the carrier tape which is less than the predetermined pitch so that the component is positioned at a pickup position of the component based on the movement amount calculated by the movement amount calculation section.