Magnet Carriage Transport System with Intersecting Electromagnetic Actuation
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Solution Overview
Problem
Existing transport systems with movable magnet-type linear motors require large installation spaces and increased complexity due to the need for attitude change mechanisms and synchronized position control, limiting moving speed and efficiency in production line processes.
Innovation Solution
A transport system utilizing a carriage with magnets that can move along coils using electromagnetic force, allowing for independent control of the carriage's movement and a movable mechanism to change the state of the work without increasing system size or complexity, by applying forces in intersecting directions using multiple coils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If attitude change mechanisms are installed adjacent to work transport apparatuses for respective processes, then the state of work can be changed during transport, but the installation space increases significantly
Solution Approach 1:
The patent merges the attitude change mechanism with the transport apparatus itself. The movable mechanism is integrated into the carriage structure, allowing the carriage to perform both transport and attitude change functions. This eliminates the need for separate adjacent mechanisms, thereby resolving the contradiction between work state change capability and installation space requirements
Solution Approach 2:
The carriage is designed with multi-functionality, serving both as a transport device and an attitude change device. By equipping the carriage with a movable mechanism that can change the attitude of the work during transport, the system achieves versatile work state change capability without requiring additional dedicated equipment, thus reducing installation space
2Stability of the object's composition
If position control of a plurality of movers is performed along with a mover of a low moving speed, then constant distance between movers can be maintained, but the moving speed of carriage is limited
Solution Approach 1:
The patent implements dynamic control where the control cycle is adaptively adjusted based on the moving speed of the carriage. When the carriage moves at high speed, the control cycle is extended appropriately, allowing the system to maintain stable relative positions without being constrained by low-speed control requirements. This dynamic adjustment resolves the contradiction between maintaining constant distance and achieving high moving speed
3Measurement precision
If real-time position detection and synchronized control of drive timings for plurality of movers is performed, then position control can be achieved, but the system complexity and size increase
Solution Approach 1:
The patent extracts the position detection function from a centralized complex control system and integrates it directly into each carriage unit. Each carriage is equipped with its own position detection means, allowing independent detection and control. This distribution of control functions reduces the overall system complexity and size while maintaining real-time position detection capability
Solution Approach 2:
Each carriage performs self-position-detection and self-control of its drive timing using its own position detection means and control unit. This self-service approach eliminates the need for a complex centralized control system that would require managing and coordinating all carriages, thereby reducing system complexity and size while achieving precise real-time control
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
Enables efficient movement and state change of the work without requiring additional space or complexity, allowing for flexible installation and increased moving speed, reducing processing time and system complexity.
Implementation Method 1
a carriage that has a magnet and is movable in a first direction along the plurality of coils in accordance with electromagnetic force to which the magnet is subjected from the plurality of coils
Implementation Method 2
the carriage has a movable mechanism that is provided so as to be able to interlock with the magnet and is driven by electromagnetic force to which the magnet is subjected in a second direction intersecting with the first direction from the plurality of coils
Data Source
AI summary
A transport system includes a plurality of coils; and a carriage that has a magnet and is movable in a first direction along the plurality of coils in accordance with electromagnetic force to which the magnet is subjected from the plurality of coils, and the carriage has a movable mechanism that is provided so as to be able to interlock with the magnet and is driven by electromagnetic force to which the magnet is subjected in a second direction intersecting with the first direction from the plurality of coils.