Linear Motor Assembly With Magnetic Position Sensing
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Solution Overview
Problem
Existing linear motor systems in industrial applications, such as packaging assemblies, face issues with imprecise position control of movable members due to mechanical play and wear, leading to potential handling errors and premature degradation, which can result in defective products and sterility issues.
Innovation Solution
A linear motor system with integrated movement detectors, including magnets and magnetometers, that monitor the position and vibration patterns of movable members in real-time, allowing for early detection of faults and precise control, and a processing unit that calculates and adjusts positions based on detected signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If movement detectors and processing units are integrated into movable members, then position control precision is improved, but device complexity increases
Solution Approach 1:
The movable member is equipped with its own movement detector and processing unit, enabling it to autonomously detect its position and control its movement without external intervention. This self-service approach improves measurement precision while distributing system complexity across multiple independent units rather than requiring a complex centralized control system.
Solution Approach 2:
The patent replaces traditional mechanical position sensing and control mechanisms with electronic movement detectors and processing units. This substitution improves measurement precision through electronic detection while reducing mechanical complexity by eliminating complex mechanical linkages and manual adjustment mechanisms.
2Reliability
If real-time monitoring of movable member positions is implemented, then reliability is improved, but use of energy increases
Solution Approach 1:
The processing unit receives signals from the movement detector and uses this feedback to continuously monitor and adjust the position of the movable member. This feedback mechanism improves reliability by enabling real-time detection and correction of position deviations, while the energy consumption is managed through efficient signal processing and selective actuation only when position correction is needed.
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 accurate monitoring and correction of movable member positions, reducing handling errors and detecting mechanical faults early, thereby improving the quality and sterility of formed packages.
Implementation Method 1
a movement detector configured to transmit a movement signal indicative of movement of the movable member
Implementation Method 2
The linear motor system comprises a track and a movable member coupled to the track
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
There is described a linear motor system, comprising: - a track (1); - at least one movable member (2) coupled to the track (1) and configured to move along said track (1), the at least one movable member (2) comprising: - a first element (20), - a second element (21), relatively movable with respect to the first element (20), and - at least one movement detector (22) configured to transmit a movement signal (M), wherein the movement detector (22) comprises at least one magnet (226) positioned at one of the first (20) or second element (21), and at least one magnetometer (224) positioned at the other of the first (20) or the second element (21); and - a processing unit (5, 23), configured to calculate a movement of the second element (21) with respect to the first element (20) as a function of the movement signal (M) received from the movement detector (22).