Magnetic Center Pin Coupling for Automated Powder Press Handling
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Solution Overview
Problem
Existing powder presses face difficulties in automating the removal and insertion of center pins due to their inaccessible location and coaxial arrangement with the lower punch, making manual handling challenging and inefficient.
Innovation Solution
A magnetic coupling system is introduced, comprising two coupling elements connected to the center pin and lower punch, allowing for relative movement and easy removal or insertion by overcoming the attractive force of the magnets, enabling automated handling with a robot gripper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the center pin is arranged in a lower level and extends into the lower punch, then the center pin can provide a recess or opening in the pressed part, but the center pin becomes inaccessible to a robot gripper for automated replacement
Solution Approach 1:
The patent combines the center pin and lower punch into a single integrated component assembly. The coupling element connects both parts together, allowing them to be handled as one unit by the robot gripper, thus solving the accessibility problem while maintaining the center pin's functional integrity
Solution Approach 2:
The coupling element acts as an intermediary component that bridges the center pin and lower punch. It provides a connection point for the robot gripper to access and manipulate the assembly, enabling automated replacement without compromising the center pin's position or function
2Ease of operation
If the center pin and lower punch are firmly connected, then they can be removed together as a unit, but relative movement between them is lost which is necessary for their function
Solution Approach 1:
The coupling element is designed with dynamic characteristics that allow it to provide firm connection during pressing operations while permitting relative movement when needed. The magnetic coupling strength can be adjusted to balance between holding force and movement capability
Solution Approach 2:
The magnetic coupling strength parameter can be adjusted by changing magnet size, material, or arrangement to achieve the optimal balance between firm connection for unified removal and sufficient attraction to allow controlled relative movement during operation
3Extent of automation
If a magnetic coupling is used to connect the center pin and lower punch, then automated handling becomes possible, but the construction becomes more complex
Solution Approach 1:
The patent replaces complex mechanical coupling mechanisms with a magnetic coupling system. This substitution simplifies the overall construction by eliminating the need for mechanical interlocking components, fasteners, or actuation mechanisms while enabling automated handling through magnetic attraction and release
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
Facilitates cost-effective, automated, and precise removal and insertion of the center pin, improving the efficiency and simplicity of powder press operations without complex mechanics, and allowing for universal compatibility with different press dimensions.
Implementation Method 1
the clutch being designed as a magnetic coupling and having two coupling elements, and the first coupling element being operatively connected to the center pin and the second coupling element to the lower punch
Data Source
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AI summary
The arrangement has a coupling for directly or indirectly coupling a center pin (15) to a lower punch (12) of a powder press. The coupling is designed as a magnetic coupling and has two coupling elements (20, 30), the first coupling element (20) being operatively connected to the center pin (15) and the second coupling element (30) to the lower punch (12). The magnetic coupling comprises a plurality of permanent magnets (24a, 24b, 33a, 33b) arranged on each coupling element (20, 30). These permanent magnets (24a, 24b, 33a, 33b) are arranged and matched to one another in such a way that when the two coupling elements (20, 30) are coupled, the first coupling element (20) moves under the action of the field lines (57) of the magnets (24a, 24b, 33a, 33b) is automatically rotated into a predetermined angular position relative to the second coupling element (30).