Pendulum Device Eccentric Motion Prevents Mold Adhesion
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Solution Overview
Problem
Conventional plastic material feeders face performance reduction due to melted plastic materials adhering or colliding with molds during transverse movement, and existing solutions with up-and-down movement mechanisms lead to component wear and efficiency loss.
Innovation Solution
A pendulum device utilizing simple harmonic motion, comprising a base, movable member, and driving unit, where the movable member is eccentrically pivoted on a rotating plate to perform a variable accelerating linear motion, allowing the feeder to move in a pendulum motion and increase the distance between the output portion and mold, preventing material adherence and collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the output portion is moved upward relative to the mold to increase distance, then plastic materials are prevented from adhering to or colliding with the mold, but moderate oscillation is generated causing component wear and reduced efficiency
Solution Approach 1:
The patent applies dynamics by transitioning from fixed positioning to dynamic pendulum motion. The output portion is connected via a pendulum mechanism that allows controlled oscillating movement, enabling the system to dynamically adjust the distance between the output portion and mold during operation. This dynamic approach prevents material adherence while managing oscillation effects through the pendulum's natural motion characteristics.
Solution Approach 2:
The patent changes the motion parameter from static to periodic oscillating motion. By implementing pendulum motion with specific amplitude and frequency characteristics, the system achieves variable distance control between the output portion and mold. The parameter change from fixed position to oscillating position prevents material collision while the controlled nature of the oscillation reduces harmful vibrations and component wear.
2Object-affected harmful factors
If direct driving mechanism is used to move the output portion upward, then distance to mold increases preventing material adherence, but oscillation adversely affects material output operation and feeder efficiency
Solution Approach 1:
The pendulum mechanism introduces dynamic motion to the output portion, allowing it to oscillate in a controlled manner during material discharge. This dynamic movement creates variable distance between the output portion and mold, preventing material collision while the rhythmic nature of pendulum motion maintains operational efficiency by avoiding the harmful oscillations associated with direct driving mechanisms.
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
The pendulum device provides a buffering effect, reducing the risk of plastic materials adhering to or colliding with the mold, prolonging component life and improving operational efficiency by minimizing oscillation and the need for manual or computer-controlled velocity control.
Implementation Method 1
the operating end is dragged by the transmission of the rotating plate to perform a simple harmonic motion that is a variable accelerating linear motion relative to the rotating plate
Implementation Method 2
The movable member is eccentrically pivoted on the rotating plate by the force bearing end
Implementation Method 3
a pendulum device utilizing the simple harmonic motion to drive an article to be moved to move
Data Source
AI summary
A pendulum device includes a base. A rotating plate is pivoted on the base. A movable member is eccentrically pivoted on the rotating plate by one of two ends thereof, and the other end of the movable member is for connecting to an article to be operated. A driving unit is at one side of the base. The driving unit is for driving the rotating plate of the base to perform a uniform circular motion. Because of the movable member eccentrically pivoted on the rotating plate, when the operating end is connected to the article, the operating end is dragged by the transmission of the rotating plate to perform a simple harmonic motion that is a variable accelerating linear motion relative to the rotating plate.