Holding Lever Container Centering for Stable High-Speed Weighing
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Solution Overview
Problem
Existing weighing devices for containers in pharmaceutical, chemical, and health sectors face challenges in achieving fast and precise weight measurements due to vibration-induced instability and incorrect centering, leading to inaccurate readings and potential damage during filling and weighing processes.
Innovation Solution
A weighing device with a body and holding levers that symmetrically rotate to center and stabilize containers, allowing precise and fast weight measurements by eliminating vibrations and ensuring vertical positioning, suitable for various container shapes and sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the container is rapidly moved toward the weighing device, then the weighing operation is fast, but the container becomes unstable and difficult to center due to vibrations
Solution Approach 1:
The holding levers are positioned in advance within the compartment to receive and stabilize the container immediately upon its arrival. The levers are pre-configured in a retracted position that allows quick container insertion, then automatically engage to center and stabilize the container before weighing begins, eliminating the need for complex positioning adjustments during the weighing process.
Solution Approach 2:
The holding levers act as an intermediary mechanism between the rapidly moved container and the weighing system. They provide a transitional stabilization phase by mechanically engaging with the container to dampen vibrations and establish proper centering, allowing the container to transition from a moving state to a stable weighing state without compromising measurement accuracy.
2Ease of operation
If the seating has a larger size than the container, then the container can be easily positioned, but the container cannot be properly centered and stabilized
Solution Approach 1:
The holding levers are designed as movable elements that can dynamically adjust their position. They start in a retracted state that allows easy container placement into the larger seating, then move to an engaged state where they contact the container to provide centering forces. This dynamic adjustment allows the system to accommodate both easy positioning and precise centering requirements.
Solution Approach 2:
The holding levers are positioned asymmetrically around the compartment to adapt to different container shapes and sizes. By having levers at different locations and angles, the system can accommodate various container geometries while still achieving proper centering and stabilization, rather than requiring a perfectly symmetric arrangement that would only work for one specific container type.
3Device complexity
If the container is not properly centered, then the weighing operation is simpler, but the weight measurement becomes incorrect
Solution Approach 1:
The holding levers are designed to automatically perform the centering function without requiring external intervention or complex control systems. When the container is placed in the compartment, the levers self-engage through mechanical interaction, using the container's own weight and geometry to trigger the centering action. This self-service approach maintains weighing mechanism simplicity while ensuring accurate centering.
Data Source
AI summary
A weighing device to weigh at least one container suitable to contain one or more substances, including weighing means and a body connected to the weighing means and in which a compartment is defined, configured to temporarily house the container and provided with an aperture defining a passage gap for the introduction of the container inside the compartment along an axis of introduction, in which the body also includes a plurality of holding levers to hold the container inside the compartment.