Assembly comprising twist off container and micro puree machine
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Solution Overview
Problem
Existing micro puree machines face issues with blade sticking to the power shaft due to ice buildup, requiring significant force to uncouple the container, and are impractical for preparing non-dessert food products.
Innovation Solution
A twist-off container design with protrusions and ramped slots forming a helical bayonet mount, allowing both axial and rotational movement relative to the coupling, facilitating easy disengagement of the blade from the power shaft with reduced force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the container is rotated to uncouple it from the machine, then the blade disengages from the power shaft, but significant force is required due to ice buildup between the blade and power shaft
Solution Approach 1:
The coupling mechanism incorporates both rotational and axial movement dimensions. When the container is rotated to uncouple, the helical ramped slot guides the protrusion to move both rotationally and axially outward, allowing the blade to disengage from the power shaft with less force than pure rotational movement would require
2Productivity
If the blade is designed to engage the power shaft for effective blending, then blending performance is improved, but the blade becomes stuck to the power shaft due to ice buildup
Solution Approach 1:
The disengagement mechanism utilizes axial movement in addition to rotation. The helical ramped slot converts rotational motion into combined rotational and axial displacement, allowing the blade to move axially away from the power shaft during uncoupling, preventing ice buildup from causing the blade to stick
3Device complexity
If a simple rotational coupling mechanism is used, then the device complexity is reduced, but the container cannot move axially to allow blade disengagement with reduced force
Solution Approach 1:
The helical ramped slot is pre-configured in the coupling mechanism to guide the protrusion along a specific path. When the container is rotated, the geometry of the ramped slot automatically produces the necessary axial movement, eliminating the need for additional actuators or complex mechanisms while ensuring proper disengagement
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A twist off container and coupling assembly of a micro puree machine includes a container and a coupling on the micro puree machine. An interior surface of the coupling has at least one ramped slot that is angled relative to a lower annular surface of the coupling. The container has at least one protrusion correspondingly angled relative to an upper annular surface of the container. The protrusion is configured to engage the slot when the container is rotated in a clockwise direction and to disengage from the slot when the container is rotated in a counter-clockwise direction. When the container is rotated, the container moves both axially and rotationally relative to the coupling.