Spice Grinder Screw Feed and Movable Blade for Leafy Spices
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Solution Overview
Problem
Existing home grinders are limited in grinding spices with large volume and low density, such as leafy or light-weight spices, due to their narrow grinding cavity design, which prevents effective grinding of spices like chilli and bay leaf.
Innovation Solution
A grinder design featuring a moveable blade with a fixed base driven by an external force, connected to a screw rod, and a fixed blade with material holes, allowing for efficient grinding of large volume spices through a combination of cutting and stirring, facilitated by a rotating mechanism and sharp teeth for smooth feeding and discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the grinding cavity is designed to be narrow for compact structure, then the device complexity is reduced, but the grinder cannot handle spices with large volume and low density
Solution Approach 1:
The patent applies the dynamics principle by introducing a movable blade that can move relative to the fixed blade, creating a dynamic grinding cavity. The movable blade is driven by a rotating shaft and can adjust its position to accommodate different spice volumes and densities, allowing the grinder to handle both small-volume high-density spices and large-volume low-density spices effectively.
2Ease of operation
If the grinding cavity is made narrow for compact design, then the device structure is simpler, but spices with large original volume cannot be fed into the grinding cavity
Solution Approach 1:
The patent applies the dimensionality change principle by introducing a vertical dimension to the grinding cavity through the movable blade's up-and-down motion. This allows spices to be fed from the top container portion into the grinding cavity vertically, bypassing the limitation of horizontal cavity width and enabling efficient feeding of large-volume spices without increasing the device's footprint.
3Productivity
If the grinding cavity is designed narrow for compact structure, then manufacturing is easier, but light-weight spices cannot be ground effectively
Solution Approach 1:
The patent applies the preliminary action principle by using the container portion to pre-store and pre-position spices before they enter the grinding cavity. The container acts as a preliminary storage and feeding mechanism, allowing spices to be ready for grinding without requiring complex feeding mechanisms during the actual grinding process, thus maintaining manufacturing simplicity while improving productivity.
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 the convenient grinding of both high-density and low-density spices, including leafy spices, by ensuring effective feeding and grinding, overcoming the limitations of prior grinders and providing fresher, more natural flavor.
Implementation Method 1
a screw rod (6), also called a packing auger located between the container bottle (1) and the moveable blade (5)
Implementation Method 2
a moveable blade (5) located below the fixed blade (4)... a fixed blade (4), structured as a round flat plate matched with the cavity of the casing (2) and provided with a plurality of interconnected material holes (41)
Implementation Method 3
a rotating shaft (7), one end of which is fixedly connected with each convex rib (32) and the other end extending downwards to pass through the shaft hole (43) on the fixed blade and the shaft hole (53) on the moveable blade and finally running out of the shaft hole (61) on the screw rod in turn
Data Source
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AI summary
The present invention relates to a grinder, comprising a container bottle for containing a spice, a grinding component interconnected with the container bottle and used for grinding the spice and a casing for accommodating the grinding component. A feeding mechanism for pushing the spice in the container bottle into the grinding component is further provided between the container bottle and the grinding component in the casing. Compared with the prior art, the design of the feeding mechanism in the present invention provides a solution for feeding of a spice with large volume and/or a relatively smooth spice with small friction in the prior art, so that the grinder provided by the present invention is applicable to not only grinding of a granular spice, but also grinding of a leafy spice with large volume and light weight.