Variable-Curvature Cam Separator for Thick Ceramic Tiles
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Solution Overview
Problem
Existing manual ceramic cutter separator devices apply a constant force throughout the cutting process, regardless of ceramic piece thickness, making it difficult to efficiently break thicker tiles.
Innovation Solution
A cam profile with non-uniform curvature that provides a greater normal force at the beginning of the cutting path and a lesser force at the end, varying the movement of the tilting lever based on the cam's rotation position to accommodate different ceramic thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cam with uniform curvature profile is used, then the movement of the tilting lever is proportional to the cam rotation angle throughout the rotation, but the normal force transmitted to the lever remains constant, making it difficult to break thicker tiles
Solution Approach 1:
The cam profile curvature is changed from uniform to non-uniform, specifically with greater curvature in the initial segment and lesser curvature in the final segment. This parameter change causes the cam to transmit greater normal force during the initial phase of lever movement and lesser force during the final phase, enabling easier breaking of thicker ceramic pieces while maintaining control throughout the cutting process
2Adaptability or versatility
If a cam with non-uniform curvature profile is used, then the normal force varies to accommodate different ceramic thicknesses, but the relationship between lever movement and cam rotation angle becomes non-proportional
Solution Approach 1:
Different segments of the cam profile are given different curvature characteristics to perform different functions. The initial segment has greater curvature to provide high normal force for breaking thicker ceramics, while the final segment has lesser curvature to provide controlled force for completing the break. This local differentiation of cam profile quality enables adaptation to varying ceramic thicknesses while maintaining precise control over the lever movement throughout the cutting process
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 easier separation of thicker ceramic pieces by applying more force initially and less force towards the end of the cutting process, improving the device's ability to handle varying tile thicknesses.
Implementation Method 1
an actuation cam for the mentioned tilting lever... the cam transmits a force to the cam follower of the tilting lever... the cam profile has a curvature that changes in a non-uniform way along the cam profile
Data Source
Figure 1~3
Figure 4
AI summary
Separator device applicable to manual ceramic cutters, which comprises: a tilting lever (2) and an actuation cam (3) provided with a cam profile (3) with a non-uniform variation in its radius of curvature and that provides a variable relationship between the rotation of the cam and the movement of the first end of the tilting lever, depending on the rotational position of the cam, in such a way that: - when the cam (3) rotates (β1) with a certain amplitude in an initial segment of its path, the first end of the tilting lever (2) completes a movement (d1) of a certain length; and - when the cam rotates (β2), with the same amplitude as β1, but in the final segment of its path, the first end of the tilting lever (2) completes a movement (d2) that is longer than the movement (d1).