Rotary Feed Stone Saw for Variable Thickness and Jam Control
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Solution Overview
Problem
Existing cutting technologies for veneer stones lack efficient and adjustable mechanisms for cutting stones with varying thickness and orientation, leading to suboptimal cutting performance and potential jamming issues.
Innovation Solution
A sawing apparatus featuring a circular saw with a rotatable carousel having adjustable workpiece-holding pockets and a motorized system that allows for precise control of cutting position and speed, enabling efficient cutting of stones with adjustable thickness and orientation, and preventing jamming through load detection and speed adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-position saw blade is used for cutting veneer stones, then the cutting position is stable, but the apparatus cannot handle stones with varying thickness and orientation
Solution Approach 1:
The patent implements a rotatable carousel with multiple workpiece-holding pockets that can rotate to different positions, allowing the workpiece to be oriented at various angles relative to the fixed saw blade. The carousel rotation mechanism enables dynamic adjustment of cutting position and orientation without moving the blade itself, resolving the contradiction between adaptability and device complexity.
2Reliability
If the saw blade rotates at constant speed, then the cutting process is simple, but jamming occurs when cutting stones of varying thickness
Solution Approach 1:
The patent incorporates a motor controller that regulates the rotation speed of the carousel based on feedback from the cutting process. When cutting stones of varying thickness, the controller adjusts the carousel speed to prevent jamming - slowing down when thicker sections are encountered and maintaining higher speed for thinner sections. This feedback-based speed control improves reliability while managing device complexity through automated control.
3Productivity
If manual feeding of workpieces is used, then the apparatus structure is simple, but cutting efficiency is low
Solution Approach 1:
The patent employs a carousel pre-loaded with multiple workpiece-holding pockets containing stones ready for cutting. As the carousel rotates, workpieces are automatically presented to the saw blade in sequence without requiring manual intervention between cuts. This preliminary preparation and automated presentation significantly improves cutting efficiency while the modular carousel design keeps the automated feeding system manageable in complexity.
4Manufacturing precision
If the saw blade is fixed at a single height, then the mechanism is simple, but stones of different thicknesses cannot be cut to precise thicknesses
Solution Approach 1:
The patent implements a height-adjustable saw blade mechanism that can be positioned at different vertical levels to accommodate stones of varying thicknesses. The adjustable height mechanism allows precise control of the cut thickness by positioning the blade at the appropriate height relative to the workpiece, achieving manufacturing precision while using a relatively simple adjustment mechanism rather than a complex multi-component system.
Data Source
AI summary
An apparatus for cutting workpieces has a saw and a carousel. The carousel has a plurality of workpiece-holding pockets and is mounted for rotation about a carousel axis to pass the workpiece-holding pockets from a first position remote of the saw through at least a second position proximate the saw.