Oscillating Dual-Blade Slab Cutting for Tight Adjacent Spacing
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Solution Overview
Problem
Existing cutting methods for stone and ceramic slabs result in excessive distance between slabs, increasing machining time and reducing the number of slabs that can be arranged adjacent to each other during machining.
Innovation Solution
A cutting method using a cutting head with a tool-holder frame that supports two vertical and aligned blades, allowing the frame to oscillate and vary the blades' height and cutting depth, enabling efficient pre-cutting and cutting of slabs with reduced distance between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the distance between slabs is reduced to increase the number of slabs arranged adjacent to each other, then productivity is improved, but the blade may interact with the transversal peripheral edge of the subsequent slab causing damage
Solution Approach 1:
The cutting head employs dynamic height adjustment of blades during the cutting process. The first blade is raised after completing the cut on the first slab, and the second blade is lowered to cut the second slab. This dynamic adjustment allows the slabs to be positioned closer together than the blade diameter would normally require, increasing productivity while preventing blade interaction with subsequent slabs.
Solution Approach 2:
The method performs preliminary cutting with the first blade at a first height position, then adjusts the blade heights before proceeding with the second blade cutting. This preliminary action sequence ensures that when the second blade cuts the second slab, the first blade is already positioned at a second height that prevents interaction with the second slab's edge.
2Manufacturing precision
If independent vertical movement means are provided for each blade to vary cutting depth, then cutting precision is improved, but manufacturing cost increases
Solution Approach 1:
Instead of providing independent vertical movement means for each blade, the invention merges the control mechanism by using a single vertical movement means that controls the relative height positioning of multiple blades simultaneously. This reduces manufacturing complexity and cost while still achieving the required cutting precision through coordinated blade positioning.
Solution Approach 2:
The vertical movement means serves multiple functions: it positions the first blade for cutting the first slab, then positions both blades for the subsequent cutting operation on the second slab. This multi-functional mechanism eliminates the need for separate adjustment devices for each blade, reducing manufacturing cost while maintaining cutting precision.
Data Source
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AI summary
A method for cutting slabs (L) made of stone and/or ceramic material using a cutting head (1 ) having a frame (11 ) mounted on a carriage (9) movable above the slabs (L), wherein the frame (11) supports at least one first (12) and one second blade (13) which are substantially vertical and aligned, and having centres (C1, C2) spaced apart by a distance (V), the frame (11) being hinged to the carriage (9) by means of a horizontal pin (16) so as to allow the oscillation of the frame (11) and change the relative height (hR) of the blades (12, 13) and the cutting depth (h1, h2) thereof. The method comprises the following steps: a) first inclination of the frame (11) by a first angle (α1) with respect to a first slab (L1) to be cut so that the first blade (12) is lower than the second (13) by a first relative height (hR1); b) pre-cutting the first slab (L1) using the first blade (12); c) second inclination of the frame (11) by a second angle (α2) with respect to first slab (L1) so that the first blade (12) is higher than the second (13) of a second height (hR2); d) cutting the first slab (L1) using the second blade (13); e) third inclination of the frame (11) by a third angle (α3) with respect to first slab (L1) so that the first blade (12) is higher than the second (13) by a third height (hR3) greater than the second height (hR2) so as to prevent the first blade (12) from interacting with a second slab (L2) arranged adjacent to the first slab (L1) when cutting the first slab (L1) in step d).