Apparatus for improved cutting of sheet material
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Solution Overview
Problem
Existing sheet material cutting apparatuses suffer from high noise levels due to vibration frequencies and inadequate holding of overlapped sheets, leading to suboptimal processing and collection issues.
Innovation Solution
Incorporating a movable closure element at the unloading outlet of the cutting chamber that transitions between open and closed positions to securely hold the material and reduce noise, allowing for adjustable distance between the closure element and the material, and featuring automated control and detection systems for safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closure element is introduced to hold overlapped sheets, then material holding improves, but device complexity increases
Solution Approach 1:
A closure element is introduced as an intermediary component between the suction means and the overlapped sheets. This closure element directly contacts and holds the material sheets, while the suction means acts on the closure element rather than directly on the sheets. This mediator approach improves material holding reliability without requiring complex modifications to the existing suction system.
2Reliability
If the closure element is positioned close to the material, then holding effectiveness improves, but safety risk increases due to potential material movement into the cutting chamber
Solution Approach 1:
The closure element serves as a safety intermediary by being positioned between the suction means and the material sheets. It can be placed close to the material for effective holding while the suction forces act on the closure element itself, not directly on the sheets. This prevents direct suction-induced material movement into the cutting chamber, reducing safety risks while maintaining holding effectiveness.
3Reliability
If high suction force is applied to hold overlapped sheets, then material holding improves, but noise level increases
Solution Approach 1:
The closure element acts as a mediator that receives suction forces and transfers them to the material sheets. By positioning the closure element close to the sheets and having it directly contact the material, high holding forces can be achieved with lower suction pressure differentials, thereby reducing the noise generated by the suction system while maintaining effective material holding.
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
The solution effectively reduces noise, improves material holding during cutting, and facilitates efficient collection of cut portions without material movement, enhancing overall processing efficiency and safety.
Implementation Method 1
said closure element presses onto the material, suitably holding it
Implementation Method 2
the material to be cut is held on the conveyor belt by suction means arranged below said conveyor belt
Data Source
Figure 1
Figure 2
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AI summary
An apparatus (1) for cutting at least one sheet of material comprises a cutting chamber (3) provided with a loading inlet (4) and with an unloading outlet (5), the cutting chamber (3) being configured to house at least one portion of the sheet, cutting means for cutting the sheet in the cutting chamber (3), a control unit (C) configured to control the apparatus (1), and a conveyor belt (6) for feeding the sheet into the cutting chamber (3) along a forward direction (Y). Suitably, the apparatus (1) comprises a closure element (10a) at least at the unloading outlet (5) of the cutting chamber (3), the closure element (10a) being movable between an open position, in which at least one portion thereof is at a first distance from the surface of the sheet or from the surface of the conveyor belt (6), allowing access to the cutting chamber (3), and a closed position, in which this portion is at a second distance from the surface of the sheet or from the surface of the conveyor belt (6), the second distance being less than the first distance, these distances being measured along a direction that is substantially orthogonal to the surface of the sheet or to the surface of the conveyor belt.