Synchronized Transverse Blade Carriage for Wide Sheet Cutting
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Solution Overview
Problem
Existing cutting devices for sheets of solid materials, such as insulating panels, are limited in their ability to perform transverse cutting without restricting the sheet width and often result in reduced cutting rates and increased energy consumption.
Innovation Solution
A cutting device comprising a transverse cutting assembly of discoidal blades driven by a carriage that moves in synchronization with the conveyor speed, allowing for transverse cutting across the entire width of the sheet without width limitations, while optimizing cutting rate and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a rocking motion cutting mechanism is used, then the cutting device can operate with a simple structure, but the sheet width is limited by the amplitude of the rocking motion
Solution Approach 1:
The cutting assembly is divided into multiple independent discoidal blades (first blade, second blade) that can be independently positioned and controlled. Each blade can be lowered or raised independently, allowing the system to handle sheets of any width by activating only the necessary blades, thus removing the width limitation imposed by single-blade rocking mechanisms.
Solution Approach 2:
The cutting device employs dynamic control of blade positions through independent lowering and raising mechanisms. The first and second blades can be dynamically positioned based on the sheet width and cutting requirements, enabling adaptability to various sheet dimensions while maintaining a relatively simple overall structure.
2Productivity
If transverse cutting is performed across the entire sheet width, then the cutting rate increases, but the energy consumption increases
Solution Approach 1:
Instead of continuously operating all cutting blades across the entire sheet width, the system employs partial action by selectively lowering only the necessary blades (first or second blade) based on the actual sheet width and cutting position. This reduces energy consumption while maintaining high cutting rates, as only the required portion of the cutting assembly is activated during each cutting cycle.
3Speed
If the carriage moves at high speed to match conveyor speed, then the cutting synchronization is improved, but the cutting precision may be compromised
Solution Approach 1:
The cutting device incorporates feedback mechanisms through means for orienting the transverse cutting assembly and means for driving the carriage at controlled speeds. The system can sense the position and speed of the conveyor and adjust the carriage movement accordingly, maintaining synchronization while ensuring precise cutting. The independent blade positioning systems also provide feedback control to maintain cutting precision at high speeds.
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 enables efficient transverse cutting of sheets across their entire width, increasing cutting rates and productivity, while optimizing the lifespan of the cutting device and reducing electrical energy consumption.
Implementation Method 1
a first blade of said transverse cutting assembly is driven in rotation to cut the sheet transversely over its entire width
Implementation Method 2
means for driving the carriage in said conveying direction with a driving speed substantially equal - in particular equal - to a conveying speed of the sheet
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a device for cutting a sheet (21) of a non-powdery solid material, driven in movement by a conveyor (2) in a direction, called the conveying direction (5), parallel to a largest dimension of the sheet (21), the cutting device (1) comprising: - a conveyor (2) adapted to be able to drive the sheet of solid material in movement from upstream to downstream in a direction, called the conveying direction (5), parallel to a largest dimension of the sheet (21), - an assembly, called the transverse cutting assembly (6), of at least two discoidal blades (10, 11) each extending in a plane parallel to a direction, called the transverse cutting direction (8), orthogonal to said conveying direction, - at least one carriage (7) supporting said transverse cutting assembly (6),- means (20) for driving the carriage (7) in said conveying direction (5) at a driving speed equal to the conveying speed of the sheet on the conveyor (2) in said conveying direction (5), characterized in that; the carriage (7) comprises means (24) for driving said transverse cutting assembly (6) in displacement over the entire width of the sheet in said transverse cutting direction (8), and in that; said transverse cutting assembly (6) comprises means (25) for orienting said transverse cutting assembly (6) adapted for, in a first direction (9) of displacement of said transverse cutting assembly (6) in said transverse cutting direction (8),maintaining a first blade (10) of said transverse cutting assembly (6) in a lowered position in which the first blade (10) is rotated so as to cut the web (2) transversely across its entire width in the first direction (9) of movement and maintaining a second blade (11) of said transverse cutting assembly in a raised position at a distance from the web so as not to cut the web (2).,