Filter Cigarette Perforation Using Segmented Laser Devices
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Solution Overview
Problem
Current manufacturing processes for filter cigarettes and alternative smoking products lack flexibility and efficiency in producing rod-shaped articles with varying ventilation levels, as they rely on fixed perforation patterns and limited control over air flow ratios.
Innovation Solution
A method involving three independent perforation devices, using laser beams, to create multiple perforation patterns on rod-shaped articles of double and single lengths, allowing for customizable ventilation zones and air flow management during the production process, enabling the creation of filter cigarettes with adjustable ventilation levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed perforation patterns are used in current manufacturing processes, then production simplicity is maintained, but manufacturing flexibility and precision in ventilation control deteriorate
Solution Approach 1:
The patent divides the perforation process into three independent perforation devices, each capable of creating distinct perforation patterns. This segmentation allows each device to be optimized for specific ventilation requirements while maintaining overall system flexibility. The three devices can be independently controlled and configured, enabling precise customization of air flow characteristics without requiring complete system redesign.
Solution Approach 2:
The invention introduces dynamic adjustability through three independently controllable perforation devices that can create variable perforation patterns. This dynamic capability allows the manufacturing system to adapt to different ventilation requirements by adjusting the operation, configuration, or parameters of individual perforation devices, transforming a static fixed-pattern system into a dynamic customizable one.
2Manufacturing precision
If multiple independent perforation devices are introduced to achieve customizable ventilation, then manufacturing precision and flexibility improve, but device complexity increases
Solution Approach 1:
By segmenting the perforation function into three independent devices, each device can be optimized for specific precision requirements. This allows targeted precision control for different ventilation zones or patterns without requiring all devices to achieve maximum precision, thereby managing overall complexity while maintaining high manufacturing precision.
Solution Approach 2:
Each of the three perforation devices can be configured with different local characteristics, such as varying hole sizes, patterns, or densities, to achieve specific ventilation control precision for different regions or product types. This local quality approach allows precise ventilation control tailored to specific needs without uniformly increasing the complexity of all devices.
3Manufacturing precision
If laser beams are used for perforation, then manufacturing precision and air flow control improve, but energy consumption increases
Solution Approach 1:
The patent employs three independent perforation devices instead of one high-power device, allowing the laser energy to be distributed across multiple lower-power units. Each device performs partial perforation action, and the cumulative effect achieves the desired precision without requiring excessive energy from a single source, thereby reducing overall energy consumption while maintaining manufacturing precision.
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
This approach enhances manufacturing flexibility and precision in producing cigarettes with tailored ventilation characteristics, accommodating different multi-segment filters and improving the smoking experience by allowing variable air flow management.
Implementation Method 1
a certain number of holes with a desired total cross-section are applied using laser beams
Implementation Method 2
the perforation is introduced into the wrapping strips using laser beams as coherent radiation, resulting in a very precise, constant zone of desired air permeability
Data Source
Figure 1
AI summary
The invention relates, inter alia, to a method for manufacturing rod-shaped articles for the tobacco processing industry, in particular filter cigarettes or alternative smoking products, wherein rod-shaped articles are conveyed transversely axially by means of conveying devices (126, 128, 123, 124), in particular conveying drums, of a drum arrangement. It is provided that rod-shaped articles of double length are provided with a first perforation pattern by means of a first perforation device (223), in a further step the rod-shaped articles of double length are provided with a second perforation pattern by means of a second perforation device (224), and in a subsequent step the rod-shaped articles of double length are cut into rod-shaped articles of single length, and then the rod-shaped articles of single length are provided with a third perforation pattern by means of a third perforation device (236).