Cigarette Patch Orientation via Turning Device
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Solution Overview
Problem
Existing cigarette-making devices struggle with accurately aligning and wrapping patches of composite thickness, color, shape, or material, leading to misalignment and poor cigarette quality due to positioning errors.
Innovation Solution
A device comprising a feeding unit, conveyor with a rotatable drum, cutting means, and turning devices to correctly orient and cut patches with discrete areas, ensuring the extra thick or differently treated strips are aligned correctly for wrapping, using a combination of fixed and movable supporting members on the conveyor drum to invert and position patches correctly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If patches of composite thickness are used for wrapping, then the cigarette quality can be improved with proper alignment, but positioning errors cause misalignment and reduce manufacturing precision
Solution Approach 1:
The patent applies preliminary action by pre-positioning the patch on the rolling drum before the actual wrapping operation. The patch is fed and positioned on the drum surface in advance, allowing time for alignment correction and ensuring that when wrapping begins, the patch is already in the correct position. This resolves the contradiction by performing alignment准备工作 beforehand, preventing positioning errors during the critical wrapping moment.
Solution Approach 2:
The rolling drum acts as an intermediary element between the patch feeding system and the wrapping process. The drum provides a controlled intermediate stage where patches can be positioned, aligned, and prepared before being applied to the cigarette group. This intermediary mechanism allows for better control over patch placement and improves alignment precision while maintaining reliability.
2Adaptability or versatility
If patches with different colors or materials are used, then product versatility is improved, but color or material differences at the front edge cause quality defects
Solution Approach 1:
The patent extracts or removes the problematic front zone of the patch that contains the color or material difference. By cutting or trimming away this front zone before wrapping, the patch is presented to the cigarette group without the defective area. This resolves the contradiction by separating the useful part of the patch (the uniform rear portion) from the problematic part (the colored or different-material front zone), allowing versatility in patch design while maintaining appearance quality.
Solution Approach 2:
The patent applies local quality by ensuring that only the uniform, defect-free portion of the patch is applied to the visible surface of the cigarette. The patch design allows different materials or colors in specific zones, but the wrapping process is controlled so that the uniform rear zone (free of color or material differences) is positioned at the critical front edge area, while varied zones are placed in non-critical areas or removed entirely.
3Productivity
If high-speed production is maintained, then productivity is improved, but positioning errors increase and misalignment occurs
Solution Approach 1:
The patent applies preliminary action by performing patch positioning and alignment on the rolling drum before the high-speed wrapping operation. The patch is fed, positioned, and aligned in advance during a controlled preliminary stage, then secured for the high-speed wrapping process. This resolves the contradiction by separating the precision positioning task (performed slowly and carefully in advance) from the high-speed production task, allowing both accuracy and productivity to be optimized in their respective stages.
Data Source
Figure 1
Figure 1A
Figure 2
AI summary
A device for rolling smokers' articles such as cigarettes or filters, comprises a feeding unit (2) for feeding a continuous web (100) of wrapping material having a succession of discrete areas (110), a conveyor (3) defining a feed path (P) for the continuous web (100), cutting means (5), located along the feed path (P) and acting in conjunction with the conveyor (3) to cut the continuous web (100) both at zones (120) of the continuous web (100) with the discrete areas (110) and at zones (130) of the continuous web (100) without the discrete areas (110), and at least one turning device (9), active on the feed path (P) and operating on at least one of the patches (200') separated from the continuous web (100) to overturn the patch (200') in such a way as to invert the positions of the front edge and rear edge of the patch (200') with reference to the feed direction of the patch (200') along the feed path (P).