Applicator Device for Transverse Strip Placement on Tobacco Web
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Solution Overview
Problem
The high cost and complexity of manufacturing machines for smokers' articles arise from the need for expensive special rolls of web material with pre-applied annular inserts, which require intricate synchronizing systems to position strips correctly during wrapping, leading to inefficient production processes.
Innovation Solution
An apparatus that applies strips of material with adhesive to a web as it is being unwound, using applicator devices and detector systems to ensure precise positioning and spacing, allowing for flexible material choice and efficient assembly of cylindrical smokers' articles without pre-printed rolls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If pre-applied annular inserts on web rolls are used, then positioning accuracy is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent divides the web handling system into separate functional modules: a standard web supply roll, a separate applicator device for annular inserts, and a cutter. This segmentation eliminates the need for complex synchronizing systems while maintaining positioning accuracy through independent control of each module.
Solution Approach 2:
The patent introduces an intermediary applicator device that receives the web from a standard roll and applies annular inserts at predetermined positions. This intermediary component decouples the web supply from the insert application process, simplifying the overall system while ensuring accurate positioning.
2Manufacturing precision
If pre-applied annular inserts on web rolls are used, then positioning accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The patent uses inexpensive, disposable annular inserts that are applied individually or in batches to the web. These simple components can be made from cheap materials and discarded after use, eliminating the need for expensive pre-printed web rolls while maintaining positioning accuracy.
Solution Approach 2:
The applicator device acts as an intermediary that takes standard web material and adds the annular inserts at the required positions. This approach allows the use of inexpensive standard web rolls rather than expensive custom-prepared rolls, significantly reducing material costs.
3Ease of manufacture
If standard web rolls without pre-applied inserts are used, then manufacturing cost and simplicity are improved, but positioning accuracy deteriorates
Solution Approach 1:
The patent incorporates detectors that monitor the position of the web and provide feedback to the applicator device. This feedback mechanism ensures that annular inserts are applied at the correct predetermined positions on the web, maintaining high positioning accuracy despite using simple standard web rolls.
Solution Approach 2:
The patent pre-programmes the applicator device with the required insert positions before production begins. This preliminary setup allows the system to automatically apply inserts at the correct positions throughout production, ensuring consistent positioning accuracy without complex real-time synchronization.
4Manufacturing precision
If complex synchronizing systems are used, then positioning accuracy is improved, but productivity decreases
Solution Approach 1:
The patent pre-configures the applicator device with all necessary positioning information before production starts. This eliminates the need for complex real-time synchronization during operation, allowing the web to move continuously at high speed while inserts are applied automatically at the correct positions, thus maintaining both accuracy and productivity.
Solution Approach 2:
By separating the web supply, insert application, and cutting functions into independent modules, the system allows each component to operate at optimal speed without being constrained by synchronization requirements. This modular approach eliminates bottlenecks and maintains high productivity while ensuring accurate insert positioning.
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 reduces production costs and complexity by enabling accurate and flexible placement of annular inserts on smokers' articles, improving manufacturing efficiency and reducing the need for expensive pre-printed web rolls.
Implementation Method 1
a web which is to be wrapped around cylindrical pieces and glued thereto
Data Source
Figure 1
Figure 2
AI summary
An apparatus (1 ) for making smokers' articles (14) comprises conveyor means (7) for feeding along a first path (P1) in a feed direction (D1) a succession of pieces (6) of smokers' products intended to form part of cylindrical smokers' articles (14); feed means (11') for feeding a web (10) of sheet material; a garniture tongue (7) whereby at least one continuous rod (8) enclosing the cylindrical pieces (6) in the web (10) of sheet material is formed and which extends along the predetermined path (P1); and a cutoff device (13) for subdividing the continuous rod (8) into cylindrical smokers' articles (14); the apparatus (1) also comprises at least one applicator device (21, 22, 27) for applying strips (23, 24) of web; the applicator device (21, 22, 27) being located along a second path (P2) to apply the strips (23, 24) on at least one surface of the web (10) of sheet material in such a way that they are oriented transversely to the second path (P2).