Capsule Position Regulation in Tobacco Filter Strand Machines
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Solution Overview
Problem
Ensuring the high quality of cigarette products with liquid-filled capsules in filter rods, particularly in ensuring correct positioning and filling of capsules during the manufacturing process, as existing methods lack precision in controlling the phase between capsule insertion and cutting, leading to potential slippage and quality issues.
Innovation Solution
A method for operating a filter rod machine that involves controlling the phase between the capsule insertion device and the cutting device using a microwave resonator to determine the precise position of capsules relative to the cut, ensuring accurate placement and quality assessment, with an ejection system for faulty filters, and a phase controller to regulate the speed of the format tape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the phase between the insertion device and the cutting device is not controlled, then the device complexity is reduced, but the manufacturing precision of capsule positioning deteriorates
Solution Approach 1:
A sensor detects the actual position of the capsule insertion point relative to the cutting device, and this position information is fed back to a controller that adjusts the phase relationship between the insertion device and cutting device to maintain precise capsule positioning
Solution Approach 2:
The mechanical phase control system is replaced with an automated control system that uses sensors to detect capsule position and electronically controls the timing and positioning of the cutting device, eliminating manual mechanical adjustment
2Reliability
If the format tape speed is not regulated, then the ease of operation is improved, but the reliability of capsule positioning deteriorates due to slippage
Solution Approach 1:
The position of the capsule and the speed of the format tape are continuously monitored by sensors, and this feedback information is used by a controller to dynamically adjust the tape speed to maintain correct capsule positioning and prevent slippage
Solution Approach 2:
The format tape speed is made dynamically adjustable rather than fixed, allowing the system to adapt to variations in capsule insertion timing and prevent slippage by automatically regulating tape speed based on real-time position feedback
3Measurement precision
If capsule position is not determined precisely, then the measurement precision is reduced, but the productivity is improved by eliminating position checking
Solution Approach 1:
The sensor continuously monitors capsule position throughout the production process rather than performing intermittent checks, allowing real-time phase adjustment without interrupting production flow and maintaining both high measurement precision and productivity
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 method ensures precise placement and quality control of capsules, preventing slippage and ensuring that only correctly filled and positioned capsules are included in the filter rods, thereby maintaining the quality of cigarette products.
Implementation Method 1
a microwave resonator to determine the position of at least one capsule relative to the respective cut
Implementation Method 2
A camera is used to check whether the double-length filters formed are correctly formed after cutting and during cross-axial transport
Data Source
Figure 1
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AI summary
The invention relates to a method for operating a filter strand machine (60) for the tobacco processing industry, wherein capsules (43, 44) filled with a liquid are inserted into the filter strand (40, 40') by means of a loading device (42, 42') and wherein filters (41) are cut from the filter strand (40, 40') by means of a cutting device (46, 46'), wherein the phase between the loading device (42, 42') and the cutting device (46, 46') or wherein the speed of a format belt (52, 52') relative to the phase of the cutting device (46, 46') is controlled. Furthermore, a method for controlling the phase between a loading device and a cutting device is provided.