Tobacco Rod Feeding Drum Synchronization for Empty Flute Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing feeding apparatuses in the tobacco industry struggle to maintain high output and productivity while ensuring 100% filling of receiving drums without supplying additional rods when flutes become unfilled, and lack effective quality control and rod rejection mechanisms.
Innovation Solution
The apparatus incorporates a filling sensor to detect unfilled flutes, adjusts rotational speed of the receiving drum to synchronize with the conveying drum, and includes a quality control sensor and rod rejector to ensure continuous filling and reject defective rods, maintaining synchronization through speed adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the receiving drum operates at constant speed, then the system is simple to control, but unfilled flutes cause productivity loss and cannot maintain 100% filling
Solution Approach 1:
The receiving drum's rotational speed is made dynamically adjustable rather than constant. The control unit varies the rotational speed based on real-time detection of flute filling status, allowing the system to adapt to unfilled flutes by slowing down to prevent productivity loss while maintaining synchronization with the conveying drum.
Solution Approach 2:
A sensor detects whether flutes on the receiving drum are filled or unfilled, and this information is fed back to the control unit. The control unit uses this feedback to automatically adjust the rotational speed of the receiving drum, creating a closed-loop control system that maintains 100% filling efficiency without manual intervention.
2Productivity
If additional rods are supplied to fill unfilled flutes, then 100% filling can be maintained, but this requires additional material input and increases system complexity
Solution Approach 1:
The sensor detects unfilled flutes and provides feedback to the control unit, which then adjusts the rotational speed of the receiving drum to match the conveying drum's speed at the transfer point. This ensures that filled flutes are transferred even when some flutes remain unfilled, maintaining productivity without requiring additional rods.
3Reliability
If the receiving drum slows down to match the conveying drum speed, then filled flutes can be transferred, but this reduces productivity when flutes are unfilled
Solution Approach 1:
The rotational speed of the receiving drum is dynamically adjusted based on real-time detection of flute filling status. When all flutes are filled, the drum operates at higher speed to maintain productivity. When unfilled flutes are detected, the speed is reduced to ensure proper transfer synchronization, thus balancing reliability and productivity.
Solution Approach 2:
The sensor continuously monitors flute filling status and provides feedback to the control unit, which adjusts the receiving drum's speed accordingly. This feedback mechanism ensures that speed reduction only occurs when necessary (when unfilled flutes are present), minimizing productivity impact while maintaining transfer reliability.
4Reliability
If synchronization is maintained at all times, then transfer reliability is high, but the system cannot adapt to unfilled flutes and loses productivity
Solution Approach 1:
Synchronization between the receiving and conveying drums is made dynamic rather than fixed. The receiving drum's rotational speed is continuously adjusted based on the actual filling status of its flutes, allowing the system to maintain synchronization only when necessary (when unfilled flutes are present) while operating at higher speeds when all flutes are filled, thus balancing reliability and productivity.
Data Source
Figure 1~2
Figure 1a~1b
Figure 3
AI summary
A feeding apparatus (30, 40) for feeding segments (A) of tobacco industry material, comprising a hopper (21, 41) for storing rods (MA) of tobacco industry material, a receiving drum (22) adapted to receive the rods (MA) from the hopper (21, 41), a conveying drum (23) for conveying the rods (MA) while cutting the rods (MA) into segments (A), a cutting head (24) for cutting the rods (MA) conveyed on the conveying drum (23). The apparatus according to the invention is characterized in that the feeding apparatus comprises a filling sensor (31) for checking the presence of the rod (MA) in a flute (28) of the receiving drum (22), the receiving drum (22) being adapted to make a rotational movement at an increased speed (ω1) so that when an unfilled flute (28) is detected on the receiving drum (22) it moves with the increased speed (ω1) so that at the point of transfer (X) of the rod (MA) into the flute (29) of the conveying drum (23) there is another filled flute (28) of the receiving drum (22) and another empty flute (29) of the conveying drum (23).