Multi-Channel Rod Feeding Module for Deformation-Free Segment Supply
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Solution Overview
Problem
Existing tobacco manufacturing apparatuses face challenges in conveying and storing rod-like articles, leading to deformation due to high pressure in hoppers, and require an efficient multi-channel feeding system to prevent blockages and maintain article quality.
Innovation Solution
A feeding module with multiple gravity channels, equipped with filling and blockage sensors, ensures continuous feeding by alternating operation between channels and compensating for blockages, reducing pressure on rods and maintaining article quality through synchronized feeding and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rods are stored in a hopper and fed through gravity channels to the receiving drum, then the feeding process is simplified and continuous, but the rods are subjected to high pressure at the lowest area of the hopper which causes deformation
Solution Approach 1:
The feeding system is divided into multiple independent gravity channels (first gravity channel, second gravity channel) that operate in parallel. This segmentation allows the system to maintain continuous feeding capability while distributing the load and reducing pressure concentration on individual rods, thereby preventing deformation.
Solution Approach 2:
The system dynamically switches between different gravity channels based on real-time blockage detection. When a blockage is detected in one channel, the system automatically redirects feeding through alternative channels, maintaining continuous operation while preventing pressure buildup and rod deformation in blocked channels.
2Manufacturing precision
If multiple gravity channels are used to feed rods to the receiving drum, then rod deformation is reduced, but the system complexity increases due to the need for multiple channels and blockage sensors
Solution Approach 1:
The system incorporates automatic blockage detection through sensors and self-correction through automated channel switching. This self-service mechanism eliminates the need for manual intervention and simplifies operation despite the multi-channel structure, as the system autonomously manages its own feeding process and detects/resolves blockages.
Solution Approach 2:
Each gravity channel is designed as a universal feeding path that can independently handle rod transport. The channels share common structural features and control mechanisms, allowing the system to maintain simplicity in design while achieving redundancy and deformation prevention through multiple functional paths.
3Reliability
If blockage sensors and filling sensors are installed to detect and prevent channel blockages, then feeding reliability is improved, but the device complexity and cost increase
Solution Approach 1:
Blockage sensors and filling sensors provide real-time feedback on the feeding status of each gravity channel. This feedback enables the control system to detect blockages immediately and automatically switch to alternative channels, ensuring high feeding reliability. The sensor system is integrated into the existing channel structure, minimizing additional complexity.
4Productivity
If the feeding apparatus is positioned downstream of the filling sensor to enable continuous feeding replacement, then productivity is maintained during channel blockages, but the system complexity increases
Solution Approach 1:
The feeding apparatus is strategically positioned downstream of the filling sensor to enable preliminary detection and response to blockages. This positioning allows the system to identify empty flutes and activate alternative feeding paths before actual blockages occur, maintaining continuous productivity. The apparatus integration is designed to leverage existing sensor locations, minimizing additional system complexity.
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
The system effectively prevents deformation of rods by reducing pressure and ensuring continuous feeding, allowing for comprehensive quality checks and temporary channel disablement during maintenance, thus enhancing the manufacturing process efficiency.
Implementation Method 1
the feeding channels are gravity channels
Data Source
Figure 1
Figure 1a
Figure 2a
AI summary
A feeding module (20, 70) for feeding segments for the manufacture of multi-segment articles adapted to cut a rod (MA, ME) into segments (A, E) and to feed the segments (A, E), comprising a hopper (21, 71) for storing the rods (MA, ME), a receiving drum (22, 72) for receiving the rods (MA, ME) from the hopper (21, 71), a cutting head (24, 74) for cutting the rod (MA, ME) into individual segments (A, E), a shifting drum (25, 75) for varying the mutual position of the segments (A), an aligning drum (26, 76) for forming at least one stream of the segments (A, E), characterised in that the feeding module (20, 70) is provided with feeding channels (110, 116) extending from the hopper (21, 71) to the receiving drum (22, 72), and a filling sensor (115) generating an empty flute (28) signal when the flute (28) of the receiving drum (22, 72) remains empty in the measuring area of the filling sensor (115), furthermore, the feeding module (20, 70) is adapted to feed the rod (MA, ME) into the empty flute (28) of the receiving drum (22, 72) by means of a feeding apparatus (118) situated downstream of the filling sensor (115) in response to a signal of an empty flute (28) of the receiving drum (22, 72).