Direct Pouch Filling With On-Line Can Weight Control
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Solution Overview
Problem
Existing systems for manufacturing smokeless tobacco pouches face challenges in quality control due to comingling of pouches from multiple machines, making it difficult to determine which machine caused over or under-weight cans, leading to inconsistent product quality.
Innovation Solution
A system with individually controlled pouch-making lanes, a conveyor system, and on-line weighing, allowing for direct filling of containers with pouches, real-time weighing, and adjustment of manufacturing parameters based on weight to maintain consistent can weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pouches from multiple machines are deposited together in an intermediate holding bin, then productivity is improved by having multiple pouch-making lanes, but manufacturing precision deteriorates because it becomes impossible to determine which machine caused over or under-weight cans
Solution Approach 1:
The system divides the pouch-making process into separate lanes, with each lane dedicated to a single pouch-making machine. Each lane has its own transfer structure that directly fills containers, preventing mixing of pouches from different machines. This segmentation allows independent weight control and traceability for each lane while maintaining overall productivity.
Solution Approach 2:
The patent introduces transfer structures as intermediary components between each pouch-making machine and the container filling process. These transfer structures act as dedicated conduits that receive pouches from individual machines and deliver them to containers without mixing with other machines' output, enabling precise weight control while preserving multi-machine productivity.
2Productivity
If multiple pouch-making machines operate simultaneously, then productivity increases, but quality control becomes difficult because comingling obscures which machine produced defective pouches
Solution Approach 1:
The system segments the filling process by assigning dedicated transfer structures to each pouch-making machine lane. Each transfer structure handles pouches from its associated machine only, creating isolated filling paths. This segmentation maintains the ability to identify and control quality issues at the machine level while allowing multiple machines to operate simultaneously for high productivity.
3Manufacturing precision
If pouches are filled directly into containers from individual lanes, then manufacturing precision is improved through direct weight control, but device complexity increases due to multiple transfer structures and synchronization systems
Solution Approach 1:
The system uses separate transfer structures for each lane, though this increases component count. However, each transfer structure is a relatively simple mechanism that synchronizes pouch transfer with container positioning. The segmentation enables precise weight control by isolating each lane's filling process, and the complexity is managed through modular, standardized transfer mechanisms rather than complex integrated systems.
Data Source
AI summary
Systems and methods for manufacturing and inserting a predetermined number of material-filled pouches into containers are disclosed. A system includes a pouch providing system comprising a plurality of lanes, wherein each one of the plurality of lanes includes a pouch making machine and a hold-back structure. The system also includes a conveyor system structured and arranged to move a plurality of containers into alignment with the plurality of lanes. The system further includes a controller structured and arranged to control the hold-back structure in each one of the plurality of lanes such that the pre-determined pouches are inserted into the plurality of containers when the plurality of containers are aligned with the plurality of lanes.