Fiber Raw Material Feed Control With Stopper-Regulated Supply
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Solution Overview
Problem
Existing raw material supply devices for dry type sheet manufacturing require two transport units, leading to increased device size and inefficiencies in material supply, particularly in adjusting the amount of raw materials to maintain uniformity and prevent over-supply.
Innovation Solution
A raw material supply device with a transport section, a stopper mechanism, and a controller that adjusts the supply amount by blocking the transport path using shielding plates or an air flow forming portion to control the flow of raw materials, allowing for precise adjustment and miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two raw material supply units are provided to ensure stable supply, then the reliability of raw material supply is improved, but the device size increases
Solution Approach 1:
The patent merges the functions of multiple raw material supply units into a single integrated supply unit with a stopper mechanism. Instead of using two separate supply units that would occupy more space, one supply unit is equipped with a controllable stopper that can regulate material flow to achieve stable supply comparable to multiple units.
Solution Approach 2:
The stopper mechanism introduces dynamic control to the raw material supply system. The stopper can be opened or closed based on processing section requirements, allowing flexible adjustment of supply amount. This dynamic control enables a single supply unit to adapt its output, replacing the need for multiple fixed supply units.
2Reliability
If two raw material supply units are provided for stable supply, then the supply reliability is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple supply units and their associated control mechanisms into a single integrated system. Rather than managing two independent supply units with their own controls, the system uses one supply unit with a unified stopper control mechanism, reducing overall system complexity while maintaining supply stability.
Solution Approach 2:
The stopper mechanism serves multiple functions: it controls supply amount, regulates flow rate, and can completely stop supply when needed. This multi-functional component replaces what would otherwise require multiple specialized supply units, simplifying the overall system architecture.
3Manufacturing precision
If a stopper mechanism is added to control supply amount, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The stopper mechanism is designed as a segmented or modular component that can be integrated into the existing transport section. Rather than adding a completely separate control system, the stopper is divided into controllable segments or sections that can independently regulate flow, making the added complexity manageable and localized.
Solution Approach 2:
The stopper acts as an intermediary component between the transport section and the processing section. It mediates the material flow, providing precise control without requiring complex control systems in either the transport or processing sections. This intermediary function simplifies the overall control architecture while achieving precise supply amount control.
Data Source
AI summary
A raw material supply device includes a transport section that transports a raw material containing fibers and supplies the raw material to a processing section that processes the raw material, a stopper that blocks transport of a portion of the raw material transported by the transport section; and a controller that controls an operation of the stopper to adjust a supply amount of the raw material to the processing section. Further, it is preferable that the raw material supply device further includes a fixed-amount supply section that intermittently supplies the raw material transported by the transport section to the processing section by a first amount.