Extrusion Device Parallel Feed Material Change
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Solution Overview
Problem
Existing extrusion devices for plastic film production require manual and sequential material changes, leading to high time and physical effort for operators, especially in multi-layer film production with multiple extruders and feed devices.
Innovation Solution
An extrusion device with multiple feed devices equipped with automatic drain plugs and container interfaces allows for parallel material discharge, reducing operator effort and time by enabling simultaneous operation across multiple feed devices, with optional automatic sensor control and gravity-assisted discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If manual sequential material change is used, then operator control and monitoring are maintained, but material change time and physical effort increase significantly
Solution Approach 1:
The feed device is divided into multiple independent feed hoppers, each with its own drain opening and drain plug. This segmentation allows individual hoppers to be drained independently and in parallel, significantly reducing the total material change time while distributing the operator's tasks across multiple locations rather than requiring sequential handling of a single large system
Solution Approach 2:
Drain openings with drain plugs are pre-equipped in each feed hopper before material changes occur. This preliminary preparation of drainage infrastructure allows operators to immediately begin parallel draining operations across multiple hoppers when material changes are initiated, eliminating the need for sequential setup and reducing overall changeover time
2Productivity
If multiple feed devices are handled sequentially, then complete material drainage is achieved, but total processing time increases
Solution Approach 1:
The system segments the material drainage function across multiple independent feed hoppers, each capable of being drained simultaneously. This segmentation transforms a sequential single-hopper drainage process into a parallel multi-hopper process, directly increasing material change throughput while reducing the time operators spend on each individual hopper
Solution Approach 2:
Multiple feed hoppers are combined into a single integrated extrusion system where each hopper maintains its own drain opening and plug. This combination allows the system to leverage parallel drainage capabilities of individual hoppers while achieving the overall productivity benefit of simultaneous material changes across all feed devices
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
Significantly reduces material change time and physical strain on operators by enabling parallel processing of multiple feed devices, minimizing manual handling and optimizing material discharge efficiency.
Implementation Method 1
allowing the material to be fed from the feed unit into the drain container. This feeding can be carried out by gravity or with active assistance
Data Source
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AI summary
The invention relates to an extrusion device (10) and a method for producing a plastic film, the extrusion device comprising at least two feed devices (20) for feeding a feedstock (E) to an extruder (30). Each feed device (20) comprises least one discharge opening (50) having a discharge closure (52) for opening and closing the discharge opening (50) and a container interface for reversibly fastening a discharge container (60) for receiving feedstock (E) discharged from the respective feed device (20).