Throttle Devices for Plastic Container Filling Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for producing filled plastics material containers lack control over volume flows and pressure in plastics material parisons, leading to inefficiencies in ejection rates and safety concerns due to the absence of effective flow regulation and pressure management.
Innovation Solution
The apparatus and method involve a system with multiple transforming stations and a central pressure medium supply, equipped with throttle devices and pressure generating units, allowing for adjustable and controlled delivery of liquid medium into plastics material parisons, enabling precise control of volume flow and pressure through a combination of valve systems, sensors, and feedback mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common pressure generating unit is used for multiple transforming stations, then system complexity is reduced and ease of operation is improved, but control over volume flow and pressure at individual stations deteriorates
Solution Approach 1:
The patent divides the common pressure medium supply into individual supply lines for each transforming station, with separate throttle devices at each station. This segmentation allows independent control of volume flow and pressure at each station while maintaining a centralized pressure generation system, thus resolving the contradiction between system simplicity and individual control capability.
2Productivity
If pressure storage is used to maintain continuous supply, then productivity is improved, but safety deteriorates due to risk of complete emptying in case of malfunction
Solution Approach 1:
The patent segments the pressure storage system into multiple smaller pressure storages, each assigned to individual transforming stations or groups of stations. This segmentation ensures that a malfunction at one station does not cause complete emptying of the entire pressure storage system, thereby maintaining safety while still enabling continuous operation and high productivity through parallel processing.
3Productivity
If multiple transforming stations operate in parallel, then productivity is improved, but control over individual filling processes deteriorates
Solution Approach 1:
The patent implements separate throttle devices and control mechanisms for each transforming station, allowing independent adjustment of volume flow and pressure parameters. This enables precise control over individual filling processes even when multiple stations operate in parallel, resolving the contradiction between productivity and individual process control.
4Device complexity
If no flow limiter is provided, then device complexity is reduced, but safety deteriorates due to inability to prevent complete pressure storage emptying
Solution Approach 1:
The patent incorporates flow limiters that are pre-configured to automatically prevent complete emptying of the pressure storage system. These safety devices are installed in advance and automatically activate when malfunction conditions are detected, preventing catastrophic failure without requiring complex active control systems, thus resolving the contradiction between device simplicity and safety.
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
This approach enhances the variability and efficiency of the filling process, improves safety by preventing complete pressure storage emptying in case of malfunctions, and allows for continuous adjustment of pressure and flow rates, stabilizing the container expansion process.
Implementation Method 1
a pressure generating unit assigned solely to it, which in turn has a cylinder and a piston driven by compressed air
Implementation Method 2
these transforming stations and/or filling devices in each case have a throttle device which is suitable and intended for changing the volume flow of the liquid entering the plastics material parisons
Implementation Method 3
apparatus for expanding plastics material parisons into plastics material containers by means of a liquid medium
Data Source
AI summary
Provided is an apparatus for expanding plastics material parisons into plastics material containers by a liquid medium with at least two transforming stations which fill and expand the plastics material parisons with the liquid medium with at least one common delivery device, which delivers the liquid medium to both transforming stations, wherein the transforming stations in each case have filling devices which fill the liquid medium into the plastics material parisons. According to the embodiments these transforming stations and/or filling devices in each case have a throttle device which are suitable and intended for changing the volume flow of the liquid entering the plastics material parisons.