Particle Filter for Glass Forming Machine Air Channels
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Solution Overview
Problem
In glass container forming machines, small particles from metal parts can contaminate the glass containers, particularly during the blow-and-blow or press-and-blow processes, posing risks for pharmaceutical products due to potential chemical reactions and agglomeration issues, and existing solutions struggle to prevent particle entry without affecting air pressure necessary for forming the glass containers.
Innovation Solution
A particle filter system is integrated into the glass forming machine's air channels, utilizing a surface filter media with slotted or sieve designs to prevent particles larger than a certain size from entering the parison or final glass container, while maintaining minimal impact on air pressure, using a safety ring for secure placement and ensuring correct filter orientation to avoid contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a particle filter is placed in the air channel to prevent particle contamination, then the purity of glass container is improved, but the air pressure required for blowing is reduced
Solution Approach 1:
The patent employs a porous filter medium with carefully controlled pore sizes that allow air molecules to pass through while blocking larger particle contaminants. The porous structure provides sufficient flow area to minimize pressure drop while achieving effective particle filtration, thus resolving the contradiction between purity improvement and pressure maintenance
Solution Approach 2:
The filter design optimizes parameters such as pore size distribution, filter thickness, and surface area to achieve the desired balance between particle removal efficiency and air flow resistance. By adjusting these parameters, the filter maintains adequate air pressure for the blowing process while effectively preventing particle contamination
2Manufacturing precision
If a filter with small pore size is used to block small particles, then the purity of glass container is improved, but the air pressure required for blowing increases significantly
Solution Approach 1:
The filter medium is designed to perform multiple functions simultaneously: filtering out small particle contaminants while maintaining adequate air flow with minimal pressure loss. The universal design approach allows the same filter structure to achieve both high purification efficiency and low energy loss by optimizing the balance between pore size and total flow area
Solution Approach 2:
Instead of relying solely on reducing pore size to improve filtration, the design transitions to a two-dimensional approach by increasing the filter surface area. This allows smaller effective pore sizes for better particle capture while the increased total area compensates for the higher resistance, maintaining acceptable air pressure levels
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 particle filter effectively prevents contamination of glass containers by blocking unwanted particles while ensuring the glass forming process is not hindered by significant pressure drops, allowing for the production of clean and contamination-free glass containers suitable for pharmaceutical use.
Implementation Method 1
a particle filter for a glass forming machine operating according to a blow-and-blow process or according to a press-and-blow process, said particle filter adapted for placing in at least one air channel serving pressurized air for counter blow of a parison in a blank mold forming station of said glass forming machine, and/or an air channel serving pressurized air for final blow and/or for finish cooling of a glass container made of said parison in a finish mold station of said glass forming machine
Data Source
AI summary
The present invention relates to a particle filter (F) for a glass forming machine operating according to a blow-and-blow process or according to a press-and-blow process, said particle filter (F) is adapted for placing in at least an air channel (14a) serving pressurized air for counter blow (5) of a parison (P) in a blank mold (2) forming station of said glass forming machine, and/or an air channel (14b, 20) serving pressurized air for final blow (11) and/or for finish cooling (21) of a glass container (12) made of said parison (P) in a finish mold (8) station of said glass forming machine, said particle filter (F) comprising a surface filter as a main filter media (MF) and said particle filter (F), if placed in at least said air channel (14a) serving pressurized air for counter blow (5) of said parison (P) in said blank mold (2) forming station of said glass forming machine, and/or said air channel (14b, 20) serving pressurized air for final blow (11) and/or for finish cooling (21) of said glass container made of said parison (P) in said finish mold (8) station of said glass forming machine, avoiding passage of particles above a certain size from a dirty side of said main filter media (MF) to a clean side of said main filter media (MF) and thus, also avoiding final passage of said particles above said certain size into said parison (P) or said glass container (12) blown by said glass forming machine and a plunger unit (PU), a blow head (BH), a blow head support and a glass forming machine adapted for a particle filter (F) according to the present invention.