Bellows Production with Adjustable Embossing and Movable Supports
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Solution Overview
Problem
Existing methods for producing bellows with filter media in a zig-zag manner lack precision and flexibility in mass production, particularly in adapting to varying installation spaces and maintaining dimensional accuracy.
Innovation Solution
A device comprising an embossing device with adjustable rotational speed and fold line interval, an adhesive application device for stabilizing the folds, and a folding device with movable supporting elements to ensure precise folding and dimensional stability, allowing for continuous mass production of bellows with variable fold heights and high accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the filter medium is folded in a zig-zag manner to enlarge surface area, then the filtering capacity is improved, but the manufacturing precision and dimensional accuracy deteriorate
Solution Approach 1:
The embossing device creates fold lines in advance before the folding process, preparing the filter medium with predetermined fold patterns. This preliminary embossing ensures that when folding occurs, the medium follows the pre-marked lines accurately, maintaining dimensional precision while achieving the required surface area expansion through zig-zag folding.
Solution Approach 2:
Adhesive is applied as an intermediary substance between folded sections to stabilize the bellows structure. The adhesive prevents undesired bends and maintains the dimensional accuracy of the folded sections, allowing the filter medium to be folded into compact bellows shapes while preserving manufacturing precision.
2Adaptability or versatility
If variable fold heights are implemented to adapt to installation spaces, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The embossing shafts are designed with adjustable rotational speeds, allowing dynamic variation of fold line intervals during the embossing process. This dynamic adjustment enables the production of bellows with different fold heights and patterns without changing the physical structure of the embossing device, thus improving adaptability while avoiding increased device complexity.
Solution Approach 2:
The fold line interval, which determines fold height, is controlled by changing the rotational speed parameter of the embossing shafts. By varying this operational parameter rather than modifying the device structure, the system can produce bellows with different fold heights to suit various installation spaces while keeping the device itself simple and unchanged.
3Productivity
If continuous mass production is implemented to increase productivity, then the production efficiency is improved, but the manufacturing precision deteriorates
Solution Approach 1:
The production process is designed as a continuous operation where the embossing device, adhesive application device, and folding device operate in sequence without interruption. The filter medium continuously passes through each stage, allowing mass production while maintaining precision through consistent, uninterrupted processing. The continuous operation ensures uniform adhesive application and consistent folding at high speeds.
Solution Approach 2:
Manual or intermittent folding operations are replaced with a continuous mechanical folding system that operates in synchronization with the embossing and adhesive application processes. This mechanical substitution enables high-speed continuous production while maintaining dimensional accuracy through precise mechanical control of the folding action.
Data Source
AI summary
A device for producing a bellows from a filter medium, including: an embossing device embossing fold lines into a filter medium that runs through the embossing device, producing an embossed filter medium for folding into a folded filter medium; the folded section of the filter medium being delimited by two adjacent fold lines; an adhesive application device applying adhesive onto the embossed filter medium; and a folding device folding, in a zig-zag manner, the embossed filter medium onto which the adhesive was applied into the folded filter medium; wherein the folding device includes a plurality of adjacent supporting elements that can be moved into or out of a folding space of the folding device; wherein the supporting elements are movable into the folding space such, that at least one folded section of the folded filter medium is contacted and supported by a respective one of the plurality of supporting element.