Tiltable Supporting Wheels for Wrapping Machine Table
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Solution Overview
Problem
Rotating tables in wrapping machines experience uneven weight distribution and frequent mechanical stress due to manufacturing inaccuracies and deformations, leading to vibrations, noise, and premature wear of components.
Innovation Solution
The rotating table apparatus features tiltable supporting wheels connected to a frame, allowing uniform weight distribution and constant contact with the table, reducing vibrations and noise by ensuring all wheels engage the table surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed supporting wheels are used on the base frame, then the structure is simple and stable, but manufacturing inaccuracies and deformations cause uneven weight distribution, leading to vibrations, noise, and premature wear
Solution Approach 1:
The supporting wheels are made tiltable relative to the base frame, transforming the static fixed wheel structure into a dynamic adjustable one. This allows the wheels to automatically adapt to table deformations and manufacturing inaccuracies, ensuring uniform weight distribution across all wheels and eliminating the harmful vibrations and noise caused by uneven contact.
Solution Approach 2:
The tilt angle of the supporting wheels is changed as a variable parameter, allowing the wheels to adjust their orientation relative to the base frame. This parameter change enables the wheels to compensate for table deformations and maintain optimal contact, resolving the contradiction between structural simplicity and operational stability.
2Device complexity
If fixed supporting wheels are used, then the device complexity is low, but only a limited number of wheels actually support the weight due to manufacturing errors, causing localized stress and frequent component replacement
Solution Approach 1:
By making the wheels tiltable rather than fixed, the structure gains a degree of freedom that allows automatic adaptation to table surface variations. This dynamic adjustment ensures that all wheels participate in supporting the load, distributing stress uniformly and preventing the localized over-stressing that leads to frequent component failure.
3Weight of moving object
If the table is made of thin sheet metal for cost and lightness, then the weight is reduced, but the table becomes more susceptible to deformations that prevent uniform wheel contact
Solution Approach 1:
The tiltable wheel mechanism compensates for the reduced stiffness of thin sheet metal tables by allowing the wheels to adapt to surface deformations. This dynamic adjustment maintains uniform contact and weight distribution even when the table deforms under load, resolving the contradiction between using lightweight material and maintaining manufacturing precision.
Data Source
AI summary
Apparatus for a wrapping machine for wrapping a product with a film made of plastics, comprising a table which rotates around a wrapping axis and which supports the product to be wrapped, a frame provided with a plurality of supporting wheels, which are mounted free to rotate around respective rotating axes and which support the table, wherein the supporting wheels are connected to the frame so that the respective rotating axes are tiltable with respect to a supporting plane of the apparatus.