Mattress Innercore Insertion With Controlled Adhesive Application
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Solution Overview
Problem
Conventional mattress manufacturing processes for securing an innercore unit to a bucket assembly are labor-intensive and prone to variability in adhesive application, leading to inadequate or excessive adhesive use, which affects quality and increases costs.
Innovation Solution
An automated process involving a gravity-assisted insertion of the innercore unit into a bucket cavity with a statically positioned adhesive applicator that applies a controlled volume of adhesive, minimizing manual labor and ensuring consistent adhesive application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual labor is used for adhesive application and innercore insertion, then operational flexibility is maintained, but manufacturing precision and consistency deteriorate due to operator variability
Solution Approach 1:
The system uses the moving bucket itself as the delivery mechanism for the innercore unit. The bucket's motion through the stationary insertion station enables automatic gravity-assisted insertion without requiring additional active propulsion mechanisms, thereby improving precision while limiting complexity increase
Solution Approach 2:
The insertion station is designed as a stationary structure through which the moving bucket passes. This stationary curved path allows consistent adhesive application and gravity-assisted innercore insertion without requiring complex moving components, resolving the contradiction between precision and complexity
2Manufacturing precision
If adhesive application is performed manually, then adaptability to varying conditions is maintained, but manufacturing precision deteriorates due to unregulated adhesive amounts
Solution Approach 1:
The manual mechanical adhesive application process is replaced with a stationary adhesive applicator that automatically applies controlled amounts of adhesive to the moving bucket. This substitution ensures consistent adhesive volume and distribution while maintaining operational simplicity through the stationary design
Solution Approach 2:
Adhesive is applied to the bucket surface in advance before the innercore unit is inserted. This preliminary adhesive application ensures proper bonding conditions are established beforehand, improving manufacturing precision while keeping the process simple and sequential
3Reliability
If excessive adhesive is applied to ensure adequate bonding, then reliability of bonding is improved, but loss of substance increases due to wasted adhesive
Solution Approach 1:
The stationary adhesive applicator applies adhesive to specific selected surfaces of the moving bucket with controlled volume and precise distribution. This localized quality control ensures adequate bonding reliability only where needed, preventing excessive adhesive application and reducing substance loss
4Productivity
If manual insertion method is used, then ease of operation is maintained, but productivity deteriorates due to labor-intensive processes
Solution Approach 1:
The moving bucket serves as its own insertion mechanism by passing through the stationary insertion station. Gravity assists the innercore unit insertion automatically as the bucket moves, eliminating the need for complex active insertion mechanisms while improving productivity through continuous motion
Solution Approach 2:
The insertion station is positioned at an elevated location, creating a gravity gradient that facilitates automatic innercore unit insertion into the moving bucket. This gravitational equipotential approach improves productivity without requiring complex mechanical insertion systems
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 process enhances the consistency and quality of the adhesive application, reducing failures and costs associated with excessive adhesive use while minimizing manual effort required for assembly.
Implementation Method 1
automated process involving a gravity-assisted insertion of the innercore unit into a bucket cavity with a statically positioned adhesive applicator that applies a controlled volume of adhesive
Implementation Method 2
inserting an innercore unit into the cavity at a leading edge thereof from an elevated support surface positioned above the bucket, wherein inserting the innercore unit is gravity assisted
Data Source
AI summary
A process and apparatus for manufacturing a mattress generally includes an insertion station for supporting an innercore, a movable platform for supporting a bucket, and an adhesive applicator intermediate the insertion station and the movable platform. The adhesive applicator is configured to apply adhesive prior to or simultaneous with insertion of the innercore unit into a cavity of the bucket. The innercore unit is gravity fed from an elevated surface of the insertion station into a leading edge of the bucket cavity to form the innercore unit and bucket assembly. The process and apparatus minimizes and/or eliminates manual labor as it relates to the manufacture of the innercore unit and bucket assembly.


