Locking assembly and apparatus for making compressed food product with moment resistant frame

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Solution Overview

Problem

Existing food processing technologies face challenges in producing puffed snacks economically while ensuring batch uniformity and consistency, particularly in compressing, cooking, and expanding food products to maintain nutritional value and taste.

Innovation Solution

A compression head assembly with movable platen assemblies and interlocking mechanisms, including a moving frame actuator unit and locking assembly, allows for controlled compressive forces and accessibility during the production process, ensuring parallel alignment of punch assemblies and minimizing deflection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a fixed compression head assembly is used, then structural simplicity is maintained, but accessibility for cleaning and maintenance is poor

Engineering Contradiction:
Improveaccessibility for cleaning and maintenanceVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The compression head assembly incorporates a movable platen that can be positioned in multiple locations (raised, lowered, intermediate) along the compression axis. This dynamic positioning capability allows the platen to be raised for improved accessibility during cleaning and maintenance operations, while still providing stable compression when in the lowered position, thus resolving the contradiction between accessibility and structural simplicity.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the moving frame is allowed to move freely, then accessibility is improved, but frame stability and alignment during compression deteriorates

Engineering Contradiction:
ImproveaccessibilityVSAvoidparallel alignment of punch assemblies
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The locking assembly applies preliminary constraining action on the moving frame by engaging with the frame and platen to prevent relative movement during compression. This locking mechanism ensures that when the platen is in the lowered position, the frame and platen are held in a fixed, stable relationship that maintains parallel alignment of the punch assemblies, counteracting any tendency for misalignment that would otherwise occur with a movable frame.

Inventive Principle:
Principle #9Preliminary anti-action

3Manufacturing precision

If the locking assembly constrains the moving frame completely, then alignment precision is improved, but accessibility for maintenance deteriorates

Engineering Contradiction:
Improvealignment precisionVSAvoidaccessibility for maintenance
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The locking assembly is designed to be selectively engageable and disengageable, creating a dynamic constraint system. During compression operations, the locking assembly engages to provide precise alignment and stability. During maintenance and cleaning operations, the locking assembly can be disengaged or positioned in an intermediate state, allowing the platen to be raised and providing accessibility, thus resolving the contradiction between precision and accessibility.

Inventive Principle:
Principle #15Dynamics

4Manufacturing precision

If the platen is kept in the lowered position for stability, then compression precision is improved, but accessibility for cleaning deteriorates

Engineering Contradiction:
Improvecompression precisionVSAvoidaccessibility for cleaning
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The platen is designed to move dynamically between multiple positions along the compression axis. It can be positioned in the lowered position during compression operations to ensure precision and stability, then raised to an elevated position during cleaning and maintenance operations to provide accessibility. This multi-position capability allows the system to optimize for the required function at different times, resolving the contradiction between compression precision and cleaning accessibility.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250344744A1Locking assembly and apparatus for making compressed food product with moment resistant frame
Publication Date: 2025.11.13 FRITO LAY NORTH AMERICA INC
  • US20250344744A1 patent drawing
  • US20250344744A1 patent drawing
  • US20250344744A1 patent drawing

AI summary

A compression head assembly comprises a first platen assembly and a second platen assembly. The first platen assembly includes a compression head frame and a first punch assembly coupled with the compression head frame. The second platen assembly includes a moving frame coupled with the compression head frame and a second punch assembly coupled with the moving frame. At least one of the punch assemblies is movable relative to the compression head frame or the moving frame to apply a compressive force between the two punch assemblies. The moving frame is movable relative to the compression head frame between a lowered position a raised position. The compression head frame and the moving frame are interlocked in the lowered position to block movement of the compression head frame relative to the moving frame in response to a compressive force applied by the punch assemblies acting on compression head frame.