Damien Griffith Design Ltd
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Meal batch line

Automated conveyor batch line with tray de-nesting, hole punch, Lidding etc.

Sector
Automation
Years
2024
Engagement
Subcontracted
Role
Mechanical Design Engineer
Status
Installed and operational
Client
Subcontracted to Horan Automation; line built by Noreside Engineering

SolidWorks

Problem

A cooked-meal producer needed to partially automate a line running a large variety of meal types in batch sizes that changed daily. I was subcontracted to design the line in its entirety, for handover to electro-mechanical integration and sign-off for production.

Constraints

  • High product mix with batch sizes varying day to day, hour to hour
  • 6 m line footprint on a new factory floor, designed for duplication as additional modular lines
  • All four de-nesting scrolls driven by a single servo, where comparable systems drive each independently
  • Food-safe belt materials throughout; full washdown compatibility
  • Heavy debris brush integrated into an actuating pusher for cleardown
  • Five month design deadline set by the wider project schedule

Approach

  • Full mechanical scope: structural frames, material handling mechanisms, manufacturing drawings, part procurement, client liaison
  • Benchmarked existing industrial de-nesting solutions for comparable container geometry before selecting a scroll based approach
  • Designed for integration with the controls package delivered by the partner company
  • Designed the line as a repeatable module so additional lines could be duplicated on the new factory floor without redesign

Gallery

Full line rendering
Full line rendering
Lid de-nest and placement module Video during testing
Tray de-nesting and hole punch testing video
Client requested a basic model showing various layouts for their new factory at concept generation phase
Client requested a basic model showing various layouts for their new factory at concept generation phase(Render)
Section view of tray de-nester and tray magazine
Section view of tray de-nester and tray magazine(Render)

Outcome

Mechanical design was completed in full, with all standard and custom components specified, procured and released for manufacture, then reviewed and approved by the assembly partner. Delivered inside the five month design window. The line was installed and has been operational since 2026.

Testimonial

“He has a very inventive mind and is always able to find a solution to any problem that comes his way.”

See full testimonial

Gerry Horan

Director & Owner (Retired) · Horan Automation Ltd & Future Robotics Ltd

Further detail

D1Single servo container de-nesting

Four scrolls, one servo. Fully adjustable scroll positioning, adjustable guide rails controlling tray descent, synchronous drive via timing belts and taper-lock pulleys, and a laser-cut alignment plate setting precise scroll angles so all four corners engage and release consistently. Single servo drive was chosen over four independent drives to hold cost and complexity down while keeping the four corners mechanically synchronised by construction rather than by control.

D2Modular hole-punch station

Different meals require different air hole counts for moisture control during reheating. Designed a drop-down punch, tapered and matched to the side wall and profile of the food containers. Modular actuator, hole and punch assembly, with shims allowing edge refreshment and punch resharpening. Individual actuators allowed anywhere from zero to six holes; the design constraint was set at a minimum of six, and the manufacturer subsequently built to four.