PECM Issue 42 2020 | Page 41

He explains: “During peak times we operate four packing lines in 12 hour shifts. Like- for-like we still employ the same volume of people on the manual lines. Only now, we tend to use a smaller pool of people and have the option of rotating them between packing, crate separation, palletising and the robotic lines, which offers them greater job variety.” A simple touchscreen enables staff to adjust/control the speed with the flow wrapper Andy estimates that the site’s reliance on agency staff has reduced by around 40%. He believes that some of this could be attributed to fewer staff absences as a result of the more ergonomic system. “There’s certainly some correlation between having a core team of people that are familiar with the system and the camaraderie that people build when they work together daily. It’s very evident that our pack team now shares a stronger work ethic,” adds Andy. To improve how packs were presented to the manual packers and consequently presentation within the retail crates, the Rushton team worked collaboratively with Brillopak to engineer two modified PakStations. A hybrid version of five apple PakStations installed by Morrisons at the Thrapston depot several years ago, Rushden’s modified design guarantees pack orientation to the workforce that collate the trays. Rather than clusters, packs come through in single file. This helps to guarantee consistent presentation of packs within the trays. Additionally, the design of the PakStation lines helps to mitigate repetitive strain injuries and makes the whole manual packing process seamless. “Our colleagues find it much more ergonomic,” states Andy. “They’re not bending over or moving around the turntable or repeatedly lifting trays.” ZONE CONTROL By arranging two Brillopak PakStations staggered back-to-back means one operative can feed a continuous stream of crates to both packing lines concurrently, and remove filled crates placing them on the conveyor for palletising. Because this is done at the rear of the machine, crate clutter is minimised. Rather than doubling up the role, one crate feeder is deployed elsewhere in Rushden’s facility. The lines, which are located in a busy warehouse, adjacent to the robotic installation, has also helped the team to introduce clear work zones, further reducing trip hazards. The consistent packing speed and fewer front to back end bottlenecks means that OEE across the whole packing zone has improved. For additional flexibility, the two PakStation lines can be converged to run through the robotic cells. Having an equal split between robotic and semi-automated pack lines means that Morrisons can move labour around and scale up production to accommodate seasonal demands. Each PakStation system features its own colour touchscreen control panel. This enables Workforce moral has improved since Rushden installed the PakStation operatives to control and adjust the speed in which product is presented from the flow wrap system. “It’s so straightforward to use that I’m never worried about pressing the wrong button and breaking the system,” comments Dave, a longstanding packhouse operative. Last year the system won the PPMA 2018 Group Award for Innovative Packaging Machine. Industry judges commented: “The strength of the PakStation lies in its optimisation of manual human labour rather than trying to replace it completely. This gives a best of both worlds scenario along with reduced damage to product. Impressively short payback time and overall equipment performance improvements.” www.brillopak.co.uk Issue 42 PECM 41