When sealing problems kept a packager of energy bars from meeting their production requirements, they contacted Greener to see if we could help develop a solution. They explained to one of our technical experts that rejects and downtime due to split or unsealed packages had reached the point of crisis. Read more
One of Greener’s Technical Salespeople discovered that knife purchases by their customer had grown by 35% over the past year, at an additional cost of nearly $10,000. It seemed unlikely that additional production had accounted for all of this increase, which indicated to him that the customer could be experiencing problems on their horizontal flow wrappers.
In this blog post and Tech Bites video we outline solutions to achieve repeatable quality and productivity on horizontal flow wrappers and vertical baggers across all production shifts, multiple packaging machines, and different plant locations.
Set-up procedures for knives and anvils can vary according to the make and model of the packaging machine, knife adjustment style, and other factors. There are, however, some general principles that make these adjustments more effective and efficient, reducing downtime and parts costs.
♦ Optimize Knife Design
- Knives ground on a diagonal, or bias–whether they have a zig zag or a straight cutting edge—require less pressure to cut so they are easier to set up and typically last longer.
- Zig zag knives with smaller (more) teeth are also easier to set up and provide longer life.
♦ Set Up the Crimpers First
- Clearance and Pressure Adjustments required to create a good seal can impact the knife and anvil set-up.