Printing device for cardboard boxes
Cost reduction of 290,000 yen
in one year by reducing moment-stops
Moment-stop improvement example
Resin case supply process
Cost reducing effect
Achieved a reduction in labor cost of 330,000 yen/year.
Device description
This is a device that supplies resin cases for PC peripherals from a stocker to a conveyor.
Problems that have occurred so far
The impact that occurred when the horizontal axis stopped on the conveyor could cause the case to fall.
In addition, there were other issues where cases thrown in the direction of travel would overlap cases in front of them, or the distance between them and other cases would become narrower. This was causing the moment-stop.
The moment-stop was about 6 minutes, and it occurred about 6 times a day.
Improvements brought by electrification
When moving horizontally, the deceleration when stopping can be set numerically, making it possible to stop smoothly without impact.
This eliminates problems such as cases falling and cases becoming too close together, and moment-stops no longer occur.
Cost reduction effect assuming the number of workers is 1
Conditions
Labor cost
2,300 yen/hour
Number of operation days per year
240 days
Effect
When air cylinders were in use, there were an average of six moment-stops per day, and it took six minutes each time to recover from them.
By using ELECYLINDER, the number of moment-stops decreased from 6 times/day to 0 times/day. The labor costs allocated to recover from these moment-stops
were reduced by 331,200 yen/year.
Breakdown
Time consumed by moment stops
Air cylinder: 6 minutes (moment-stop duration) x 6 times (moment-stop frequency) = 36 minutes/day
Electric cylinder: 0 minute
Labor costs incurred due to moment-stops
Air cylinder: 36 minutes x 2,300 yen/hour = 1,380 yen/day
1,380 yen/day x 240 days = 331,200 yen/year
Other improvement examples
