Used KAR 1 cardboard box closing machine. The device is used to automatically insert the tube into the cardboard box. The cartons are previously unfolded and pressed into special slots on the chain conveyor. The box passes through the individual slots, activating subsequent actuators closing the box. At the end of the transporter there is a receiver that takes out the cardboard boxes. Packaging of 3 pieces takes place on the conveyor belt, and then it is turned by 90 degrees and taken out of the machine.