Opening system of packaging box

An opening system of a packaging box, in which the opening system opens the packaging box including upper panels respectively extended from side panels opposite to each other to serve as an upper surface, and bonded to each other by using an adhesive tape as their end portions are in contact with each other, thereby closing the upper surface, the system comprising:

• a cutting device for cutting the adhesive tape while being moved along the end portions of the upper panels, opposite to each other;
• a suctioning and lifting device for suctioning the upper panels separated from each other because the adhesive tape thereon is cut by the cutting device, and pulling the upper panels upward from the packaging box for the upper panels to be spaced apart from the side panels;
• rod members elongated to be inserted into gaps when the gaps are formed between the upper panels and upper edges of side surfaces of the packaging box because the upper panels are spaced apart from the side panels by the suctioning and lifting device;
• and
• an opening device for moving the respective rod members maintained in contact with lower surfaces of the upper panels for the upper panels to be pivoted outward from their boundaries with the side panels,
• wherein the opening device performs a first movement for linearly moving the respective rod members outward the packaging box and a second movement for linearly moving the respective rod members downward the packaging box, and
• the upper panel is opened by being pivoted from the upper surface of the packaging box in the first movement, and the upper panel is placed to be in contact with an outer surface of the side panel in the second movement.

An opening system of a packaging box, in which the opening system opens the packaging box including upper panels respectively extended from side panels opposite to each other to serve as an upper surface, and bonded to each other by using an adhesive tape as their end portions are in contact with each other, thereby closing the upper surface, the system comprising:

• a cutting device for cutting the adhesive tape while being moved along the end portions of the upper panels, opposite to each other;
• a suctioning and lifting device for suctioning the upper panels separated from each other because the adhesive tape thereon is cut by the cutting device, and pulling the upper panels upward from the packaging box for the upper panels to be spaced apart from the side panels;
• rod members elongated to be inserted into gaps when the gaps are formed between the upper panels and upper edges of side surfaces of the packaging box because the upper panels are spaced apart from the side panels by the suctioning and lifting device;
• and
• an opening device for moving the respective rod members maintained in contact with lower surfaces of the upper panels for the upper panels to be pivoted outward from their boundaries with the side panels,
• wherein the opening device includes a first driving unit driven to be adjacent to or spaced apart from the packaging box, a second driving unit coupled to and driven vertically with respect to the first driving unit, a fixed block coupled to and moved with respect to the second driving unit in a horizontal direction or at a predetermined inclination angle in the horizontal direction, and one of the rod members fixed to the fixed block and extended parallel to a direction in which the first driving unit is driven.