Tape wrapping device

A tape wrapping device, comprising:

• a tape conveying mechanism adapted to convey a tape to a standby position and including;
• a first conveying drum positioned upstream of the standby position along a conveying direction of the tape and driven to rotate by a driving mechanism, an outer contour of the drum defining an outer peripheral surface having a variable outer diameter along an axial direction;
• a pressing assembly mounted opposite the first conveying drum and forming a gap defining a tape conveying path between the pressing assembly and the first conveying drum, the pressing assembly including a pressing plate having a planar pressing surface pressing the tape against the outer peripheral surface of the first conveying drum when the tape conveying mechanism conveys the tape along the tape conveying path;
• and
• a second conveying drum positioned upstream of the first conveying drum along the conveying direction of the tape to convey the tape to the first conveying drum when an outer peripheral surface of the second conveying drum is in contact with the tape, the second conveying drum including a plurality of convex structures spaced from each other and contacting the tape as it is conveyed;
• and
• a binding mechanism wrapping the tape on a product when the product is bonded to the tape at the standby position.

A tape wrapping device adapted to wind a tape with an adhesive surface and a back surface on a product, comprising:

• a frame;
• a tape conveying mechanism mounted on the frame and conveying the tape to a standby position, the tape conveying mechanism including;
• a first conveying drum positioned upstream of the standby position along a conveying direction of the tape and driven to rotate by a driving mechanism, an outer contour of the first conveying drum defining an outer peripheral surface having a variable outer diameter along an axial direction of the first conveying drum and conveying the tape towards the standby position when its outer peripheral surface is in contact with one of the adhesive surface or the back surface of the tape, such that the tape leaving the first conveying drum presents a curved contour in its width direction;
• a pressing assembly mounted on the frame opposite the first conveying drum and forming a gap defining a tape conveying path between the pressing assembly and the first conveying drum, the pressing assembly including a pressing plate having a planar pressing surface pressing the tape against the outer peripheral surface of the first conveying drum when the tape conveying mechanism conveys the tape along the tape conveying path;
• a second conveying drum, the second conveying drum positioned upstream of the first conveying drum along the conveying direction of the tape to convey the tape to the first conveying drum when an outer peripheral surface of the second conveying drum is in contact with the tape, the tape conveying path arranged between the second conveying drum and the pressing assembly;
• and
• a pushing mechanism including a pushing roller pressing the tape against the second conveying drum;
• and
• a binding mechanism wrapping the tape on the product when the product is applied to the tape at the standby position.