Flip-top coffee capsule sealer

A flip-top coffee capsule sealer, comprising:

• a lower capsuling box;
• and
• an upper capsuling cover;
• wherein an annular protrusion extending upward is disposed on an upper portion of the lower capsuling box, and the annular protrusion is configured to support a pressure-bearing rim of a coffee capsule shell;
• wherein an annular step extending downward is disposed on a lower portion of the upper capsuling cover, and the annular step is configured to press and connect a sealing rim of a sealing film to the coffee capsule shell;
• wherein in an engaged state of the upper capsuling cover and the lower capsuling box, when an operator manually applies a pressure from top to bottom, the sealing rim of the sealing film is adhered to the pressure-bearing rim of the coffee capsule shell to seal the coffee capsule shell;
• wherein an outer annular boss extending downward is disposed outside the annular step, and the outer annular boss is configured to bend the outer edge of the sealing rim of the sealing film downward along an outer diameter of the ring of the coffee capsule shell, so as to enhance sealing reliability between the sealing film and the coffee capsule shell;
• wherein an inner diameter of the outer annular boss is greater than an outer diameter of the annular protrusion;
• wherein an annular groove is disposed between the outer annular boss and the annular step, the annular groove is configured to accommodate the ring of the coffee capsule shell, and a width of the annular groove is not less than the cross-sectional diameter of the ring of the coffee capsule shell.