Patent ID: 8079108

Claim:
A cleaning system, used for cleaning plastic in a nozzle of a molding apparatus, the nozzle comprising a nozzle opening and a through hole connected with the nozzle opening, the plastic being received in the through hole, the through hole defining a first central axis, the cleaning system comprising: a bottom fixing sleeve configured for securely fixing the nozzle, and comprising two flutes; a top guiding sleeve configured for coupling with the bottom fixing sleeve, the top guiding sleeve comprising a guiding hole defined therein and two flanges correspondingly arranged on an end of the top guiding sleeve nearer to the bottom fixing sleeve; and a knocking stick being movable along the guiding hole of the top guiding sleeve such that the knocking stick strikes the plastic in a direction along the first central axis of the through hole of the nozzle; wherein the two flutes of the bottom fixing sleeve are correspondingly arranged on an end of the bottom fixing sleeve nearer to the top guiding sleeve, the two flanges are arranged correspondingly to the two flutes and being tightly received in the two flutes.