Injection mold for plastic caps, with carriage

A mold for the injection-molding of caps with tamper-proofing bands made of plastic, of the type comprising:

• a bottom plate and a top plate which can move with respect to one another in translation between a mold-open position and a mold-closed position and which define at least one cavity for the molding of a cap,
• and in relation with each cavity:
• a moving core,
• at least two sliders for the external molding of the tamper-proofing band, each of which has a half-cavity of the band and which can move in translation between a position known as the molding position in which the sliders are close together and a position known as the mold-release position in which the sliders are separated,
• and means of operating the translation of the sliders,
• wherein the means of operating the sliders comprise drive means and the movements of the sliders are independent of the movements of the bottom and top plates.