DEVICE FOR ADJUSTING AMOUNT OF PLASTIC FLOWING IN RUNNER FOR MOLDING APPARATUS

摘要

A device for adjusting the runner opening degree of an injection mold is provided to secure a proper flow rate of resin by regulating the amount of resin supplied to the cavities at the runner located right before the cavities. An injection mold includes a plurality of cavities formed inside and a runner(14) supplying resin to the cavities. A device for adjusting the runner opening degree of injection mold is composed of an adjusting hole(28) threaded on the inside surface and connected to the runner, and an adjusting bolt(22) including a body portion(26) screwed into the adjusting hole and a head portion(24) formed on the top of the body portion. The head portion of the adjusting bolt raised/lowered through rotation regulates the flow path of the runner.