×

Valve pin position adjuster

  • US 10,322,537 B2
  • Filed: 08/02/2017
  • Issued: 06/18/2019
  • Est. Priority Date: 05/29/2013
  • Status: Expired due to Fees
First Claim
Patent Images

1. An injection molding apparatus comprising a top clamp plate mounted to a mold, a heated manifold mounted between the top clamp plate and the mold, the heated manifold receiving and distributing an injection fluid to an exit of a fluid delivery channel to a cavity of the mold,an actuator comprising a housing having a chamber enclosing a drive member that is fixedly interconnectable to a valve pin, the drive member driving the valve pin reciprocally upstream and downstream through the fluid delivery channel to reciprocally open and close the exit,the actuator housing being slidably mounted upstream of the fluid delivery channel for controlled upstream and downstream axial movement of the actuator housing and the drive member along a path complementary to the axial path of travel of the valve pin,a mounting plate and an axial position adjustment screw screwably mounted within the mounting plate upstream of the housing of the actuator,the adjustment screw being controllably screwable clockwise and counterclockwise within the mounting plate to move along an upstream and downstream path complementary to the axial path of travel of the drive member and the valve pin,the valve pin being movable to selectable starting or ending injection cycle axial positions upon interconnection of the valve pin to the drive member, clockwise or counterclockwise screwing of the adjustment screw within the mounting plate to corresponding selectable axial positions and subsequent interconnection of the adjustment screw to the actuator, andwherein the actuator housing is mounted for axial movement without rotation.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×