Husky Injection Molding Systems Limited

James Osborne Plumpton

Edward Joseph Jenko

Abdeslam Bouti

Patrice Fabien Dezon-Gaillard

Manon Danielle Belzile

Sarah Kathleen Overfield

Paul Richard Blais

John Knapp

Brian Esser

Patrice Fabien Gaillard

Thomas Andrew Lawrence

Sami Samuel Arsan

Martin H Baumann

The present application describes injection molding machines and, more particularly, a removable nozzle tip and nozzle assembly for use with an injection molding machine and an engagement tool and methods for replacing a nozzle tip. In an aspect, an injection molding machine may include a nozzle. The nozzle may include a nozzle housing and a nozzle tip threadably attached to the nozzle housing. At least a portion of an exterior wall of the nozzle housing and at least a portion of an exterior wall of the nozzle tip may align to provide a cylindrical surface. The injection molding machine may further include a tubular heater enclosing at least a portion of the continuous cylindrical surface. The nozzle tip does not include a torque feature in any location that is downstream of the tubular heater and upstream of a mold gate of the nozzle.

Nozzle with removable nozzle tip configured for improved heating

Disclosed is a method of adjusting a motion profile of a shooting pot plunger for use in a molding system, the shooting pot plunger slidably movable within a shooting pot cavity, the method comprising: sensing a characteristic at a predetermined location in an injection circuit of the molding system; determining that the sensed characteristic is outside of a threshold range; adjusting the motion profile of the shooting pot plunger to account for determining that the sensed characteristic is outside of the threshold range; and storing the adjusted motion profile in a memory.

Shooting pot plunger control

Disclosed herein, amongst other things, is a gate and a related method of forming the gate, having structure and steps of providing a base of a first base material, the base having a gate area, adding a layer of a second material to the base in the gate area by an additive manufacturing process to form a metallurgical bond, wherein the second material has a characteristic that differentiates the second material from the first base material and modifying an inner surface in the gate area comprised of the second material to define the gate.

Mold gate structures

Systems and methods for controlling the closing speed of valve gated nozzles are disclosed. In one embodiment, a hot runner have a valve gated nozzle including a valve stem movable between an open position and a closed position is provided. The valve stem is moved at a first speed for a first portion of valve stem closure and a second speed for a second end portion of the valve stem closure.

System for controlling the closing speed of valve gated nozzles

A melt distribution device () including a heat-receiving part () and a heater (). The heater () is coupled to the heat-receiving part () so to maintain thermal communication between the heater () and the heat-receiving part (). The heater () is also coupled to the heat-receiving part () so to isolate, at least partially, the heater () from receiving stress and strain transmission from the heat-receiving part ().

Melt distribution device

A mold-tool system () of a runner system (), the mold-tool system () comprising: a manifold extension () being configured to couple with a manifold assembly () of the runner system (); and a biasing assembly () extending from the manifold extension (), the biasing assembly () being configured to arrange, in use, sealing contact between the manifold extension () and a nozzle assembly ().

Mold-tool system having a manifold extension and biasing assembly

A mold-tool system is provided which includes a manifold body including an inlet assembly, a plurality of outlets spaced from the inlet assembly, and an uninterrupted melt channel associated with each outlet and extending between the inlet assembly and its associated outlets. Each melt channel may have a length which is substantially identical to the length of the other melt channels.

Mold tool system having manifold body including uninterrupted melt channels

A mold-tool system comprising: a manifold assembly, including: a manifold body defining: an inlet assembly; outlets being set apart from the inlet assembly; and uninterrupted melt channels extending between the inlet assembly and the outlets.

Mold-tool system having a manifold body defining uninterrupted melt channels

According to an aspect, there is disclosed a hot runner system (), comprising: a first surface () being elastically deformable; a second surface () forming, in cooperation with the first surface (), a melt-leakage gap () being located between the first surface () and the second surface (); and an active material () being: (i) coupled with the first surface (), (ii) held normally stationary, (iii) configured to be operatively coupled with a signal source (), and (iv) configured to elastically deform in response to receiving a signal from the signal source (), upon elastic deformation of the active material (), the first surface () becomes moved toward the second surface () such that a size () of the melt-leakage gap () becomes controlled.

Hot runner system having active material

Disclosed, amongst other things, is a gate insert of an injection mold that includes a base member. The base member defines a nozzle interface for receiving, in use, a nozzle of a melt distribution system that is heated, in use, by a heater, and a gate, the gate configured to fluidly link, in use, a melt channel of the nozzle with a molding cavity. The gate insert further includes a thermal regulator associated with the base member, the thermal regulator includes a direct energy conversion device that is capable of heating and cooling, wherein the thermal regulator is controllably operable, in use, to control the temperature of the gate.

Gate insert heating and cooling

Disclosed, amongst other things, is a melt distribution apparatus of a hot runner and a related method for balancing melt flow to a plurality of drops. The melt distribution apparatus includes a plurality of chokes with each choke of the plurality of chokes being associated with a corresponding one of a drop of a plurality of drops. Each choke of the plurality of chokes being configured to contribute, during an injection of a molding material therethrough, a choke melt-pressure loss such that the plurality of chokes contribute an aggregate choke melt-pressure loss that is generally between 10% and 75% of an aggregate hot runner melt-pressure loss.

Growing community of inventors

Enosburg Falls, VT, United States of America

James Osborne Plumpton