B29C2945/76752

Method for evenly distributing plastic melt in a hot runner system using strain gauges

A hot runner injection molding apparatus, and method of use, is disclosed in which strain gauges are provided in the temperature zones of the hot runner injection molding apparatus and a hot runner controller creates a target strain profile, detects deviations from the target strain profile in any temperature zone based on the strain readings provided by the strain gauges in each temperature zone, and instructs correction of deviations from the target strain profile in any deviating temperature zone by adjusting the heat produced by a heater or heaters in the deviating temperature zone. The target strain profile may be based on a median or average of strain readings provided over time by the strain gauges in each temperature zone. A hollow installation tube for placing the strain gauges in the hot runner injection molding apparatus is also disclosed.

A METHOD AND AN APPARATUS FOR INJECTION MOULDING OF A URINARY CATHETER
20200179644 · 2020-06-11 ·

A method of forming a urinary catheter is disclosed that includes injecting a polymer melt through a primary melt channel and into an elongated recess around an outer surface of a core; and controlling a first pressure of the polymer melt in a first secondary melt channel separately and individually from a second pressure of the polymer melt in a second secondary melt channel and reducing stress of the polymer melt along the elongated recess. Opening the mould and removing the core provides a moulded intermittent urinary catheter having an open distal end and a closed proximal tip.

METHOD FOR EVENLY DISTRIBUTING PLASTIC MELT IN A HOT RUNNER SYSTEM USING STRAIN GAUGES

A hot runner injection molding apparatus, and method of use, is disclosed in which strain gauges are provided in the temperature zones of the hot runner injection molding apparatus and a hot runner controller creates a target strain profile, detects deviations from the target strain profile in any temperature zone based on the strain readings provided by the strain gauges in each temperature zone, and instructs correction of deviations from the target strain profile in any deviating temperature zone by adjusting the heat produced by a heater or heaters in the deviating temperature zone. The target strain profile may be based on a median or average of strain readings provided over time by the strain gauges in each temperature zone. A hollow installation tube for placing the strain gauges in the hot runner injection molding apparatus is also disclosed.

Injection Molding System and Method with Task Based User Interface

An injection molding task based navigation system for a computer user interface, wherein the navigation system automatically presents the user with a set of tasks that can be performed based on the system state(s) of the injection molding apparatus, the user class (e.g., level or credentials) and the device by which the user has gained access to the navigation system.

Method for evenly distributing plastic melt in a hot runner system using strain gauges

A hot runner injection molding apparatus, and method of use, is disclosed in which strain gauges are provided in the temperature zones of the hot runner injection molding apparatus and a hot runner controller creates a target strain profile, detects deviations from the target strain profile in any temperature zone based on the strain readings provided by the strain gauges in each temperature zone, and instructs correction of deviations from the target strain profile in any deviating temperature zone by adjusting the heat produced by a heater or heaters in the deviating temperature zone. The target strain profile may be based on a median or average of strain readings provided over time by the strain gauges in each temperature zone. A hollow installation tube for placing the strain gauges in the hot runner injection molding apparatus is also disclosed.

Method of simulating a shaping process

A method of simulating a shaping process involves calculating states of objects involved in the shaping process in discrete and successive time steps with presetting of conditions, and the conditions represent input parameters of the shaping process. After a time step which is before the end of the simulated shaping process, (a) a check on the calculated states of the objects involved in the shaping process is carried out based on a quality criterion. If the check in step (a) shows that the quality criterion is not met, then (b) at least one of the following is carried out: resumption of the simulation with repeated calculation of the time step and/or a preceding time step, and continuation of the simulation with calculation of a time step following the time step. When method step (b) is carried out, the conditions are at least partially altered.

Footwear component manufacturing system

A system including an injector, a press, and a robotic conveyance is used to form a physically foamed article of footwear component from a single-phase solution of a polymeric composition and a supercritical fluid. The parameters and features of the system are configured for the formation of the footwear component in an automated manner with enhanced throughput by the system.

FOOTWEAR MOLD ASSEMBLY FOR INJECTION-MOLDING

Tooling and components of an injection-molding system may be used to mold a foam article. The tooling and components may include features that control parameters of the injection-molding and foaming process, such as temperature, pressure, shot size, shot placement, and the like.

FOOTWEAR MOLD SYSTEM FOR INJECTION-MOLDING

Tooling and components of an injection-molding system may be used to mold a foam article. The tooling and components may include features that control parameters of the injection-molding and foaming process, such as temperature, pressure, shot size, shot placement, and the like.

Shooting pot refill timing

Disclosed is a method of refilling a shooting pot cavity in a molding system, the method comprising: determining that a trigger event has occurred in the molding system; and coordinating a refill of the shooting pot cavity with the occurrence of the trigger event.