摘要:
A molding system includes a mold having a mold cavity; a molding machine configured to fill the mold cavity with a composite molding resin including a polymeric material having a plurality of fibers; a computing apparatus connected to the molding machine; and a controller connected to the computing apparatus. The computing apparatus includes a processor configured to generate a previous orientation distribution of the fibers in the mold cavity based on a molding condition for the molding machine, a rotary diffusional distribution of the fibers based on the previous orientation distribution of the fibers, and an updated orientation distribution of the fibers based on the rotary diffusional distribution of the fibers. The controller is configured to control the molding machine to perform an actual molding with the molding condition for injecting the composite molding resin into at least a portion of the mold cavity.
摘要:
The invention relates to a method for filling a mold cavity of a molding tool in a volumetrically correct manner. A molded part/volume equivalence is ascertained during a learning phase, and production injection-molding cycles are influenced during a production phase such that the molded part/volume equivalence ascertained during the learning phase is also satisfied during the production injection-molding cycle.
摘要:
A method and apparatus of controlling commencement of an injection of a melt stream of moldable material from an auxiliary injection unit. A sensor is placed in an injection molding system to sense a condition related to an injection of a first melt stream of a first moldable material provided by a primary injection unit. Commencement of a second melt stream of a second moldable material from the auxiliary injection unit is initiated upon the sensed condition related to the injection of the first melt stream being detected at a preselected value. The sensed condition may be a pressure, velocity or temperature of the first melt stream as provided by a direct sensor, a force or strain on a hot runner component as provided by an indirect sensor or the occurrence of a function of the injection molding system as provided by a functional sensor.
摘要:
There is disclosed a method for controlling a fill speed of an injection unit, the method executable in a computing apparatus configured to control a plunger actuator of the injection unit. The method comprises receiving an indication of a mold-cavity-filling parameter, the mold-cavity-filling parameter being indicative of a number of molding cavities of a multi-cavity mold having been filled; responsive to the mold-cavity-filling parameter satisfying a pre-determined threshold, releasing a control signal to the plunger actuator to control speed associated with a plunger of the injection unit from a first filling speed to a second filling speed.
摘要:
A control system for use with a multi-layer molding device having an inspection device for measuring a characteristic of a product of a cavity of the molding device and a controller adapted to receive information corresponding to the at least one characteristic from the inspection device and to alter the molding device based on the information.
摘要:
In an injection molding machine having upstream and downstream channels communicating with each other for delivering fluid material to one or more mold cavities, apparatus for controlling delivery of the melt material from the channels to the one or more mold cavities, each channel having an axis, the downstream channel having an axis intersecting a gate of a cavity of a mold, the upstream channel having an axis not intersecting the gate and being associated with an upstream actuator interconnected to an upstream melt flow controller disposed at a selected location within the upstream channel, the apparatus comprising a sensor for sensing a selected condition of the melt material at a position downstream of the upstream melt flow controller; an actuator controller interconnected to the upstream actuator, the actuator controller comprising a computer interconnected to a sensor for receiving a signal representative of the selected condition sensed by the sensor, the computer including an algorithm utilizing a value indicative of the signal received from the sensor as a variable for controlling operation of the upstream actuator; wherein the upstream melt flow controller is adapted to control the rate of flow of the fluid material at the selected location within the upstream channel according to the algorithm.
摘要:
A method for injection molding a layer of phase change material around a surface of a plurality of identical motor components or hard disc drive components which includes providing a plurality of motor components or hard disc drive components; placing a motor component or hard disc drive component in a mold cavity of an injection molding machine having a controllable fill rate and a controllable injection pressure; closing said mold cavity; injecting a molten phase change material into said mold cavity at a fill rate and injection pressure; monitoring pressure in the mold cavity; controlling the fill rate of molten phase change material to obtain said motor component or hard disc drive component with the phase change material thereon, having a reproducible resonance spectrum; and repeating the above steps to produce a plurality of motor components or hard disc drive components each having a substantially uniform resonance spectrum.
摘要:
A method for injection molding a layer of phase change material around a surface of a plurality of identical motor components or hard disc drive components which includes providing a plurality of motor components or hard disc drive components; placing a motor component or hard disc drive component in a mold cavity of an injection molding machine having a controllable fill rate and a controllable injection pressure; closing said mold cavity; injecting a molten phase change material into said mold cavity at a fill rate and injection pressure; monitoring pressure in the mold cavity; controlling the fill rate of molten phase change material to obtain said motor component or hard disc drive component with the phase change material thereon, having a reproducible resonance spectrum; and repeating the above steps to produce a plurality of motor components or hard disc drive components each having a substantially uniform resonance spectrum.
摘要:
The present disclosure provides a molding system for preparing a fiber-reinforced thermoplastic composite article. The molding system includes: a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a composite molding material including a polymeric resin and a plurality of fibers; a processing module configured to generate an anisotropic stress distribution of the composite molding material in the mold cavity based on a molding condition for the molding machine; and a controller coupled to the processing module and configured to control the molding machine with the molding condition to perform an actual molding process for preparing the fiber-reinforced thermoplastic composite article. The anisotropic stress distribution of the composite molding resin is generated based in part on consideration of an integral effect of an elongational viscosity and a shear viscosity of the composite molding material.
摘要:
A temperature control device (14) for a shaping tool (3) or component of a shaping working machine comprising at least one temperature control branch (2, 2′) connected to a feed (5), and a pump system including at least one pump (13) for the delivery of temperature control medium in the feed (5), wherein there is provided at least one sensor by which at least one of the parameters from the group of temperature, through-flow amount and pressure can be detected and that there is provided a control or regulating device for regulating or controlling a delivery of the pump system, to which signals from the at least one sensor can be fed. A method of operating such a device is also described.