B29C45/762

Injection Molding of Crosslinking Polymers Using Strain Data

Non-time dependent calculated variables based on measured strain are used to effectively determine an optimal hold profile for an expanding crosslinking polymer part in a mold cavity. A system and/or approach may first inject molten expanding crosslinking polymer into a mold cavity, then measure strain at the mold cavity or at another location within the injection molding system, and then calculate at least one non-time dependent variable during an injection molding cycle. Next, the system and/or method commences a hold profile for the part, and upon completing the hold profile, the part is ejected from the mold cavity, whereupon a cure profile is commenced.

Injection Molding of Crosslinking Polymers

Non-time dependent measured variables are used to effectively determine an optimal hold profile for an expanding crosslinking polymer part in a mold cavity. A system and/or approach may first inject molten expanding crosslinking polymer into a mold cavity, then measure at least one non-time dependent variable during an injection molding cycle. Next, the system and/or method commences a hold profile for the part, and upon completing the hold profile, the part is ejected from the mold cavity, whereupon a cure profile is commenced.

Molding machine control system
12053917 · 2024-08-06 · ·

A molding machine control system includes a display section configured to display an operation item of an injection molding machine and an operation item of a peripheral equipment included in a setup operation of the injection molding machine, wherein the display section displays a first discriminatory indication configured to discriminate JOB 1 as a first job of the injection molding machine and JOB 2 as a second job of the injection molding machine, a progress situation of the operation item of the injection molding machine corresponding to JOB 1, a progress situation of the operation item of the peripheral equipment corresponding to JOB 1, a progress situation of the operation item of the injection molding machine corresponding to JOB 2, and a progress situation of the operation item of the peripheral equipment corresponding to JOB 2 in a view format.

SHOOTING POT REFILL TIMING
20180354178 · 2018-12-13 ·

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.

SHOOTING POT PLUNGER CONTROL

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.

PLANT BASED MATERIAL FOR INJECTION MOLDING
20180346667 · 2018-12-06 ·

The present invention provides a plant based material with high tensile strength, with high E-modulus, which have low water absorption, which can be injection molded, and which can be melted and remolded. The materials of the invention may be composite materials prepared by extrusion of a mixture comprising a) surface modified plant parts consisting of finely divided plant parts O-linked to one or more groups of the structure (I); b) polymethyl methacrylate (PMMA); c) thermoplastic polymer.

PLASTIC INJECTION-MOULDING MACHINE HAVING AT LEAST ONE CAMERA
20180311879 · 2018-11-01 · ·

A plastic injection-moulding machine includes an injection unit for processing a plastic mass to be moulded, and a closing unit having an injection-moulding tool having at least one cavity, into which the plastic mass processed by the injection unit is injected to produce a moulded part. A machine controller controls the injection unit and the closing unit, and a user interface device, which has at least one input means and at least one output means. The at least one output means is designed as a screen. At least one camera is provided to record a region of the plastic injection-moulding machine lying behind the user interface device, with the machine controller being designed to display the region recorded by the camera on the screen.

PLASTIC INJECTION-MOULDING MACHINE HAVING A DATA MEMORY FOR STORING TEXT INFORMATION AND/OR IMAGE INFORMATION
20180311878 · 2018-11-01 · ·

A plastic injection-moulding machine includes an injection unit for processing a plastic mass, and a closing unit having an injection-moulding tool with a cavity, into which plastic mass is injected by the injection unit to produce a moulded part. A machine controller controls the injection unit and the closing unit according to a machine program running on the machine controller. A user interface device communicates with the machine controller and has a screen for displaying text information and/or image information. The machine controller includes a data memory for storing the text information and/or image information in the form of data sets, and a process generator for manually assigning each state parameter of the plastic injection-moulding machine a data set. The process generator automatically writes the data set into the data memory or automatically reads out the data set for display on the screen in accordance with the associated state parameter.

In-Mold Non-Time Dependent Determination of Injection Molded Part Ejection Readiness

Non-time dependent measured variables are used to effectively determine an optimal ejection time of a part from a mold cavity. A system and/or approach may first measure at least one non-time dependent variable during an injection molding cycle. The part is ready to be ejected from the mold upon the measured variable reaching a threshold value indicative of, for example, a part temperature dropping below an activation temperature.

METHOD FOR DETERMINING AN ACTUAL VOLUME OF AN INJECTION MOLDABLE COMPOUND IN AN INJECTION MOLDING PROCESS

A method for determining an actual volume Vr of an injection-moldable compound during an injection-molding process is disclosed. The injection-moldable compound is introduced into at least one cavity of the mould. The method includes the steps of: a) determining a theoretical volume Vt from process variables at least during a filling phase of the injection-molding process, b) determining and/or measuring at least one value for at least one compound pressure pM, c) selecting a material-specific compression k (p), corresponding to the value of pM, of the injection-moldable compound, and d) calculating an actual volume Vr by taking into account the compression k (p).