B29C45/4005

METHOD AND APPARATUS FOR ROTARY MOLDING

A rotary molding system for molding food products, mold cavities formed when a mold shell rotates mold shapes disposed along the mold shell into a fill position between a fill plate and a wear plate. Molded food products are removed from mold cavities using knock-out cups, the use of air pressure, or the use of a vacuum source disposed below the mold cavity, without the need to slow the rotation of the mold shell. Knock-out cups may be used with a heating system to reduce accumulation of unwanted materials on the knock-out cups. The rotary molding system can also be used to form products with contoured surfaces. A smart tagging system can be used to ensure that compatible sets of mold shells and knock out cups are being used. A vacuum region may be disposed upstream of the fill position to remove air within the mold cavity prior to filling.

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.

MOLD CLAMPING DEVICE AND INJECTION MOLDING MACHINE
20240316848 · 2024-09-26 · ·

A mold clamping device includes: a fixed platen; a movable platen; a rotary platen provided on one platen of the fixed platen and the movable platen, to which a mold is attachable; and an extrusion device provided on the one platen and configured to extrude a molded article from the mold. The rotary platen is disposed at a side of a surface of the one platen facing the other platen to face the one platen and is rotatable via a bearing structure. The extrusion device is disposed on a surface of the one platen opposite to the surface facing the other platen. The bearing structure is configured to bear the rotary platen at a position away from a rotation center in a radial direction. The extrusion device has an ejector rod that protrudes radially inward than the bearing structure.

DEVICE FOR DEMOLDING NEGATIVES IN THERMOPLASTIC INJECTION MOLDS
20180257280 · 2018-09-13 ·

The device for demolding negatives in thermoplastic injection molds includes an ejector (3), which comprises an ejector profile (5) for the fastening thereof to an ejector plate (2), and a figure insert (6) with a profile that is complementary to the piece (4) to be molded, wherein said ejector (3) further comprises a flexible element (7) arranged between the ejector profile (5) and the figure insert, which pushes said figure insert (6) in order to demold the negative by means of angular displacement and stretches said figure insert (6) so as to return the ejector (3) to the injection position thereof.

It makes it so molding sliders are no longer necessary, hence, these spaces, the costly sliders, and the painstaking machining processes for the installation thereof in the molds are no longer required.

THREADED MOLD DECOUPLING SYSTEM
20180215087 · 2018-08-02 · ·

A threaded mold decoupling system includes at least one unscrewing assembly rotatably coupled to a mounting plate and disposed in proximity to a threaded core of an injection mold, an elevator assembly having a first elevator element rotatably coupled to the mounting plate and a second elevator element connected to a fixed plate, the fixed plate opposing the mounting plate, and a driving assembly disposed in operative communication with the at least one unscrewing assembly and with the first elevator element of the elevator assembly. The driving assembly is configured to actuate the at least one unscrewing assembly to rotate a molded article about a longitudinal axis of the threaded core and actuate the first elevator element relative to the second elevator element to linearly translate the mounting plate relative to the fixed plate and to translate the molded article along the longitudinal axis of the threaded core.

Plastic faucet body and a die for molding the same
12122080 · 2024-10-22 ·

A plastic faucet body and a die for molding the same are provided. The plastic faucet body comprises a left water inlet pipe and a right water inlet pipe, where a connecting cross-beam is disposed between the left water inlet pipe and the right water inlet pipe, the left water inlet pipe and the right water inlet pipe are embedded with a threaded copper pipe, respectively, the copper pipes are formed integrally with the plastic faucet body by means of a single stage process and are in communication with the corresponding left water inlet pipe and the right water inlet pipe, respectively.

Method and apparatus for rotary molding

A rotary molding system for molding food products, mold cavities formed when a mold shell rotates mold shapes disposed along the mold shell into a fill position between a fill plate and a wear plate. Molded food products are removed from mold cavities using knock-out cups, the use of air pressure, or the use of a vacuum source disposed below the mold cavity, without the need to slow the rotation of the mold shell. Knock-out cups may be used with a heating system to reduce accumulation of unwanted materials on the knock-out cups. The rotary molding system can also be used to form products with contoured surfaces. A smart tagging system can be used to ensure that compatible sets of mold shells and knock out cups are being used. A vacuum region may be disposed upstream of the fill position to remove air within the mold cavity prior to filling.

INJECTION STRETCH BLOW MOLDING METHOD AND APPARATUS FOR PRODUCING INTERNALLY THREADED CONTAINERS
20180178435 · 2018-06-28 ·

A carrier assembly for injection molding a parison with internal threads. The carrier assembly may be used with an injection stretch blow molding machine that includes a core rod. The carrier assembly comprises a carrier insert surrounding a portion of the core rod. The carrier insert includes a thread-forming portion presenting an interior radial surface and an exterior radial surface. The interior radial surface is configured to be positioned adjacent to the core rod, and the exterior radial surface includes a threaded protrusion configured to extend away from the core rod. The carrier assembly also includes a pinion insert surrounding at least a portion of the threaded protrusion of the thread-forming portion of the carrier insert. The pinion insert is spaced apart from the thread-forming portion of the carrier insert so as to present a thread-forming cavity between the pinion insert and the carrier insert.

SYSTEM FOR INJECTION MOLDING AND MOLD BASE THEREFOR
20180178426 · 2018-06-28 · ·

The invention relates to a mold base for a system for injection molding of plastic parts, in particular for automotive body and/or structure components, preferably for baffle and/or reinforcing structures, comprising at least one, namely first, bridge manifold with at least a first and a second bridge manifold opening for feeding material to at least a first and a second sub-manifold of at least one mold insert assembly and at least a first and a second control valve, wherein the first control valve is provided and configured for controlling the material feed through the first bridge manifold opening and the second control valve is provided and configured for controlling the material feed through the second bridge manifold opening.

Injection Molding Apparatus and Method of Use
20180147762 · 2018-05-31 · ·

The present invention surrounds an apparatus and method for the use in injection molding of articles of manufacture using an injection molding apparatus having a valve-gate pin or a plurality of valve-gate pins for actuation to extend and retract from a cavity within an injection mold. The valve-gate pin may have a retention feature or retention features configured for the retention of molded parts such that the retraction or extension of the valve-gate pin provides part removal from an associated injection mold. Further, the valve-gate pin may have a feature or features to facilitate the injection of fluids, gases or particles during or after the primary injection process. Additionally, a plurality of such valve-gate pins may be employed within each mold cavity, or within each valve-gate actuation system.