Abstract: 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.

Abstract: A mold assembly includes a first mold portion defining a cavity having a first wall with an edge and a second mold portion defining a surface positionable at a predetermined distance from the edge. A lifter is positionable within the cavity and is spaced apart from the first wall and the surface, the lifter including a plurality of pins extending toward the first wall and aligned in a first direction generally parallel with the edge.

Abstract: A device for polymerizing lactams in molds includes a hopper for storing solid lactam and a lactam feeding component that includes a plasticizing screw so as the lactam to be melted and simultaneously taken in a dosed manner to a mixing chamber. The device further includes a first dosing component to feed a liquid initiator, and a second dosing component to feed a liquid activator. The mixing chamber is configured to receive in a dosed manner the lactam, the initiator, and the activator from the feeding and dosing components. The mixing chamber has three separate inlets to receive, separately, the lactam, the initiator, and the activator, to allow them to flow into the mixing chamber coming into contact with one another for the first time, at the moment immediately prior to entering into a mold located adjacent the chamber and arranged for the polymerization reaction to take place inside the mold.

Abstract: A mold apparatus includes a first pivot arm having a first mold surface, a second pivot arm having a second mold surface opposing the first mold surface, and a driving cam member having a first driving cam surface configured to engage a first driven cam surface of the first arm to pivot the first arm in a first direction, and a second driving cam surface configured to engage a second driven cam surface of the second arm to pivot the second arm in a second direction opposite the first direction. The driving cam member moves between a first position, in which the first mold surface of the first arm and the second mold surface of the second arm form a continuous mold surface, and a second position, in which the first arm and the second arm are separated to enable removal of a molded element having an undercut mold surface contour.

Abstract: A nozzle retention arrangement is provided for an injection molding manifold system, such as a hot runner manifold system. The nozzle retention arrangement couples an injection nozzle to a distribution manifold in a manner that locates the nozzle in its final operating position and applies an initial assembly load to retain the nozzle in position on the manifold to facilitate installation of a manifold system into a manifold plate. The nozzle retention arrangement may provide a compliant load application feature to limit sealing surface pressure between the nozzle and the manifold to prevent surface damage between the components, while also accommodating thermal expansion of the heated components during operation of the system. The nozzle retention arrangement may also provide a load control feature to prevent the machining quality of the nozzle bore in the manifold plate from determining the sealing load between the nozzle and the manifold.

Abstract: An insert of a die for molding a speaker grille includes a forming portion. The forming portion defines a forming surface, from which a plurality of pins extend for forming apertures in a speaker grille. The forming surface defines a plurality of apertures disposed at spaced locations between the pins. The apertures are interconnected with a plurality vent channels interconnecting the apertures with the vent channels for venting air disposed in a die when melted polymer used to form the speaker grille is injected into a die cavity defined by the die. The forming member and the vent channels are formed as a monolithic construction.

Abstract: An insert of a die for molding a speaker grille includes a forming member. The forming member defines a forming surface, from which a plurality of pins extend for forming apertures in a speaker grille. The forming surface defines a plurality of apertures disposed at spaced locations between the pins. The apertures are interconnected with a plurality vent channels communicating the apertures with the vent channels for venting air disposed in a die when melted polymer used to form the speaker grill is injected into the die. The forming member and the vent channels are formed as a monolithic construction.

Abstract: The outer circumferential surface of a bottom 4 of a preform 1 and a lower site 3a of a trunk 3 continuous with the bottom 4 is mechanically brought into intimate contact with a cooling pot 16 to undergo reliable cooling. The trunk 3, excluding the lower site 3a of the trunk 3 continuous with the bottom 4, is heated to a predetermined temperature by a heating block 17. When blow-molded, the so treated preform 1 can provide a container having a bottom of a desired thickness and having a uniformly stretched thin-walled trunk.

Abstract: A molding method for the production of articles molded by injecting plastic material into a mold cavity by a plurality of injectors electrically sequentially actuated under an electronic control according to a cycle providing for a step for filling the mold cavity, followed by a step for packing the plastic material in the mold cavity. Each injector, regardless of both its position with respect to the mold cavity and its opening speed, is controlled in at least one of the following control modes: i) partially closing the injector from a maximum open condition to a less opened condition in the filling step, ii) setting the injector in a partially open condition and then opening the injector to a more opened condition, in the packing step.

Abstract: A injection molding system extracts molding data and inspection data having a difference between a first position information of a conveyance part where a molded article produced by an injection molding apparatus is picked up by a conveyor device and a second position information of the conveyance part where the molded article is inspected by an inspection device is equal to a predetermined distance between a pickup position and an inspection position, and stores the molding data and the inspection data in association with each other as a set. This configuration makes it possible to associate molding data of an injection molding apparatus when producing a molded article and inspection data with each other to control the quality of molded articles.

Abstract: A nozzle terminal for injectors of plastic material injection moulding apparatus, includes a tubular tip defining a flow passage for the injected plastic material and including a radially inner element made of a first abrasion resistant material, an intermediate element made of a second high thermal conductivity material, and a radially outer element made of a third corrosion resistant material. The radially inner, intermediate and radially outer elements are joined to each other in intimate mutual contact, and the radially outer element fully covers the intermediate element thus insulating it from the environment.

Abstract: A side gate nozzle assembly for a hot runner apparatus comprises a disc shaped base body, a probe member, a sealing insulator, and a shape memory alloy washer. The probe member with a probe channel extends from the base body. A molten molding material is received through a melt channel of the nozzle body, and allowed to pass through the probe channel to be transferred to a cavity of a cavity member. The shape memory alloy washer is positioned between the base body and the sealing insulator. The shape memory alloy washer distorts linearly to push the sealing insulator and the probe member according to change in temperature due to transfer of the molten molding material from the melt channel to the cavity member via the probe channel. The distorted shape memory alloy washer prevents leakage of the molten molding material from the melt channel, and the probe channel.

Abstract: A method for producing a molded product 70 involves the use of an insert material 80. The method for producing the molded product 70 includes a transfer step for transferring the insert material 80 into a mold 40 using a transfer device 87; a placement step for placing the insert material 80 in the mold 40 by deforming the insert material 80 in the mold 40; and a molding step for injecting a molding material into the mold 40, thereby producing the molded product 70 having the insert material 80.

Abstract: A retaining pin for handling injection molded preforms includes a body including an internal body flow channel, and a plunger coupled to the body and movable relative to the body between advanced and retracted positions. The plunger includes an internal plunger flow channel. The plunger further includes a plunger abutment surface directed away from the body. The plunger is biased toward the advanced position and movable to the retracted position by engagement of the plunger abutment surface with an inner surface of a closed end of a preform when the preform and retaining pin are moved toward each other. The body flow channel and the plunger flow channel are in fluid communication when the plunger is in the retracted position. Fluid communication between the plunger flow channel and the body flow channel is inhibited when the plunger is in the advanced position.

Abstract: A mold (10) comprising a plurality of blocks (11, 13) that, in an assembled position, define a mold cavity, the mold being characterized in that it includes at least one pusher (21), said pusher (21) being configured to be housed in a first block (11) of said plurality, in a side facing the mold cavity, and, when the pusher (21) is housed in said first block (11), to present a first surface (S1) flush with the mold cavity, and in that the mold (10) also includes actuator means (23, 25) enabling the pusher (21) to be moved relative to the first block (11), and sealing means (19, 27) configured to isolate the actuator means (23, 25) from the mold cavity. An associated molding method.

Abstract: A composite material molding method is provided for forming a composite material. The molding includes disposing carbon fiber in a cavity inside an openable and closable mold, injecting resin into the cavity in a state in which a clamping pressure is exerted on the mold and curing the resin. When a threshold value of the pressure inside the cavity is set to a pressure that is lower than the clamping pressure and the resin is injected into the cavity while exerting an injection pressure that is equal to or greater than the clamping pressure on the resin until the pressure inside the cavity reaches the threshold value. Then, after the pressure inside the cavity has reached the threshold value, the inside of the cavity is suctioned.

Abstract: In an injection molding machine, a locking mechanism of a safety cover of the injection molding machine is operated to be in a locked state in a case where injection pressure inside an injection device is equal to or higher than a predetermined value. Accordingly, a maintenance work of the injection molding machine can be performed only in a state in which pressure inside an injection cylinder is sufficiently lowered, so that a risk of jetting of resin is lowered and safety of an operator can be secured.

Abstract: A mold component configured to be actuated between: a first configuration in which the mold component comprises a passage that allows passage of fluid (such as air) and prevents passage of the melt; and a second configuration in which the passage is actuated such as to become part of a molding surface.

Abstract: The invention relates to an injection molding tool for producing an injection molded part, in particular made of plastic, having an injection mold which has a cavity corresponding to the negative of the shape of the injection molded part to be produced, wherein a plasma nozzle, which is configured to produce an atmospheric plasma jet, is attached to the injection mold in such a way that an injection molded part produced in the injection mold can be impacted in the injection mold with a plasma jet.

Abstract: Disclosed is an edge gating injection molding apparatus for delivering a moldable material to an array of mold cavities, the array can have a first column and a last column of mold cavities, the edge gating injection molding apparatus comprising: a unidirectional delivery body for delivering a first stream of the moldable material to a different one of each mold cavity of the first column and the last column of mold cavities, via a first location of the different one of each mold cavity of the first column and the last column of mold cavities; and a bidirectional delivery body for delivering a second stream of the moldable material to the different one of each mold cavity of the first column and the last column of mold cavities, via a second location of the different one of each mold cavity of the first column and the last column of mold cavities.