Abstract: An injection molding machine (1) having a stack mold (2) for producing injection molded parts comprises a fixed exterior molding part (3), a central block (5), as well as a mobile exterior molding part (4), with molding cavities being formed between the molding areas (9a, 9b) at the interior sides of the exterior molding parts (3, 4) and molding areas (10a, 10b) at opposite exterior sides of the central block (5). The central block (5) is supported rotationally or pivotally and at two exterior surfaces, adjacent to each other in the rotational or pivotal direction, molding areas (10a) are provided for first partial pre-molds (8a, 8c, 8e) and at the two other exterior surfaces, adjacent to each other, molding areas (10b) for second partial pre-molds (8b, 8d).

Abstract: A mold-tool system (100), comprising: a melt splitting device (102) being configured to interact with a melt distribution device (105), the melt splitting device (102) having: a single inlet (106); multiple outlets (108) being set apart from the single inlet (106), the multiple outlets (108) being configured for fluid communication with the melt distribution device (105); and uninterrupted melt channels (110) extending from the single inlet (106) and the multiple outlets (108).

Abstract: An injection molding system is disclosed that utilizes a melt channel wherein at least a portion of the melt channel has a noncircular cross-section for balancing shear in a melt stream of moldable material that flows therethrough. The noncircular cross-section of the melt channel portion may be, for e.g., capsule-shaped, extended egg-shaped, oval, teardrop-shaped, or peanut-shaped. A flow splitter is also disclosed that is positioned offset from a central axis of an upstream melt channel to protrude between inlets of respective downstream melt channels, where the upstream melt channel splits into the downstream melt channels, to thereby create a narrower inlet into one of the downstream melt channels and a wider inlet into the other of the downstream melt channels.

Abstract: There is provided an injection die characterized in that the injection die is separated into at least two pieces, that a cavity for frame is formed between the separated dies, that the cavity for frame is provided with an additional cavity via a coupling hole, and that the coupling hole communicating with the additional cavity is provided at a confluence point of a resin in melted condition of the cavity for frame, at around a gate, at around a cavity for a fixing component, or at around a cavity for frame of which thickness is deep.

Abstract: An injection molding apparatus is provided with a die having a hot nozzle, and a manifold formed by a hot runner. A communication passage that is in communication with the cavity is provided in the die, a concave portion defined at an end portion of the die, and the hot nozzle includes a nozzle body of a cylindrical shape that is inserted in the communication passage, and a flange portion that is formed at an end side of the nozzle body and is exposed outside of the communication passage, in which a band heater that heats the nozzle body is inserted between the communication passage and the nozzle body, and a ring heater that heats this flange is inserted in the concave portion and between the communication passage and the flange.

Abstract: One or more nozzles define separate nozzle channels. The nozzles are coupled to a manifold, so that each of the nozzle channels communicates with a different mold gate. A molding material distribution insert is coupled to the manifold and has a body defining a distribution channel and a plurality of drop channels equal in number to the nozzle channels. The distribution channel is an open distribution channel formed on an outer surface of the body and enclosed by the manifold. The drop channels intersect the distribution channel and exit the body at a different one of the nozzle channels. A valve pin bushing can extend into the drop channels. Valve pins can extend from actuators, through the valve pin bushing and the drop channels, and to the mold gates. A valve pin holder can be coupled to the actuator and coupled to heads of the valve pins.

Abstract: According to an aspect, there is disclosed a hot runner system (100), comprising: a first surface (205) being elastically deformable; a second surface (210) forming, in cooperation with the first surface (205), a melt-leakage gap (215) being located between the first surface (205) and the second surface (210); and an active material (220) being: (i) coupled with the first surface (205), (ii) held normally stationary, (iii) configured to be operatively coupled with a signal source (225), and (iv) configured to elastically deform in response to receiving a signal from the signal source (225), upon elastic deformation of the active material (220), the first surface (205) becomes moved toward the second surface (210) such that a size (235) of the melt-leakage gap (215) becomes controlled.

Abstract: A method of testing pressed food product operational characteristics of a food processor having a press as a portion of a processing line as contemplated. Specifically, the test mold station provides a mold plate having at least one cavity less than an operational mold cavity and has spacers having a combined width greater than a width of the test mold plate.

Abstract: A magnetic coupling for an injection molding apparatus, such as a hot half or hot runner, includes a first magnetic part for connection to an actuator, a valve pin plate, or the like and a movable second magnetic part for connection to a valve pin. The first magnetic part and the second magnetic part are coupled by a magnetic force. The first magnetic part can be part of the actuator. The second magnetic part can be part of the valve pin. A valve pin plate can be provided for a plurality of valve pins.

Abstract: Disclosed is a hot runner (100), including: a first plate (102) having a first-plate alloy; a second plate (104) having a second-plate alloy, the second plate (104) being coupled with the first plate (102), and the second plate (104) and the first plate (102) defining a manifold pocket (213); a manifold (224) being supportively received in the manifold pocket (213), and the manifold (224) having a drop (225); a nozzle assembly (400) being supportively received by the second plate (104), the nozzle assembly (400) connecting with the drop (225) of the manifold (224); and a nozzle-support structure (101), including: a first load-bearing insert (207) contacting the second plate (104), the first load-bearing insert (207) contacting the nozzle assembly (400), the first load-bearing insert (207) having a first insert material being stronger than the second-plate alloy of the second plate (104), the first insert material being strong enough to withstand a first high-point load (150) to be transmitted from the nozzle

Abstract: A crossover nozzle system for transferring molten plastic from an inlet at the center of the stationary platen of an injection machine to the main manifold of the molding chambers of the stack molds of the injection molding machine. The crossover nozzle system incorporates liquid cooling to create a high viscosity viscous seal from molten plastic at a parting line between moveable components. Accordingly, no other seal is required between the components.

Abstract: An injection molding machine is provided that allows the use of two conventional molds. The injection molding machine utilizes an injection material distributing platen having a first mold mounting surface and a second opposing mold mounting surface. A conventional mold may be mounted to each mold mounting surface. To provide injection material to the molds, an injection unit may provide injection material to an internal passageway within the distributing platen between the first and second mold mounting surfaces. The injection material may be selectively distributed to molds attached in the first and second mold mounting surfaces. To reduce the overall size of the machine, the injection unit may be a vertical injection unit that is disposed above the distributing platen.

Abstract: Method and apparatus for controlling the delivery of polymer material in a sequential injection molding process. In one embodiment, the method provides: delivering a first shot of a first material simultaneously to a plurality of mold cavities; independently sensing for each cavity a property that is indicative of a volume or flow of material that is delivered to the corresponding cavity during the step of delivering the first shot; independently stopping the step of delivering the first shot to one or more cavities according to a program that uses as a variable a signal indicative of the property sensed for the corresponding cavity during delivery of the first shot; and delivering a second shot of a second material simultaneously to the cavities subsequent to the step of stopping the step of delivering the first shot.

Abstract: A system for molding elastomeric figures includes a dispenser having first and second reservoirs containing co-reactive fluids. A mold is affixed to the dispenser and has a cavity in fluid communication with the reservoirs. A mixer is disposed between the reservoirs and cavity. A plunger forces the fluids from the reservoirs and through the mixer, where the fluids are homogeneously combined, and into the cavity. The combined fluids congeal within the cavity to form an elastomeric figure.

Abstract: A mold includes a parting surface, runners, mold cavities, gates and primary air-venting grooves defined in the parting surface. The gates connect the respective runners to the corresponding mold cavities. Each primary air-venting groove includes an air-receiving groove portion and an air-venting groove portion in communication with the air-receiving groove portion. The air-receiving groove portion communicates with the gate and surrounds the corresponding mold cavity. The air-venting groove portion extends to and terminates at a corresponding edge of the parting surface.

Abstract: An injection mold device includes: a stationary mold plate including a stationary mold body, a protrusion, and a sprue having a sprue open end; a movable mold plate formed with a first forming part; and a stripper plate including a stripper mold body, a recess, a second forming part, and a plurality of runners. When the stationary mold plate, the movable mold plate, and the stripper plate are assembled, the protrusion is received within the recess such that the sprue open end is in fluid communication with the runners, and the first forming part and the second forming part form a mold cavity.

Abstract: An injection molding nozzle comprises a material feed pipe subtending a flow duct communicating flow-wise with at least one nozzle tip. Each tip points transversely to axial direction A of the nozzle and is held by a manifold. The manifold is pluggable/insertable into the material feed pipe and includes a neck and a base. A manifold duct system is subtended in the manifold. A main duct extending the flow duct is in the neck and the base comprises a deflection site and at least one manifold duct. The manifold duct runs radially to axial direction A. The nozzle tip is affixed in a seating unit fitted with a central recess. Radial boreholes running transversely to axial direction A fit into the seating unit and receive plugged-in nozzle tips. The central recess receives the base, the nozzle tip being secured by the base to and in the seating unit.

Abstract: A manifold of an injection molding apparatus includes a primary melt channel and secondary melt channels extending from the primary melt channel. A shear rod is disposed at the junction between the primary and secondary melt channels. The shear rod extends from the junction into the primary melt channel and is disposed substantially parallel to the longitudinal axis of the primary melt channel.

Abstract: An injection molding apparatus includes a manifold defining a manifold channel for receiving pressurized molding material from an upstream source and a nozzle defining a nozzle channel in communication with the manifold channel to define a flow channel. The nozzle is associated with a mold gate of a mold cavity and delivers molding material to the mold gate. A vane, such as that of an impeller or screw, is rotatably disposed in the flow channel upstream of a mold gate. A motor is coupled to the vane and rotates the vane in either direction. Rotation of the impeller or screw can be automatically adjusted by a controller and a sensor that measures pressure, temperature, or other property of the molding material.

Abstract: Methods and apparatus to evenly clamp semiconductor substrates in a transfer mold process are disclosed. A disclosed split mold base includes a first plate having a first surface, a second plate having a second surface opposite the first surface, and a plurality of springs that are disposed between the first and second plates to distribute a clamping pressure applied by a mold press.

Abstract: A venting device for venting a cavity of an injection mold via a venting opening of the injection mold which cavity can be filled with an injection molding material is provided. The venting device comprising a housing which has a through-opening and is designed and intended for an arrangement on an injection mold in such a way that air which is present in the cavity and which escapes from a venting opening of the injection mold when injection molding material is introduced into the cavity can exhaust through the through-opening of the housing into an exterior space surrounding the injection mold. A valve pin extending longitudinally along a direction of extent and being mounted in the housing movably along its direction of extent. The valve pin is designed for being moved from a venting position, in the direction of the cavity into a first cleaning position.

Abstract: A hot runner system for an injection molding machine capable of increasing durability of the nozzle includes a manifold having a resin injecting hole extending therethrough in its inner portion, a nozzle having a piston guide bushing formed at its upper end inserted into the nozzle seated groove of the manifold, a manifold guide bushing for surrounding and threadedly engaging with an upper portion of the piston guide bushing of the nozzle, and a fastening bushing for receiving an outer surface of the manifold guide bushing and threadedly engaging with an inner circumferential surface defining the nozzle seated groove of the manifold so that the manifold guide bushing is fastened by the fastening bushing to the inner circumferential surface defining the nozzle seated groove of the manifold.

Abstract: An injection mold for insert molding includes a stationary plate, a first core and a second core. The stationary plate defines an upper surface and a side surface perpendicular to the upper surface. The upper surface has a slot at a middle portion thereof. The slot extends perpendicular to the side surface and reaches the side surface. The first core is received in the slot of the stationary plate and defines a holding element on a top surface thereof for securing an insert. The second core is closed with the first core to form a mold cavity, with the insert extending into the mold cavity. The first core is capable of being taken off from the slot of the stationary plate when the first core and the second core are detached from each other.

Abstract: An injection molding machine includes supporting plates, molds coupled to the supporting plates, and a coupling guide device to guide the coupling of the molds and the supporting plates. The coupling guide device includes a first coupling guide recess and a first coupling guide protrusion provided at center portions of the molds and the supporting plates so as to be coupled to each other, and a second coupling guide recess and a second coupling guide protrusion provided at the molds and the supporting plates, spaced apart from the first coupling guide recess and the first coupling guide protrusion, so as to be coupled to each other. The second coupling guide recess is formed lengthwise in a direction toward a periphery from the center portions of the molds and the supporting plates.

Abstract: The present disclosure relates to an injection molding device with a first mold half and a second mold half, arranged movably with respect to said first half, and a central mold half arranged between said first and second halves and rotatable about an axis of rotation. Arranged to the side of the central mold half is a further processing device.

Abstract: Method and apparatus for sequentially delivering multiple shots of polymer material to a plurality of mold cavities to form multilayer articles. A first shot of greater than 50% of the total article weight of a first polymer material is simultaneously delivered to a plurality of mold cavities using, at each cavity, a chamber of predetermined volume that is prefilled with the first polymer material. A second shot of no greater than 10% of the total article weight of a second material is simultaneously delivered to all of the cavities beginning subsequent to the step of delivering the start of the first shot delivery step. The second shot of second material is delivered through a manifold channel that fluidly communicates with each cavity, and is injected to all cavities under pressure exerted by a source of the second material that is common to all of the plurality of cavities.

Abstract: Apparatus for controlling the rate of flow of fluid material from an injection molding machine to a mold cavity, the apparatus comprising: a manifold receiving the injected fluid material and having a delivery channel that delivers the fluid material to the mold cavity; a bushing or insert or plug mounted in an aperture in the manifold having a rate flow control channel communicating with the delivery channel of the manifold; a pin having a flow control member; the pin being adapted for back and forth axial movement within the rate flow control channel wherein a surface of the flow control member is controllably engageable or sealable against an interior surface area portion of the rate flow control channel of the bushing or insert or plug.

Abstract: A hot runner system including a shoot pot system for transferring melt from a single shooting pot to multiple nozzles. Melt is fed from a source of melt into the cavity through the multiple nozzles, and a valve isolates melt in the cavity from melt in the source. A plunger within the cavity is driven forward to inject melt in the cavity into a mold cavity at high pressure without significantly increasing the pressure of melt in the source. The plunger optionally functions as both the plunger and the valve by opening and closing communication between the cavity and the manifold as it is rotated.

Abstract: A multi-material injection molding machine includes stationary and moving platens holding cores and first and second injection units for delivering first and second molding materials. The moving platen is slidable towards and away from the stationary platen. Further provided is a rotational distribution unit movable between the stationary platen and the moving platen and defining first cavities on one side and second cavities on an opposite side. The first cavities are for mating with cores to define first mold cavities and the second cavities are for mating with cores to define second mold cavities. Also provided are a rotational actuator for rotating the rotational distribution unit and a molding material delivery apparatus for delivering one or more of the first molding material to the first cavities and the second molding material to the second cavities.

Abstract: An injection apparatus for injecting hot plastics material into an injection mold has an actuator section forming an actuator chamber and a nozzle member connected to the actuator section and extending to a nozzle tip having an injection aperture. The nozzle member includes an injection passage system for conducting the hot plastics material to the injection aperture. An elongate valve pin extends through a guide passage in the nozzle member and is movable between open and closed positions. A piston is connected to this pin, is slidably mounted in the actuator chamber and moves the valve pin between the open and closed positions. The piston and actuator section are machined to close tolerances so as to form a micro-gap between the wall of the piston and the wall of the chamber thereby avoiding fluid seals. The actuator is able to operate at temperatures ranging between 200 and 400° C.

Abstract: A mold assembly includes an upper mold cavity, a base plate, and a flow element. The upper mold cavity defines a primary runner and a plurality of sub-runners on a top surface in communication with the upper mold cavity. A gate is defined in the primary runner for injecting liquefied plastic into the upper mold cavity. The base plate defines an outlet thereon corresponding to the gate for outputting the liquefied plastic. The upper mold cavity and the base plate corporately form a closed cavity therebetween. The flow element is received in the closed cavity and movable between a first position and a second position. In the first position, the flow element is engaged with the primary runner and plurality of sub-runners. In the second position, the flow element is separated with the primary runner and plurality of sub-runners.

Abstract: A lens mold comprises a first pressing portion, a second pressing portion, and a shaping portion disposed between the two, which comprises an upper slide and a lower slide. The upper slide and the lower slide are connected to the second pressing portion, and can slide along each other. A mold cavity in fluidic communication with a flow path and the inlet such that the lens material flows from the inlet to the mold cavity along the flow path to form a shaped lens. After the lens is formed, the upper slide and the lower slide away from each other separately, where a part of the shaped lens is remains in a recess defined in the second pressing portion, to help release the shaped lens from the mold.

Abstract: A mold structure includes a first base which has a first indention area, a first main runner spaced from the first indention area, and a plurality of first subordinate runners communicating with the first indention area and the first main runner, and a second base which has a second indention area corresponding to the first indention area, a second main runner corresponding to the first main runner, and a plurality of second subordinate runners corresponding to the first subordinate runners and communicating with the second indention area and the second main runner. A plurality of first mold cores and corresponding second mold cores is mounted to the first indention area and the second indention area, respectively. The second mold core is engaged with the first mold core to form a mold chamber communicating with a chamber formed by the first indention area and the second indention area.

Abstract: A mold-tool system (100), comprising: a melt splitting device (102) being configured to interact with a melt distribution device (105), the melt splitting device (102) having: a single inlet (106); multiple outlets (108) being set apart from the single inlet (106), the multiple outlets (108) being configured for fluid communication with the melt distribution device (105); and uninterrupted melt channels (110) extending from the single inlet (106) and the multiple outlets (108).

Abstract: According to embodiments of the present invention, there is provided an apparatus for controlling melt flow through a portion of the melt distribution network. A flow control device is provided. The flow control device comprises a body defining: a mixer configured to be positioned in a conduit for providing a path of flow for melt such that the mixer traverses substantially the whole cross-section of the path of flow; a temperature control portion associated with the mixer for actively controlling temperature of the mixer.

Abstract: This mould is of the type including a moulding cavity (10), and at least one panel (16, 18, 20) which is for separating the cavity into at least two moulding compartments (24, 26) and which is movable, between a position for separating the two compartments (24, 26) and a rest position, through an opening (22) which is provided in a wall (12) of the cavity (10). The mould further includes at least one shutter (32, 34) which is movable between an open position, in which the shutter (32, 34) is disengaged from the opening (22), and a closed position, in which the shutter (32, 34) closes at least a region of the opening (22).

Abstract: An actuated part, such as a valve pin plate or actuator piston, is movable in forward and rearward directions. A coupling part is located rearward of the actuated part and held in position by magnetic attraction between the coupling part and the actuated part. A valve pin is coupled to the coupling part. The valve pin extends in the forward direction for opening and closing a mold gate. When a stopping force applied to the valve pin is greater than a force of the magnetic attraction between the coupling part and the actuated part, the actuated part moves away from the coupling part in the forward direction, thereby reducing the stopping force on the valve pin.

Abstract: A crossover nozzle system for transferring molten plastic from an inlet at the center of the stationary platen of an injection machine to the main manifold of the molding chambers of the stack molds of the injection molding machine. The crossover nozzle system incorporates liquid cooling to create a high viscosity viscous seal from molten plastic at a parting line between moveable components. Accordingly, no other seal is required between the components.

Abstract: An injection molding hot runner system of modular construction adapted for rapid removal and replacement during required maintenance. The system includes at least one hot runner module adapted for mounting at a support surface. The hot runner module includes one or more injection nozzles adapted for fluid communication with a supply of molten material and an arrangement of acceptance openings adapted to engage mounting projection elements extending away from the support surface.

Abstract: A mold for use in an injection molding process includes a molding plate, a molding block and a plurality of mold cores. The molding plate defines a receiving cavity, a plurality of through holes and a plurality of elongate gates. The through holes surround the receiving cavity, and each of the elongate gates communicates with the receiving cavity and the corresponding through hole. The molding block is detectably received in the receiving cavity. The molding block defines a cold slug well and a plurality of runners. Each runner communicates with the cold slug well and the corresponding elongate gate. Each mold core is received in the corresponding through hole.

Abstract: According to embodiments of the present invention, there is provided an air dehumidifying sub-system and a method for use in a molding system. For example, the air source device for use with a post-mold treatment device for treating a molded article, the air source device comprising: an air inlet and a refrigerating unit operatively coupled to the air inlet, the refrigerating unit and the air inlet arranged such that air is forced between the air inlet and the refrigerating unit for cooling the air; an air outlet coupled to the refrigerating unit for connecting the refrigerating unit to an air management device of the post-mold treatment device, the air management device configured to direct, in use, cooled air onto a portion of the molded article being treated.

Abstract: An upstream runner component defines an upstream channel for flow of molding material. A downstream runner component defines a downstream channel for flow of molding material. A wedge seal is disposed in a converging gap defined surface of the upstream runner component and the downstream runner component. The wedge seal defines a seal channel connecting the upstream channel to the downstream channel. Pressure of molding material acting on an inside surface of the wedge seal defining the seal channel pushes the wedge seal into sealing contact with the surfaces of the upstream runner component and the downstream runner component defining the converging gap.

Abstract: Provided is an injection mold which can reduce the amount of resin that is separated from injection-molded parts and then thrown away. The injection mold includes for an embodiment an extension cylinder coupled to an upper clamp plate and having a nozzle at an end thereof; a nozzle positioner disposed under the nozzle, the nozzle positioner having a nozzle insertion groove adapted to receive the nozzle; a gate-lock-pin holder disposed under the extension cylinder and the nozzle positioner, comprising a gate lock pin which has a first end coupled to a gate molded part and a second end coupled to the gate-lock-pin holder, and adapted to separate the gate molded part from an injection-molded part; a gate stripper plate disposed under the gate-lock-pin holder and adapted to separate the gate molded part from the nozzle; and a cavity plate and a core plate disposed under the gate stripper plate and having a cavity which is shaped like the injection-molded part.

Abstract: Disclosed, amongst other things, is a melt distribution apparatus of a hot runner and a related method for balancing melt flow to a plurality of drops. The melt distribution apparatus includes a plurality of chokes with each choke of the plurality of chokes being associated with a corresponding one of a drop of a plurality of drops. Each choke of the plurality of chokes being configured to contribute, during an injection of a molding material therethrough, a choke melt-pressure loss such that the plurality of chokes contribute an aggregate choke melt-pressure loss that is generally between 10% and 75% of an aggregate hot runner melt-pressure loss.

Abstract: The invention provides a replaceable bushing in the base of a nozzle of a hot runner assembly and provides access through a manifold and a rear plate for removal and replacement of the bushing without having to disassemble the hot runner assembly. According to one embodiment of the invention, an actuator access port is provided for removing the valve pin actuator and a bushing access port is provided for accessing the bushing upon removal of the valve pin actuator, both of which may be removed from a second or rear plate of the injection molding assembly.

Abstract: A molding arrangement is provided for multi-level stack molds wherein mold sets and runners are made up of modular sections interchangeable individually or as larger assemblies for exchanging molds for one part for those for different parts or exchanging runners between hot tip and valve gate designs to accommodate different molding arrangements. The arrangement has discrete melt paths for each mold level, at least some of which extend around rather than through the mold levels and which incorporate readily separable connectors. This enables one set of molds and possibly as well the runners for one mold level to be interchanged without interfering with the mold and runner arrangement for an adjacent level.

Abstract: Disclosed, amongst other things, is: a continuous molding machine, a cam of the continuous molding machine, a post-molding device of the continuous molding machine, a molded article handling device, amongst other things.

Abstract: An injection mold has a plurality of cavities and a runner system for injecting material into the cavities. The runner system includes a main-runner and a sub-runner. The sub-runner interconnects the main-runner and the cavities. The sub-runner includes a first runner and a pair of second runners. The first runner connects the main-runner, and the second runners respectively connects ends of the first runner. A buffer rejoin is formed around a joint of the first runner and each second runner for mixing material when the material flows from the first runner into the second runners to make the material have a symmetric speed distribution in the second runners.

Abstract: The present invention relates to injection molding apparatus (10) comprising a main manifold plate (16) fitted with at least several flow ducts (18), further at least two auxiliary manifold plates (22) fitted with several flow ducts (24), said auxiliary manifold plates being configured above and underneath the main manifold plate (16), the flow ducts (24) of the particular auxiliary manifold plates (22) fluidly communicating with those of the main manifold plate (16), further with needle valve nozzles (26) configured in mutually opposite and back-to-back manner and fluidly communicating with the flow ducts (24) of the auxiliary manifold plates (22), where the needle valve nozzles (26) each comprise one valve needle (28) to open/close a nozzle outlet aperture, and further pneumatically or hydraulically actuated plunger units (units (30; 71) driving the valve needles (28), said plunger units being received in at least one separate receiving plate (32; 70) configured between the auxiliary manifold plates (22), a

Abstract: Apparatus and methods for a preform mold system include multiple preform core side modules having preform mold cores, a core side clamp plate connectable to a moving platen of an injection mold machine and operable to receive the preform core modules, multiple preform cavity side modules having preform mold cavities, each of the preform cavity side modules operable to matingly engage a respective core side module to form multiple preform molds having a respective preform design, and multiple ejector housing assemblies for connecting the core side modules to an ejector platen of the mold machine, each of the ejector housing assemblies corresponding to a respective core side module.