Abstract: A patty-forming machine includes a food supply system where the drive mechanism for feed screws use integrated and compact motor and gearbox assemblies. The feed screws have heavy wall thickness flights and the feed screw shafts are journaled through modular bearing assemblies. A conveyor that forms the bottom of the hopper uses a sealed drum motor housed in the drive roller to drive the conveyor. A food supply system includes independent sensing means for indicating whenever the moldable food material accumulated at one end of the hopper exceeds a given level.

Abstract: An automated removal and insertion machine for mold drawers operable with a molding machine is described. The machine includes a frame, a plurality of actuators mounted within the frame, a plurality of encoders, a plurality of electromagnetic effectors, and a controller. The actuators are operable in a substantially horizontal direction for removal and insertion of molds with respect to the molding machine, and movable within the frame in a substantially vertical direction. At least one of the encoders is operably attached to each of the actuators for providing data indicative of a position of the respective said actuators. At least one electromagnetic effector is attached to a terminal end of each of the actuators for engagement with a respective mold. The controller is operable to control movement of the actuators in the substantially horizontal direction and further operable for controlling power applied to the electromagnetic effectors.

Abstract: A modular molding assembly comprises an input module for loading electronic devices for molding, a press station including one or more molding presses for molding the electronic devices, an output module for offloading molded electronic devices after they have been molded and a carrier that is movable at least between the input module and the press station and/or the press station and the output module. The carrier has an adaptor located thereon for detachably mounting a first attachment or a second attachment which is operative to perform a function of transporting the electronic devices and/or introducing a molding compound to the press station for conducting molding. The first and second attachments each has a corresponding mounting device for detachably mounting the first or second attachment onto the adapter and the first attachment has a different function from the second attachment.

Abstract: Apparatus and methods of modify a reciprocating mold plate patty-forming machine such that a mold plate for a smaller machine can be fit into a larger forming machine. A tooling set for the modification includes a dedicated drawbar configured to mount the smaller mold plate and modified wider spacers to closely meet the smaller mold plate within the forming machine. An adapter system selectively mounts either a first mold plate having a first set of keyholes or a second mold plate having a second set of keyholes, different than the first set of keyholes to a single reciprocating mold plate patty-forming machine. The adapter system can include first and second sets of adapters and a drawbar having provision for connection at opposite ends to driving rods of the drive system.

Abstract: A press punch for pressing a powder includes a generally cylindrical metallic body and a polyurethane layer disposed around the metallic body. The metallic body has a nominal outside diameter and a generally flat bottom face. The polyurethane layer is disposed around the metallic body such that a bottom of the polyurethane layer is flush with the generally flat bottom face of the metallic body and an outside diameter of the polyurethane layer is substantially the same as the nominal outside diameter of the metallic body. In another embodiment, the outside diameter of the polyurethane layer is greater than the nominal outside diameter of the metallic body.

Abstract: A device for mounting a mould in a machine (1) that comprises: a mould (2) composed of two half-moulds (2a, 2b), each of which comprises an active filtering portion (2ar, 2br) and a rigid structural portion (5, 6); a mounting platen (3, 4) for each half-mould (2a, 2b), movable towards and away from each other; the service plate (5) of the first half-mould (2a) is rigidly connected, in use, between the active portion (2ar) and the respective platen (3); the device comprises reference and quick connect means (7, 8) located in a region above the center of gravity of the first half-mould (2a), and acting between the platen (3) and the service plate (5) in order to fasten the first half-mould (2a) in a predetermined, hanging position correlated between the platen (3) and the plate (5).

Abstract: A cable guide system and method are disclosed for a mold forming and extruding machine. The machine has a pair of spaced apart vertical members. The cable guide system includes a support shaft secured to the pair of vertical members. The support shaft retains a first stop member, a tensioning device, a spool loaded with a flexible reinforcement cable, and a second stop member. The spool cooperates with the tensioning device to prevent the cable from prematurely unraveling. The cable guide system further includes a guide member located below and forward of the spool and in horizontal alignment with a plunger. The guide member is capable of changing the direction of the flexible reinforcement cable as it is unwound from the spool. The plunger is capable of extruding a moldable substance from the machine while allowing the flexible reinforcement cable to pass through an aperture formed therein.

Abstract: A replaceable double-plate-injection mold comprises a movable side mold plate having one side formed with a male mold core; a movable side assembly plate being connected to another side of the movable side mold plate; a fixed side mold plate having one side being formed with a female mold core; and a fixed side assembly plate having one side installed with a plurality of track supporting rods for passing through the fixed side mold plate, the movable side mold plate, and the movable side assembly plate. One side of the fixed side assembly plate is recessed for assembling a supporting plate of the male mold core; and another side thereof is corresponding to the fixed side assembly plate. A center of the movable side mold plate is formed with a receiving portion.

Abstract: Apparatus and method for making a plurality of different types of suture packages employ a mold with first and second opposing mold parts partially defining a mold cavity, at least one of the opposing mold parts has an opening therein communicating with the mold cavity. An insert is removeably inserted into the opening, to complete the mold cavity in a form suitable for molding a first type of suture package. An alternative insert is interchangeable with the first insert for completing the mold cavity in a form suitable for molding a second type of suture package. To make different suture packages, the mold is initially configured and used with one of the inserts to thereby make one type of suture package. The first insert is then replaced with the second, changing the mold cavity to form another type of suture package.

Abstract: Apparatus and method for making a plurality of different types of suture packages employ a mold with first and second opposing mold parts partially defining a mold cavity, at least one of the opposing mold parts has an opening therein communicating with the mold cavity. An insert is removeably inserted into the opening, to complete the mold cavity in a form suitable for molding a first type of suture package. An alternative insert is interchangeable with the first insert for completing the mold cavity in a form suitable for molding a second type of suture package. To make different suture packages, the mold is initially configured and used with one of the inserts to thereby make one type of suture package. The first insert is then replaced with the second, changing the mold cavity to form another type of suture package.

Abstract: According to embodiments of the present invention, there is provided a system, a method and an apparatus for configuring an end of arm tool within a molding environment. The end of arm tool comprises a base structure attachable, in use, to an actuator of the molding system, the base structure comprising a mounting structure interface; a mounting structure configured to be releasably accepted, in use, within the mounting structure interface; the mounting structure for receiving, in use, a part receptacle; the base structure comprising a service connecting interface configured to connect, in use, a service to the part receptacle via the mounting structure.

Abstract: A method and device for heating at least one blank which is used to produce a container, such as a bottle, from a thermoplastic material, particularly PET, by means of blow molding or stretch blow molding. The blank is disposed between two opposing lateral walls which are positioned at a distance from one another. One of the walls supports several radiation sources which are disposed one above the other opposite the body of the blank. The space between the two lateral walls is closed at least partially beyond and close to the base of the blank. At least part of the radiation emitted beyond the base of the blank is reflected in the direction of the body of the blank. In this way, losses due to lost radiation are limited.

Abstract: A rotary injection molding apparatus and method for manufacturing products containing elastomeric material within multi-section single cavity molds. The apparatus includes a modular frame supporting an injection molding operation station having an injector assembly with a pressure sensitive nozzle assembly. The injector assembly is engaged with an extruder assembly at a check valve assembly. A mold servicer assembly is provided for assembly and disassembly of multi-section single cavity molds. A robotic arm assembly is supported on the modular frame and positioned for inserting and removing products or product components from disassembled molds. Finally; a rotating table is provided on the frame which has a plurality of work station positions supporting clamping assemblies for clamping single cavity molds around the periphery of the rotating table.

Abstract: An improved stereolithography apparatus for forming three-dimensional objects using multiple chambered resin vats and a quick disconnect mounting system to permit concurrent use of multiple photopolymer build materials and easy change over of resin vats is disclosed. The apparatus permits easy change over from multiple chambered vat use to single chamber vat use and vice versa or change over between multiple chambered vats.

Abstract: An automated removal and insertion machine for mold drawers operable with a molding machine is described. The machine includes a frame, a plurality of actuators mounted within the frame, a plurality of encoders, a plurality of electromagnetic effectors, and a controller. The actuators are operable in a substantially horizontal direction for removal and insertion of molds with respect to the molding machine, and movable within the frame in a substantially vertical direction. At least one of the encoders is operably attached to each of the actuators for providing data indicative of a position of the respective said actuators. At least one electromagnetic effector is attached to a terminal end of each of the actuators for engagement with a respective mold. The controller is operable to control movement of the actuators in the substantially horizontal direction and further operable for controlling power applied to the electromagnetic effectors.

Abstract: Principal components of injection molding apparatus include a U-frame, a carrier plate remotely affixable to the U-frame, preferably two cavity blocks remotely affixable to the carrier plate, a corresponding pair of core blocks, and a hot runner assembly remotely affixable to rear faces of the core blocks. These components are placed in a hydraulic press. In a molding operation, the U-frame, carrier plate and cavity blocks move as a unit relative to the hot runner assembly and the core blocks affixed thereto. To quickly change out one or both block pairs, a subassembly comprising the carrier plate and all core and cavity blocks is remotely released from the U-frame and the hot runner assembly and is removed as a unit. Face clamps in the front face of the carrier plate, the rear face of the cavity blocks, the rear face of the core blocks and the front face of the cavity blocks speed the changeout process and obviate potential damage to the molding geometry.

Abstract: A fine channel device containing a fine channel substrate that includes a fine channel for channeling fluids, and through holes, wherein the fine channel and the through holes are interconnected via an interconnection portion, as well as a mold that is equipped with pins forming the through holes in the fine channel substrate, wherein the positions of the pins and the number pins be altered as desired.

Abstract: A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator using the device needs merely to remove a spent cartridge and replace it with a fresh cartridge to continue solid imaging virtually uninterrupted. The apparatus also includes the capability of withdrawing and inserting an imager without the operator having to perform a separate alignment step. A brush attached to the transport film and forming part of the cartridge provides for intra-layer removal of excess uncured build material. If desired, the apparatus can produce a fully reacted build. A high intensity UV source cures the build between layers. An injection molded build pad is designed to hold a build in an inverted position for improving the build.

Abstract: Principal components of injection molding apparatus include a U-frame, a carrier plate remotely affixable to the U-frame, preferably two cavity blocks remotely affixable to the carrier plate, a corresponding pair of core blocks, and a hot runner assembly remotely affixable to rear faces of the core blocks. These components are placed in a hydraulic press. In a molding operation, the U-frame, carrier plate and cavity blocks move as a unit relative to the hot runner assembly and the core blocks affixed thereto. To quickly change out one or both block pairs, a subassembly comprising the carrier plate and all core and cavity blocks is remotely released from the U-frame and the hot runner assembly and is removed as a unit. Face clamps in the front face of the carrier plate, the rear face of the cavity blocks, the rear face of the core blocks and the front face of the cavity blocks speed the changeout process and obviate potential damage to the molding geometry.

Abstract: A stereolithography apparatus having a resin vat with resupply containers in one-way flow communication and a leveling container in two-way flow communication, an automatic offload cart to remove and replace build support platforms, an elevator assembly for supporting and releasably retaining a build platform removably attached to the stereolithography apparatus frame such that elevator forks supporting the build platform can be released into the vat and removed from the stereolithography apparatus with the vat, and a recoater assembly and recoater blade for mapping the resin surface in the vat and applying a fresh coating of resin to a cross-section being built in the vat.

Abstract: According to embodiments of the present invention, there are provided an auxiliary carriage combined with an auxiliary carriage actuator and a multi-stack molding machine incorporating same. For example, an auxiliary carriage for use in a multi-level molding machine is disclosed. The auxiliary carriage comprises a support structure configured to accept, in use, an auxiliary mold assembly; an auxiliary carriage actuator configured to be operatively coupled, in use, to the support structure, to a main carriage of the multi-level molding machine and to one of a fixed platen and a movable platen to actuate, in use, the auxiliary carriage in unison with the main carriage.

Abstract: A mold kit and mold which provides for renewal of damaged or worn molds. The mold kit employs spacers to make up for subtractive reconditioning of the mold. A method for renewing the mold is also disclosed.

Abstract: Apparatus for producing an object by sequentially forming thin layers of a construction material one on top of the other responsive to data defining the object, the apparatus comprising: a plurality of printing heads each having a surface formed with a plurality of output orifices and controllable to dispense the construction material through each orifice independently of the other orifices; a shuttle to which the printing heads are mounted; a support surface; and a controller adapted to control the shuttle to move back and forth over the support surface and as the shuttle moves to control the printing heads to dispense the construction material through each of their respective orifices responsive to the data to form a first layer on the support surface and thereafter, sequentially the other layers; wherein each printing head is dismountable from the shuttle and replaceable independently of the other printing heads.

Abstract: A mold can be receive mold inserts or submolds for customized configuration of the mold. In addition, the submolds can be specially configured for use. The same submold can be changed for a different use. Also, the submold can be reconfigured for use after the submold has been reconditioned. Moreover, the submolds make efficient use of materials within the mold by having many parts that are capable of reuse.

Abstract: The invention relates to a compound storage unit (1) for a molding process, in particular for producing lipsticks comprising a container (2) for moldable compounds, wherein said container consists of a housing (3), a heating device (4) which heats the moldable compounds and disposed in the housing (3) of the container (2), a mixing device (5) for mixing the heated compounds in the container (2), a dispenser device (6) for extracting the compounds from the container (2), a fixing device (7) for removably fixing the container (2)to a molding device (20) for molding the compounds and a corresponding molding device 20) for molding compounds by means of a mould, a corresponding molding system and a transport carriage (30). The aim of the invention is to develop a storage unit and a molding device which make it possible to substantially reduce the standstill time of the molding device for exchanging the moldable compound.

Abstract: Disclosed are a molded article picker for a post-mold device and a related method for the use of the molded article picker for handling a molded article. The molded article picker includes a floating element being configured to be movable between an extended position and a retracted position and biased in the extended position. Furthermore, the molded article picker comprises a pressure structure extending through the floating element. The floating element is cooperable with the molded article to define a substantially enclosed volume including the pressure structure. The pressure structure is configured such that by evacuating the substantially enclosed volume the molded article is sealed to the floating element and the floating element is drawn into the retracted position, thereby transferring the molded article to the molded article picker.

Abstract: A device for calibrating an extruder plastic profile having a calibration unit for the profiled strand coming-out of a molding profile nozzle is described, the calibration unit having a molding body (1) enclosing the profiled strand, having calibration surfaces (5), which press against the profiled strand, and vacuum slots (6), which run in the calibration surfaces (5) transversely to the passage direction of the profiled strand (2) and are connectable to a partial vacuum source. In order to provide advantageous construction conditions, it is suggested that at least individual vacuum slots (6) penetrate the molding body (1) transversely to the passage direction (2) and be closed on outside of the molding body (1) using a removable cover (12).

Abstract: The invention relates to a mold for the production of molded parts on a jolting table, the mold having a mold frame which carries a mold insert in which recesses defining the molded parts are formed, the mold insert being surrounded by a clearance space toward the mold frame, this clearance space being at least partly filled with damping means which keeps the mold frame and mold insert at a distance apart in a non-contact manner. In this case, at least one locking element passes through the clearance space, the locking element being mounted with play in at least one of the mold frame and mold insert.

Abstract: The present invention is a hot runner nozzle design consisting of a nozzle core with slotted flange seated inside a slotted nozzle housing, a nozzle tip seated on the nozzle core, and a nozzle tip seal seated on the nozzle tip. Furthermore, the present invention is a quick assembly hot runner nozzle design. The present nozzle design provides for the easy installation and removal of the nozzle by means of turning and sliding the nozzle. This provides for easy installation or removal of the nozzle when servicing the mold in the machine and without the complete disassembly of the hot runner mold. The seal located on the nozzle tip seals the tip area to avoid plastic leakage. Positioning the seal closer to the gate area also contributes in increased nozzle tip mass thus resulting in a better heat distribution profile along the nozzle tip, and especially in the area closer to the gate.

Abstract: A mold of the present invention is capable of modular configuration and reconfiguration for producing molded objects. Many of the same mold components are reusable in the mold to increase the flexibility of the mold and reduce expense associated with molding.

Abstract: Sanitary wares are pressure-cast on a single mold machine comprising a bed and two platens associated with the bed, each one supporting a respective mold half; one of the two platens is translatable along the bed in a longitudinal direction, whilst the other incorporates a tilting platen carrying the respective mold half and is rotatable about a horizontal axis extending perpendicular to the longitudinal direction; the accessibility to the mold halves and to the casting are improved and therefore the operations of demolding the green wares and transferring them to successive stages of manufacture are much facilitated, as also is the procedure for changing the mold.

Abstract: A fixed mold (10) has engaging pins (17) projecting towards a movable mold (20). Each engaging pin (17) includes a shaft (17A) and a large-diameter portion (17C) formed at the leading end of the shaft (17A). The large-diameter portions (17C) of the engaging pins (17) interfere with the bottom surfaces of recesses (53) of an ejector plate (50) in the process of separating the movable mold (20). Thus, the ejector plate (50) is moved forward relative to the movable mold (20) and leading ends of ejector pins (90) project from the movable mold (20).

Abstract: A treatment chamber for heating and pressing workpieces and a heat insulating structure which covers the treatment chamber sideways and from above are provided within a high-pressure vessel. Below the treatment chamber are disposed a base heater for heating a pressure medium gas and a fan for supplying the pressure medium gas in a heated state into the treatment chamber and stirring the heated gas. The workpieces can be held on the heat insulating structure side, and the heat insulating structure and the workpieces can be taken out from the interior of the high-pressure vessel and can be conveyed together separately from a lower lid of the high-pressure vessel. A hot isostatic pressing apparatus is provided less expensively which can heat and press workpieces at a relatively low temperature of not higher than 600° C. Besides, it is possible to shorten the cycle time in HIP.

Abstract: A method is provided for fabricating a concrete slab in a substantially horizontal slip casting process method, concrete mix is fed into a mold through a delimited cross section moving progressively in the casting process so as to form a concrete product of a desired shape. Onto the surface of the casting bed (1) is placed a core (3, 9, 10, 11) capable of delimiting the cross section of the concrete product (5, 5?) so as to provide an opening or a provision for an opening in the bottom surface of the slab. A core is provided for obtaining an opening or a provision for an opening. The structure and/or material of the core is/are such that the core is capable of yielding in vertical direction. A core may also be a multipart core, the outer part of which becomes detached from the inner part of the core in conjunction with lifting off the concrete slab from the casting bed.

Abstract: Each inside surface of an injection molding press is attached to a static frame and ejector frame, respectively. The static frame is attached to a removable static mold assembly and the ejector frame is attached to a removable ejector frame assembly. The static mold assembly consists of a static cavity mold housing removably attached to a back plate. The ejector frame assembly consists of an ejector cavity mold housing removably attached to an ejector back plate assembly. The system only requires a change in the static and ejector cavity mold housing when changing molds for different plastic components. The static mold assembly and ejector mold assembly is attached by a yoke in a runner bar slot in a front portion of each respective static and ejector frame.

Abstract: A molding apparatus includes a first die having an exterior forming surface and a second die. When the apparatus is closed, the first and second dies define a cavity. A bulge projects from the exterior forming surface of the first die toward the second die. A core receiving section, or a recess, is formed in the second die. When forming a through hole in a molded product, a first core is provided in the core receiving section. The first core contacts the bulge when the molding apparatus is closed. When a groove is formed on an exterior surface of a molded product by the bulge of the exterior forming surface, a second core is provided in the core receiving position. The second core is separated from the exterior forming surface when the apparatus is closed.

Abstract: An improved apparatus for curing fibrous insulation material includes an oven, and a lower conveyor mounted to travel through the oven. The lower conveyor includes a plurality of flights having a support surface for supporting fibrous insulation material. An upper conveyor is mounted to travel through the oven and has a plurality of flights opposite the flights of the lower conveyor. Each flight of the upper conveyor includes a support surface. The upper and lower conveyors are arranged to press the fibrous insulation material between the respective support surfaces as the conveyors carry the fibrous insulation material through the oven. A plurality of molding members are configured to mold a shape into a surface of the fibrous insulation material, and are releasably retained on the flights by a plurality of retaining members. The retaining members are automatically releasable when the flights are moving, such that the releasing of the retaining members unlocks the molding members from the flights.

Abstract: Modular die or mold assemblies comprise a platform, and at least one die or mold unit which is releaseably connected to the platform. The invention permits rapid changing of molds or dies, especially in the manufacture of detergent bars, such as soap bars. Surface ornamentation such as logos can be imparted to the detergent bars either directly from the stamping surface of the dies, from the stamping surface of the dies through an elastomeric lining, or from the surface of the elastomeric lining; in the latter case the indicia is imparted by a mold used to prepare the lining. The modular molds may be used where it is desired to coat the dies with elastomer, particularly where logos are imparted to the elastomeric layer, and where it may be desirable to change the logos, e.g., by changing the modular mold units.

Abstract: A tool for injection molding of toothbrush bodies of two different plastics components comprises two mold parts which can be moved relative to each other and together constitute four groups of parallel mold cavities. One of the mold parts has a recess for each group of mold cavities. A mold insert fits into the recess. Partial cavities are formed in the mold inserts, which partial cavities each correspond to a head portion of a toothbrush body. A first plastics component is injected into a first pair of groups of the mold cavities and a second plastics component is injected into a second pair of groups of the mold cavities. The mold cavities of the first pair of groups are arranged on the one side and those of the second group are arranged on the other side of a rotatable carrier arm to which the mold inserts are fastened. The mold cavities are arranged in each group parallel to each other and so as to have the same orientation.

Abstract: The numbering machine comprises a series of cams (2) and a series of wheels (3), each cam (2) being connected with a wheel (3), so that the turning of a cam (2) signifies the turning of a wheel (3). The cams (2) have on their periphery nine projections (17) and a recess or hollow (18), while each wheel (3) has on its periphery the digits corresponding to the first nine numbers.

Abstract: A molding apparatus which is used in a continuous molding operation includes an endless looped track, track carriers which are moved around the track to and from a product shaping mold region and a transfer system for replacement of mold block members used in the apparatus. The transfer system, which operates without interrupting the molding operation includes transfer carriers controlled to move synchronized with the track carriers at a transfer location remote from the mold region and actuators which slide the mold block members between the track carriers and the transfer carriers at the transfer location when the transfer carriers are synchronized with the track carriers.

Abstract: A method for the automatic production of hollow bodies from mixed material, particularly concrete. A mold assembled from a mold core comprising a shaking device, an exterior mold and a bottom sprue is positioned in a molding area, non-solidified bulk material, particularly unset concrete, is uniformly filled into the mold space between the mold core and the exterior mold, the mixed material is compressed by shaking, an upper centering end is formed by pressing an upper sprue into the unset concrete column and thereafter the so formed, still soft molded body is removed from the mold by extraction and is transported to a drying area. At least some of the mold components are automatically assembled in an assembly area previous to a mold exchange and moved into the molding area as a pre-mounted assembly. Previous to a renewed mold exchange they are reassembled in the molding area to form an independent assembly to be transported off.

Abstract: There is provided an in-mold foam molding apparatus affording a significantly simpler design for a molding apparatus capable of molding molded portions comprising bead starting materials having different properties into a unitary molded article, and effectively preventing various drawbacks associated with the provision of partitioning members; and an in-mold foam molded article devoid of flash projecting from its visible surfaces.

Abstract: A method of maintaining a die system for the extrusion of polymer permits external cleaning and maintenance without shutting down the operation. Removable die inserts are located on one or both sides of the die opening section through which polymer is extruded. The inserts are spaced from the die opening section, by a very small distance, so as to avoid interfering with the opening section. When molten polymer accumulates and burns in areas surrounding the die opening section, the inserts can be removed and replaced without interrupting the extrusion of polymer.

Abstract: A filter-replacement cassette for an extruder. A housing (1) has at least one bore. The bores (2 & 3) extend above and below and at a right angle to the horizontally flowing plastic. A cartridge (4 or 5) that accommodates a replaceable filter (5) slides back and forth inside each bore. The object is to facilitate start-up operation. The cartridge accordingly has at least one tap (7, bore 15, or bore 45) permanently integrated into it in addition to the replaceable filter. The housing accommodates either a cartridge or a start-up outlet bore (16, 36, or 47). While the cartridge is in a prescribed position, the start-up outlet bore can communicate with the cartridge's tap and with an intake channel (13 or 31) for the extrudate.

Abstract: A manual die set includes a ram, the ram defining a bore therethrough; a die, the die defining a bore therethrough for reciprocably receiving the ram; a baseplate having an upper portion and a lower portion and defining a bore therethrough, the upper portion of the baseplate being disposed in a bottom of the die bore, the lower portion of the baseplate supporting the die; a knockout ring for supporting the die; a supporting block disposed in an interior of the knockout ring, for supporting the baseplate when the manual die set is in a pressing configuration, the supporting block defining a bore therethrough; and a mandrel, the mandrel being disposed in the ram bore, the baseplate bore and the supporting block bore when the manual die set is in a pressing configuration, the mandrel including an upper large diameter portion, a transition portion and a lower small diameter portion.

Abstract: The invention provides a molding apparatus and particularly a corrugator for manufacturing pipes, particularly corrugated pipes, having at least two series of circulation mold jaw parts, which form a molding channel in a predetermined area, and wherein the series are guided in respective circulation guides. The invention further provides that at least one exchangeable mold jaw parts or mold blocks is provided with another pipe molding wherein at least one exchange member is provided along at least one of the circulation guides of at least one of the mold jaw part series.

Abstract: A method for forming a composite extrusion is disclosed, wherein a continuous length is formed having a leading length and a trailing length, the leading length including the primary extrudate and a first appendage extrudate and the trailing length including the primary extrudate and a second appendage extrudate, wherein the first appendage extrudate and the second appendage extrudate are formed form corresponding interchangeable first and second insert dies. The continuous length of the composite extrusion includes (i) the leading length having the primary extrudate and the first appendage extrudate; (ii) a change over length having the primary extrudate; and (iii) the trailing length having the primary extrudate and the second appendage extrudate, wherein a plurality of individual weatherseals can be cut from the leading length, and a plurality of weatherseals can be cut from the trailing length.

Abstract: The present invention relates to an apparatus for the manufacture of corrugated pipes from thermoplastic in which mould segment halves, which complement one another in pairs, are guided together in a circuit along a mould path adjacent to an injection head, are moved apart at the end of the mould path and are returned back to its start separately from one another. The apparatus has a mould path device to move the mould segment halves along the mould path and a return conveyor to return the mould segment halves from the end of the mould path back to its start, with the mould path device comprising a machine table having a lower guide and lower drive means for the mould segment halves and a cover frame secured to the machine table having an upper guide and upper drive means for the mould segment halves.

Abstract: The present invention includes an extrusion line system capable of simultaneous running and retooling. The invention utilizes a turret device having an upper surface adapted to rotate about a central point. The turret device has on its upper surface a first and second production line portion. The production line portions are positioned on the upper surface such that when the turret device is in one position the first production portion may be used with an extrusion device. When the turret device is in a second position, the second production portion may be used. This approach allows retooling of one of the production portions while the other production portion is running on the line.