Abstract: A method for injection moulding, comprising introducing, under pressure, a melt into a cavity (14) defined by two mould halves (10, 11) of a mould (6). The method is characterised by the steps of joining the mould halves (10, 11), for definition of said cavity (14), by moving at least one of the mould halves (11) along a first axis, and, by moving along a second axis extending transversely of said first axis, arranging a locking means (7) on the mould (6). The locking means (7) has locking surfaces (19) which grasp the mould (6) and its joined mould halves (10, 11), at least one locking surface (19) wedgingly engaging a complementarily designed surface (17) of the mould (6) to cause conversion of the force by which the locking means (7) is arranged on the mould (6), into a locking force for holding together the mould halves (10, 11) in their joined state. The present invention also concerns an injection moulding assembly as well as a mould for injection moulding assemblies.

Abstract: In a modular mold assembly first and second mold frame halves used to define at least one aperture extending therethrough, the apertures cooperating to define a mold module cavity when said first and second halves are assembled. At least one mold module slidingly receivable in each of the apertures and can be locked therein securing the mold module within the mold cavity in response to the first and second halves being in engagement with one another. Upon separation of the mold halves, the modules are released and can be removed.

Abstract: A mold clamping apparatus for an injection molding machine comprises a stationary platen fixedly holding the stationary mold, a movable platen fixedly holding the movable mold and disposed opposite to the stationary platen, tie bars for guiding the movable platen for movement toward and away from the stationary platen, a movable platen driving mechanism for moving the movable platen along the tie bars to close and open the mold, a movable platen fixing mechanism for fixing the movable platen to the tie bars at a set position immediately before a position where the movable mold is joined to the stationary mold, and a clamping force applying mechanism that includes a sealed hydraulic cylinder actuator capable of converting energy of a hydraulic fluid into an intensified mold clamping force and of applying the intensified mold clamping force to the stationary platen.

Abstract: A mold clamping apparatus for an injection molding machine includes a stationary platen fixedly holding the stationary mold, a movable platen fixedly holding the movable mold and disposed opposite to the stationary platen, tie bars for guiding the movable platen for movement toward and away from the stationary platen, a movable platen driving mechanism for moving the movable platen along the tie bars to close and open the mold, a movable platen fixing mechanism for fixing the movable platen to the tie bars at a set position immediately before a position where the movable mold is joined to the stationary mold, and a clamping force applying mechanism including sealed hydraulic cylinder actuators capable of converting energy of a hydraulic fluid into an intensified mold clamping force and of applying the intensified mold clamping force to the stationary platens.

Abstract: A hydrostatic drive system for an injection molding machine which has a movable mold-closing plate comprises a hydraulic pump and a differential hydraulic cylinder, by which the mold-closing plate can be moved in the direction of the closing position by the feeding of pressure medium into the second pressure space remote from the piston rod and can be moved in the direction of the open position by the feeding of pressure medium into the first pressure space on the piston-rod side.

Abstract: An injection molding machine having four tie bars extending through and between a movable platen and a fixed platen each of which carry a half of a mold. To enable the movable platen to withstand the forces which arise during a molding process, a pressure control mechanism including a piston in association with each tie bar is received within a corresponding recess provided in the movable platen and in order to grip the tie bars during the molding process a gripping mechanism is provided which is supported by the piston such that the gripping mechanism and the piston effectively form a single movable unit. The gripping mechanism comprises a pair of gripping jaws which are transversely movable and are moved by way of a rotatable disc which is also provided in the single movable unit.

Abstract: A die casting machine has a divisible die casting tool. To be able to die cast in a secure manner large die-cast parts beyond elasticity-caused limits of the machine construction, the locking pressures for the die casting tool are transmitted by tool-integrated tie rods into a power flux circuit remaining within the die casting tool. In the closed condition of the die casting tool, the tie rods can be anchored in a tension proof manner on both sides of its mold parting surface in the die casting tool and, for the opening, can be detached at least from one of the tool parts of the die casting tool. For limiting the flow paths of the molten mass, several casting cylinders for feeding the casting material into the casting mold are distributed thereon so that the casting mold can be filled simultaneously from several points.

Abstract: A method and a mold clamping press for injection molding machines; the press comprises a stationary platen and a movable platen operatively connected to control means which can be operated to relatively move the platens towards and away from each other. Slidable tie-rods, each connected to a respective control cylinder, axially extend between the platens passing through locking bushes rotatably supported by a platen of the press. Each locking bush and the corresponding tie-rod are provided with opposite intermeshing screw threads having an axial clearance; the bushes are made to rotate in synchronism and in a way correlated to the displacement of the movable platen, avoiding any frictional contact between the screw threads during the closing and opening of the mold.

Abstract: An improved method and apparatus for injection molding is shown which utilizes an injection molding or plasticizing unit in combination with a novel detachable clamping unit to provide a readily interchangeable clamping unit having easy access to both halves of the injection mold.

Abstract: A stationary platen (14) and a movable platen (18), which are connected with each other by tie rods (28), to which metallic molds are respectively attached, are opened and closed by an electrically driven ball screw mechanism. The movable platen is composed of a platen body and a pressure plate (304) attached to the platen body which can be contacted with and separated from the platen body. Between the movable platen and the pressure plate, clamping is conducted by the expansion and contraction of a bladder (318) into which hydraulic oil for clamping can be introduced. The bladder houses an insert die (320), the shape of which is identical with an internal shape of the bladder, and a hydraulic oil path is formed in the insert die. While a ball screw member (102) of an electrically driven ball screw mechanism is being supported being capable of moving in the axial direction, a brake means (130) for restricting rotation is provided, and a mold releasing cylinder mechanism (116) is connected.

Abstract: In a modular mold assembly first and second mold frame halves used to define at least one aperture extending therethrough, the apertures cooperating to define a mold module cavity when said first and second halves are assembled. At least one mold module slidingly receivable in each of the apertures and can be locked therein securing the mold module within the mold cavity in response to the first and second halves being in engagement with one another. Upon separation of the mold halves, the modules are released and can be removed.

Abstract: An injection molding machine mold clamping device (1) comprising an electromechanical mold opening and closing mechanism, a hydraulic mold clamping. mechanism, and a mold thickness adjustment device, said mold thickness adjustment device comprising a first detection device (70) for detecting the position of a mold clamping ram (51), a second detection device (90) for optically detecting the position of a half nut device (20), and a mold clamping ram position control device (90) for hydraulically holding and controlling the position of the mold clamping ram (51). The position of the half nut device (20) is held by hydraulic control at the mold thickness adjustment position during mold opening and closing. In the initial mold opening and closing operation, the large mold opening force exerted by the mold clamping ram (51) may be used to open the mold.

Abstract: The invention relates to a mold closure unit for an injection molding machine comprising a first device provided for moving the moveable mold support on the stationary mold support in a direction to and from said stationary mold support. By connecting a second device, the first device comes in contact with its rotatable element and is decoupled from the induction flux. Additional inductions produced by the second device are transmitted to the moveable mold support via a force transmission element which is in the form of a pressure pipe. A switching chamber designed as a decoupling means which can be actuated by a hydraulic medium is arranged between the force transmission element and the supporting element, whereby, similar to the second device, the pressure in the switching chamber can be switched in any manner. As a result, a switchable transition between the first device and the second device is obtained.

Abstract: Mold clamping apparatus is disclosed which includes: an electrically-operated movable-platen-driving device of ball-screw type having a first ball-screw shaft supported by one of a movable and a rear platens, a first ball-nut threaded-engaged with the first ball-screw shaft and supported by the other of the movable and rear platens, and a movable-platen driving device for rotating the first ball-screw shaft and nut relative to each other so as to generate a relative longitudinal motion of the first ball-screw shaft and nut so that said movable platen is moved toward and away from a stationary platen to close and open the mold; a pressure-generating cylinder device having a pressure-generating piston moved by the relative longitudinal motion of the first ball-screw shaft and nut in order to generate a hydraulic pressure; and a mold clamping cylinder device adapted to generate a mold clamping force based on the hydraulic pressure applied from the pressure-generating cylinder device; and an engaging device which

Abstract: An injection molding machine includes a movable platen specifically adapted to uniformly distribute a clamp force to the mold half surfaces thereby reducing localized deflections and unwanted flash on the molded article.

Abstract: An internal latch for an injection mold that allows opening of the mold at parting lines while selected plates are locked in position and prevented from moving. The system includes an external bushing, an internal bushing that carries cam retainers, and a locking pin. The system may be used in an injection mold having in sequence a stationary plate, a stripper plate and a support plate. The external bushing is secured to the support plate, the internal bushing is secured to the stripper plate, and the locking pin is secured to the stationary plate. The cam retainers selectively engage grooves in the external bushing to lock the stripper plate from moving with respect to the support plate when the locking pin is inserted into the internal bushing beyond the location of the cam retainers. When the locking pin is extracted from the internal bushing, the cam retainers are free to move inwardly thus unlocking the stripper plate from the support plate.

Abstract: The invention relates to an interlock for a column, comprising a piston with a piston rod, such that the piston rod is disposed in a claw bush, the claw bush being disposed in a single- or multi-part plate, such that the piston and the claw bush can move in the single- or multi-part plate. In one embodiment, the claw bush has at least two stages, to apply the force in a distributed manner, the contour of the stages corresponding to the end of the piston rod and/or to the end of the column, the average radius of the first stage differing from the average radius of the second stage.

Abstract: An injection molding machine having four tie bars extending through and between a movable platen and a fixed platen each of which carry a half of a mold. To enable the movable platen to withstand the forces which arise during a molding process, a pressure control mechanism including a piston in association with each tie bar is received within a corresponding recess provided in the movable platen and in order to grip the tie bars during the molding process a gripping mechanism is provided which is supported by the piston such that the gripping mechanism and the piston effectively form a single movable unit. The gripping mechanism comprises a pair of gripping jaws which are transversely movable and are moved by way of a rotatable disc which is also provided in the single movable unit.

Abstract: The mold clamping device with improved transmission mechanism includes: a middle platen 2 fixedly supported by a support base 1 and carrying the lower metallic mold 6; and front tie-bars 3a extending slidably therethrough. A movable platen 4 carrying the upper metallic mold 7 is secured to the top ends of the front tie-bars 3a. The horizontal connecting bar members 5a and 5b connect the bottom ends of the front and the rear tie-bars 3a and 3b. The middle platen 2 and the horizontal connecting bar members 5a and 5b are operatively coupled by means of the pantograph mechanism consisting of flat bar-shaped links 15a and 15b, whose front and rear joints are pinned to annular links 16a and 16bengaging with a left-and-right-handed ball thread member 17 driven by a driving source.

Abstract: A mold clamping apparatus in which hydraulic oil that is forcibly discharged into hydraulic lines from one of two kinds of cylinders, that is, a differential mold clamping cylinder and a mold clamping oil chamber of a mold opening/closing cylinder, is, in an alternating manner, provided to the other cylinder as its operating oil. This feature enables the simultaneous operation of the two kinds of cylinders as well as reduction in operating time in which the mold is opened or closed. The mold clamping apparatus includes a stationary mold, a movable mold which closes with respect to the stationary mold, a core movable through the movable mold into and out of the stationary mold. The movement of the core into and out of the stationary mold is effected by a differential mold clamping cylinder which is separate from a mold opening/closing cylinder for the movable mold and is fitted with a booster ram.

Abstract: A table-top coffee vending machine providing slide-out storage containers for easy filling and removal, a compact fast acting coffee brewing system and a filter paper cutting and storage system. A plurality of storage containers for ground coffee, hot chocolate ingredient and condiment are provided in a rack system that allows the group containers to be slid out of the machine cabinet on telescoping rails to allow easy filling and removal of the containers. The brewing method includes simultaneously supplying water and coffee grounds to a brewer, stopping the supply of both, allowing the mixture to steep and then beginning to remove the mixture from the brewer while reinitiating the supply of water to the brewer for a sufficient time to supply a complete cup of coffee at a cup station. The filter paper cutter cuts lengths of paper from a continuous supply of filter paper after it is used in the brewer to filter the coffee.

Abstract: The invention relates to an injection molding device for plastic materials, wherein the locking pressure acting on the divided mold (1) is transmitted by a plate (2′) that is traversed by cantilevers (3) supported on the outer side of the plate (2′). Preferably, the support comprises a jacket (7) having unequal peripheral wall thickness or height.

Abstract: A mold interlocking device that includes a first portion attached to a mold half that has a head with a channel and an insert therein that is received in a pocket of a receptacle of a second portion that is attached to another mold half. In one embodiment, the head comprises sidewalls each with channels that receive a replaceable insert therein. Preferred inserts include rollers, plates, plates with lubricating plugs, and plates comprised of layers. In one embodiment, each sidewall of the head has a tapered section disposed between a mounting base and a straight section and each pocket is defined by a complementarily contoured sidewall. In another embodiment, each head sidewall further includes a second tapered section adjacent the free end of the head.

Abstract: A mold-closing unit for an injection molding machine for processing plasticizable masses includes a support element for supporting a piston-cylinder unit for moving a mobile mold carrier and to support a pressure cylinder, and a hydraulic block to supply hydraulic lines inside the support element. The support element has at least two support sections which accommodate between them the hydraulic block and are connected to the hydraulic block via a fastener. Thus the mold-closing unit can be constructed more compactly, with shortening of the bores for the hydraulic lines.

Abstract: A mold clamping apparatus of an injection molding machine is equipped with a drive mechanism for opening, closing, and clamping a mold. The drive mechanism includes a first drive mechanism portion including a first drive motor portion and a first ball-screw mechanism portion and advancing and retracting a movable platen in order to effect high-speed mold opening/closing operation; a second drive mechanism portion including a second drive motor portion and a second ball-screw mechanism portion and pressing a pressure platen in order to effect high-pressure mold clamping operation; and a clutch mechanism for connecting the pressure platen to the movable platen in a pressure applicable manner when the movable platen is located at a mold close position. The first drive mechanism portion advances and retracts the movable platen in order to effect high-speed mold opening/closing operation.

Abstract: A self-compensating support skate (46) for an annular hydraulic ram (15) mounted in the front stationary platen (10) of a “two-platen” injection molding machine (1) is disclosed. The hydraulic ram (15) fits into a central bore (22) in the stationary platen (10) and connects directly to a relatively thin die platen (11) that provides a mold mounting surface. The purpose of the skate (46) is to prevent movement (tilting) of the die platen (11) and the resulting misalignment with the movable platen (20) when the mold (30) is attached. The skate (46) is adjusted during assembly to compensate for the tolerance stack-up in the ram assembly. The “zero” clearance is maintained by disc springs (56) within the skate (46) that compensate for the expansions and contractions of the large diameter parts due to temperature variations. The die platen (11) is held in the aligned position by contact with the lower tie rods (7).

Abstract: The present invention relates to a metal mold for producing a synthetic resin molded product, particularly a thermoplastic resin molded product, which is characterized by comprising: a first mold, a sliding mold that is allowed to slide over the entire outer circumferential face or on a portion of said first mold, a second mold having a parting face that is capable of contacting the face of the outer circumference of said sliding mold, and a mechanical clamping mechanism that makes the outer circumferential portion of the said sliding mold mechanically coupled to said second mold, wherein said sliding mold has a sliding direction that is the same as the opening and closing direction of the two molds, that is, the first mold and the second mold, and the sliding face between the first mold and the sliding mold is located inside the outer circumferential line, of a plane projection figure in the opening and closing direction of the metal mold, of a synthetic resin molded product which is molded by the metal mold

Abstract: An injection molding apparatus for producing formed or molded millwork products includes a workstation supported on a support surface, a lower composite mold/press unit mounted upon the workstation and defining a lower portion of a mold cavity, and upper composite mold/press unit defining an upper portion of the mold cavity, and support members spaced apart from one another along the lower composite unit, movably mounted to the workstation, and extending above the lower composite unit where the support members mount the upper composite unit generally above and for movement toward and away from the lower composite unit. Either of the lower and upper mold/press units can have replaceable plates for different shaped products. The apparatus also includes actuators for the support members and releasable locking mechanisms for the upper composite unit.

Abstract: A mold clamping apparatus for an injection molding machine including a stationary platen fixedly holding the stationary mold, a movable platen fixedly holding the movable mold and disposed opposite to the stationary platen, tie bars for guiding the movable platen for movement toward and away from the stationary platen, a moveable platen driving element for moving the movable platen elements for fixing the movable platen to the tire bars at a set position immediately before a position where the movable mold is joined to the stationary mold, and a clamping force applying element including hydraulic cylinder actuators capable of converting energy of a hydraulic fluid into an intensified mold clamping force and of applying the intensified mold clamping force to the stationary platen.

Abstract: A mold clamp has a drive pivotally mounted on a first mold half. The drive includes a cylinder body and a piston, wherein one of the cylinder body or the piston is pivotally mounted to the first mold half and the other has a pair of pins and a locking plate having an engagement face. A guide directs the drive between a retracted position and an extended position. The guide has a pair of spaced apart guide plates mounted to the first mold half. Each guide plate has an arcuate slot slidably receiving the pins. An abutment is mounted on a second mold half. The abutment has a complementary engagement face for cooperating with the engagement face of the drive for enhancing engagement therebetween.

Abstract: A mechanism for applying a clamping force to a columnar member, such as a tiebar, is described. The clamping mechanism includes a compressible member surrounding the columnar member for gripping the columnar member and transmitting a clamping force thereto, which compressible member is slidable along the columnar member. The mechanism further includes a clamping piston for applying a clamping force, which clamping piston has a bore with an engaging surface for receiving and frictionally engaging the compressible member. The frictional engagement between the compressible member and the engaging surface prevents any relative sliding movement between the compressible member and the clamping piston.

Abstract: An integrated circuit encapsulation apparatus comprises a molding press, which has a mold defining a cavity adapted to receive an integrated circuit die and an attached leadframe for encapsulation thereof. The molding press is operable by an electro-pneumatic driving mechanism which utilises a geared servo motor for opening and closing the mold, and a pneumatic cylinder for providing clamping pressure. Both the servo motor and pneumatic cylinder act upon a threaded screw member for movement of the molding press. The press is provided with an integrated mold brushing unit which has transversely rotating brushes and travels over the mold faces to remove debris. In a further refinement, a spring-loaded bearing system is provided for easy removal of the mold.

Abstract: A closing unit for an injection moulding machine has a movable closing die and a fixed matching die, as well as several hydraulic cylinders mounted on the fixed matching die to generate the closing force. The closing die has a drawbar for each hydraulic cylinder. The piston of each hydraulic cylinder is mechanically linked to a rotary locking bushing. The drawbars extend through hydraulic cylinders and locking bushings. A servo-drive allows the locking bushings to swivel up to a first and second angular position. First locking elements located along a section of the drawbars cooperate with second locking elements in the locking bushings so that in the first angular position the drawbars may be axially pushed through the hydraulic cylinders and the locking bushings, and in the second angular position the closing force may be transmitted from the hydraulic cylinders to the closing die.

Abstract: A compression apparatus for molding which applies uniform compression force to molten resin, and facilitates downsizing of the overall compression apparatus and attachment of the compression apparatus to a molding machine. Also, an injection compression molding machine and an injection compression molding method which use the compression apparatus for molding are disclosed. The compression apparatus is disposed in the rear of the movable mold of a die of a molding machine in which the movable mold is advanced toward the stationary mold of the die in order to apply compression force to the charged molten resin, to thereby mold the molten resin. The compression apparatus has a function of generating a pressing force for pushing the movable mold toward the stationary mold. The compression apparatus includes first and second slant members and having respective slant faces and in surface contact with each other. The slant members are advanced toward the slant members in order to generate pressing fore.

Abstract: Construction includes a stationary platen and a movable platen movable with respect to the stationary platen from a closed position in clamping engagement with the stationary platen to an open position spaced from the stationary platen. At least two tiebars are provided connecting the stationary platen to the movable platen, and a stroke cylinder within each tiebar operative to move the platens from an open to closed position and from a closed to open position. Clamping means are provided to clamp the platens together in the closed position, and including means carried by the tiebars to engage the clamping means.

Abstract: A locking apparatus secures a movable platen in position relative to strain rods on which the movable platen is slidably carried. The locking apparatus includes split nuts that are carried by the movable platen and are pivotable about respective pivot axes between a first position in which the split nuts engage the strain rods and a second position in which the split nuts are pivoted away from the strain rods. The strain rods include grooved sections and the split nuts carry internal grooved portions that are complementary with the grooved portions of the strain rods so that the split nuts are engageable with the grooved portions of the strain rods to retain the movable platen in a desired position during a molding operation.

Abstract: A locking and opening device for an injection moulding die, particularly for processing highly liquid melted plastic material, provides a technically simple, low cost mechanism to lock the die and limit elements located above workbench level or mould level, when the device is arranged vertically. To achieve this, clamping pins hold one moulding die in a closed position in relation to an overlying moulding die and which can be axially displaced into a closed or open position by means of a sliding element associated with each clamping pin.

Abstract: A closing unit for an injection moulding machine has a movable closing die and a fixed matching die designed as clamping dies for an injection mould, as well as several hydraulic cylinders mounted on the fixed matching die to apply a closing force. A servo-drive allows the drawbars to swivel around their longitudinal axes up to a first and second angular position. A first locking device arranged on the drawbars along a first section A of the drawbars co-operates with second locking device arranged on the movable closing die. In the first angular position of the drawbars, the locking devices allow the movable closing die to move axially with respect to the drawbars, and in a second angular position of the drawbars they transmit the required closing force.

Abstract: Two sets of linear motors are fixed on opposed sides of a molding head driving device. Each linear motor includes a movable slider facing a casing. The linear motor contains a molding head and a magnetic plate facing a molding head. The use of two linear motors cancels out the magnetic attraction between the facing linear motors. A linear roller guide is disposed vertically in a direction perpendicular to the magnetic attraction between the linear motors so that the magnetic attraction from the linear motors does not act on the linear roller guide. In another embodiment, three sets of molding head driving devices are disposed between left and right frames integrally formed projecting from a base to form a molding device. In a further embodiment a pair of double linear motors drives four molding head driving devices. The double linear motors are affixed together by, for example, bolts.

Abstract: A clamping apparatus for a tiebarless injection moulding machine is arranged to absorb all of the clamping forces. The machine has a machine frame supporting a fixed platen and a movable platen which carry mould halves. The movable platen is slidable along linear guide rails as is a force transmission member or second movable platen incorporated in a drive for the movable platen. The drive comprises a hydraulic cylinder and piston unit. A clamping structure has two, parallel clamping frames, each of which is substantially U-shaped so that upstanding clamping arms are defined in each clamping frame. Each clamping arm terminates in a respective force transmission part which has a curved surface and which abuts a respective one of the fixed platen and the second movable platen. When a moulding operation is undertaken, the mould halves carried by the fixed and movable platens are brought into clamping contact.

Abstract: A hydraulic closing unit has a ring-shaped hydraulic cylinder that generates a closing force, a locking bushing, an assisted drive for swivelling the locking bushing from a first angular position to a second angular position, and a pressure bar that extends through the hydraulic cylinder and the locking bushing in the axial direction. Outer teeth on the pressure bar and inner teeth in the locking bushing allow the pressure bar to be axially pushed through the locking bushing in the first angular position of the locking bushing, and an axial force to be transmitted in the second angular position of the locking bushing. The hydraulic cylinder is designed as a double action, ring-shaped compression cylinder. The piston of the hydraulic cylinder is secured against rotation and screwed by a rotary thread into the rotary locking bushing.

Abstract: A clamping assembly for an injection molding apparatus includes a first platen attached to a base and a second platen slidingly associated with the base. A number of tiebars are mechanically linked to each of the platens through a number of mechanical linkages. An actuation system associated with the plurality of tiebars and with at least one of the platens is configured to generate movement of the second platen relative to the first platen. The mechanical linkage between each of the tiebars and at least one of the platens includes a threaded bushing engaged with a threaded portion of the tiebar. The actuation system is configured to generate relative rotation between each of the tiebars and a corresponding one of the threaded bushings.

Abstract: Injection molding machine (1) comprising a machine frame (2) with a stationary plane (5) and a movable plane (6) for the mounting of mold parts (7, 8), and where the movable plane (6) is connected to a conveying mechanism (10, 10′) which exerts the pressure necessary to close the mold parts and keep these closed during the injection phase. The machine further comprises a mounting plane (9) for the conveying mechanism. The mounting plane (9) and the stationary plane (5) are provided with tie rods (17), expansion elements or similar devices, and at least one of the planes (5, 9) is mounted or suspended in at least one elastic machine part (30, 30′) arranged in the plane's opposite side in relation to the fastening to the planes of the tie rods (17), the expansion elements or similar devices.

Abstract: A two-platen mold-clamping apparatus is provided, which requires neither tie bars nor rear platen, and is thus comprised of a reduced number of components, is easy to maintain, and is low-priced. A plurality of ball nuts are mounted on a movable platen so as to be rotatable but axially immovable relative to the movable platen. The movable platen mounted for reciprocal motion relative to a stationary platen. A respective ball screw is threadedly engaged with each of the ball nuts and each balls screw has an end portion that is fixed to the stationary platen. A motor rotates the ball nuts by means of sprockets and a chain so that the ball nuts and the movable platen are moved toward the stationary platen. The ball screws are moved longitudinally relative to the movable platen so as to generate a mold-clamping force after a mold-touch state has been reached.

Abstract: The invention relates to a latch lock (1) for a tool (2) used in the injection moulding of plastics or the die-casting of metals having a moving element (A) such as a mould plate or similar intended, after having been displaced for a certain distance, to be locked in the attained position prior to any subsequent actuation. According to the invention, an axially slotted sleeve (3) is so arranged as to accommodate internally a connecting piece (4) exhibiting radially projecting drawing wings (5) that are attached to a tool plate (B) and are movably guided by the slots (6, 7) in the sleeve along the sleeve (3). An end closure (9) attached to a tool plate (A) is also detachably attached to the guiding slotted sleeve (3).

Abstract: Device for injection moulding of plastics has one stationary and one moveable die platen, and a mechanism for producing a closing force between the half moulds carried by the die platens. The closing force is introduced exclusively into selected areas (19) of a supporting frame adjacent longitudinal spars and spaced apart from one another, and the ends of the spars (6) are connected by tension bars (11).

Abstract: The present invention relates to an improved drive system for rotatable members in molding machines. The drive system comprises at least one frameless, brushless electric motor having a stator mounted to the machine and a rotor directly coupled to the rotatable member. Each rotor is coupled to the rotatable member so that the axis of rotation of the rotor is concentric to the axis of rotation of the rotatable member.

Abstract: A tie-bar less clamping apparatus is intended for use in combination with an injection molding machine. A stationary platen (24) is fixed to a first support section (20B) of a support frame (20), and linear motors (30) are incorporated into the second support section (20C) of the support frame (20). One end of an armature (34) included in each linear motor (30) and having the shape of a rod is connected to a movable platen (28).

Abstract: A baking apparatus for the production of foamed carbohydrate-based baked products which expand during the baking process has a baking tongs with a pair of tong parts hinged together and a baking mold whose mold halves are each received in a respective one of the tong parts. The hinge has hinge sections connected by two pivot pins with pivot axes offset from one another and enabling a change in the volume of the baking mold. Opposite the hinge sections, a holding device can hold the baking tongs closed.

Abstract: A securing/clamping system for use with platens of a molding machine including a stationary platen having a first mold half affixed thereto, a movable platen having a second mold half affixed thereto, the movable platen travelling along a plurality of tiebars, and reciprocatively moving between a mold open and mold closed position, and a system for applying a clamping force to the movable platen.