Abstract: A heater and thermocouple assembly for use with a hot runner nozzle with an elongated heater body, said heater body having at least one first heating section, which in operation is positioned adjacent to the front end portion of the hot runner nozzle, and at least one second heating section which in operation is positioned adjacent to a nozzle head of the hot runner nozzle and has an at least partly annular distance section with a wall which is arranged between the first and second heating sections.

Abstract: The vertical injection molding machine is provided with an electric servomotor which moves an injection drive unit up and down accompanying the rotation of a driven pulley via a ball screw mechanism, a timing belt by which the drive force of the electric servomotor is transmitted, and a driven pulley on which the timing belt is rotated, wherein an arc groove is formed on the driven pulley, and an election pin is provided which is inserted to the arc groove of the driven pulley when the timing belt is disconnected. When the election pin is inserted to the arc groove, the tip of the election pin applies pressure on an inclined portion by means of elastic force of a spring, slowing the rotational speed of the driven pulley and stopping the injection drive unit by an inner wall surface of the slowed driven pulley colliding with the ejection pin.

Abstract: The disclosure relates to an injection molding module including a mold unit and a slider that is disposed in the mold unit and that cooperates with the mold unit to define a cavity and a cooling runner in spacial communication with the cavity. The cooling runner includes a main section that is formed with an inlet, and a tapering section that extends from the main section in a lengthwise direction and that is formed with an outlet in spatial communication with the cavity. The inlet has an axial direction that is not parallel with the lengthwise direction, thereby the plastic material having a flow direction that is changed when a plastic material is fed into the cooling runner through the inlet.

Abstract: A disclosed injection molding machine includes an ejector rod that is used to protrude a molding product from a mold, a driving source that moves the ejector rod in an axial direction of the ejector rod, a controller that controls the driving source, a position detector that detects the position of the ejector rod, and an operations unit that receives an input operation input by a user, wherein the controller sets up a current position of the ejector rod, which is detected by the position detector when the operations unit receives a first button operation operated by the user, to be a waiting position of the ejector rod after protruding the ejector rod or to be a protruding position of the ejector rod.

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

Abstract: This injection apparatus injects and fills the inside of a mold with a molding material, and increases the pressure. The injection apparatus is provided with a unit for a low speed step, a unit for a high speed step, a unit for a pressure increasing step, and an injection plunger. A rod of a first unit, which is any one of the three units, is mechanically coupled to the injection plunger. A rod of a second unit, which is one of the two units other than the first unit, is mechanically coupled to the first unit. A rod of a third unit, which is the unit other than the first and second units, is mechanically coupled to the second unit.

Abstract: Apparatus for injection-moulding of plastic materials comprising a hot runner (1), at least one injector (2) including a nozzle mobile within which is a valve pin (3) driven by a rotary electric motor (4) and an associated transmission including a screw-and-nut assembly (10) for converting the rotation of the shaft (5) of the electric motor (4) into a translation of the valve pin (3). At least the rotary electric motor (4), and the screw-and-nut assembly (10) are set parallel alongside one another.

Abstract: A thermoplastic injection molding system and method of use is described for molding parts from heated plastics and other organic resins. The machine uses heat sources located along the barrel to heat the source material while an auger screw transports the source material in the barrel. This transport step does not shear the source material, nor does it use friction to produce the heat necessary to melt the source material. The material becomes substantially liquid or melted during the heating process, and the melted material is forced, by the auger screw, into a chamber whereupon a plunger, situated concentrically with the auger screw, injects the material from the chamber into a mold. Sensors located along the barrel and in the chamber ensure consistency between mold cycles. The controller dynamically adjusts the injection molding process to achieve more consistent and reliable molded parts.

Abstract: An injection mold assembly for a high output consumer product injection molding machine, the injection mold assembly having a simplified cooling system. The simplified cooling system has a cooling complexity factor of less than three, preferably less than two, more preferably less than one.

Abstract: An injection unit for an injection molding machine includes a nozzle for dispensing melt to a mold, and a valve housing having a first port in fluid communication with the nozzle. The valve housing has a second port and a third port. A plasticizing barrel is in fluid communication with the second port. A shooting pot is in fluid communication the third port. A valve closure member is mounted in the valve housing. The valve closure member is moveable between a first position in which the first port is in fluid communication with the third port and in fluid isolation of the second port, and a second position in which the second port is in fluid communication with the third port and in fluid isolation of the first port. When in at least one of the first and second positions, fluid communication is provided between the respective ports through a gap provided between an outer surface of the closure member and an inner surface of the valve housing.

Abstract: In an injection molding machine provided with an injection member (injection screw or plunger) having a check valve, a process position of the injection member such as a metering completion position or an injection speed switching position is changed at every predetermined cycle. Thus, it is possible to periodically change a position inside a cylinder which is easy to wear and to reduce the frequency of performing the maintenance of a purging or disassembling and cleaning.

Abstract: Drive apparatus (1, 101), in particular for driving a worm of an injection molding machine, which worm is arranged coaxially with respect to an injection molding cylinder, having a housing (9, 109) which is mounted such that it can be displaced in an axial direction of the housing (9, 109) and is fixed rotationally, an output shaft (21, 121) which is mounted non-displaceably and rotatably in the housing (9, 109), a rotational drive (5) which is arranged in the housing (9, 109) for the rotational drive of the output shaft (21, 121), and a translatory drive (3) which is arranged in the housing (9, 109) for the translatory drive of the housing (9, 109).

Abstract: An in-mold shutter (140) for embedding in an injection mold (100, 200, 300) is described herein. The in-mold shutter (140, 240, 340, 440, 540) includes a shutter actuator (148, 548) that is configured to selectively engage a first mold shoe (130) of the injection mold (100, 200, 300) with a platen of a mold clamping assembly (996) to hold the first mold shoe (130) in an extended position (E), along a mold-stroke axis (X), during a step of molding a first molded article (102A) in the injection mold (100, 200, 300). Also described herein is a molded article transfer device (150, 250) for use with the injection mold (100, 200, 300). The molded article transfer device (150, 250) includes a shuttle (154) that is slidably arranged, in use, within the injection mold (100, 200, 300).

Abstract: A coinjection molding apparatus is disclosed that provides first and second material melt streams to a nozzle. The nozzle defines a first material melt passage for receiving the first material melt stream, a second material melt passage for receiving the second material melt stream and an outer layer melt passage, which receives a portion of the first material melt stream from the first material melt passage. The first material melt stream from the first material melt passage forms an inner layer of a molded article, the second material melt stream from the second material melt passage forms a core layer of the molded article, and the first material melt stream from the outer layer melt passage forms an outer layer of the molded article, wherein the three melt streams combine prior to entering a mold cavity.

Abstract: A plurality of connecting rods are attached to an injection device located opposite a stationary platen on a base structure of an injection molding machine. The stationary platen is provided with a magnetism generating unit formed of a permanent magnet, and the connecting rods are provided with a magnetic body. As the magnetism generating unit and the magnetic body are attracted to each other by magnetism, a nozzle of an injection unit is brought into contact with a mold. By this structure, the stationary platen can be prevented from inclining during nozzle touch operation.

Abstract: The first sliding molds are movable back and forth in a direction orthogonal to a back-and-forth direction of the movable mold, come into contact with a periphery of the central mold when the first sliding molds move forward to form a first cavity for molding a panel body, and avoid interference with a second sliding mold when the first sliding molds move back to form a second cavity for molding a frame. The second sliding mold is movable back and forth in the back-and-forth direction of the movable mold, allows a forward movement of the first sliding molds when the second sliding mold moves back to form the first cavity, and comes into contact with an inner peripheral edge and an outer peripheral edge of the panel body held on a fixed mold, thereby forming sealing portions, when second sliding mold moves forward to form the second cavity.

Abstract: An injection apparatus includes a pressure accumulating portion connected to an operation chamber of an injection cylinder. A control unit controls the speed at which the injection cylinder moves and is connected to a rod of the injection cylinder. The control unit includes a rotary shaft that follows the movement of the rod and is capable of moving in the same direction as the rod, a conversion mechanism that converts the linear motion of the rod into the rotation of the rotary shaft, and a rotation member coupled to the rotary shaft. The control unit further includes a resistance generating member that generates a frictional resistance by coming into sliding contact with the rotation member, an actuating member that is moved by an electric drive source, and a movement mechanism that follows the movement of the actuating member and moves the resistance generating member relative to the rotation member.

Abstract: An injection molding machine includes a molding machine controller having a computer function to perform molding by controlling a mold clamping device that clamps a mold and an injection device that injects and charges resin, plasticized and molten by rotation of a screw inside a heating cylinder, into the mold by advancement of the screw. The molding machine controller includes a mode selecting function that selects either of two modes of an injection side setting priority mode for injecting and charging the resin by giving priority to a molding condition set on the injection device side and a mold clamping side setting priority mode for injecting and charging the resin by giving priority to a molding condition set on the mold clamping device side. A setting screen display function for displaying an injection side priority setting screen and displaying a mold clamping side priority setting screen is provided.

Abstract: An injection molding machine includes an ejector unit configured to eject a molding product from a mold and a mold release force sensor configured to detect a force to release the molding product from the mold.

Abstract: An actuator for an injection molding tool includes a housing, a plunger and a slide member. The housing includes an aperture extending therethrough and a first recess extending through an open end of the aperture. The plunger is slidably received in the aperture and is movable therein relative to the housing between first and second positions. The plunger may include a second recess formed therein that cooperates with the first recess to define a cavity when the plunger is in the first position. The slide member slidably engages the plunger for movement relative to the plunger between an extended position in which the slide member extends into the cavity and a retracted position in which the slide member is retracted out of the cavity.