Abstract: An injection mold assembly for injection molding an object includes a first mold tool having a first tool surface and a second mold tool having a second tool surface. The first and the second tool surfaces are cooperatively configured to define a mold cavity between the tool surfaces for an injection molding of an object. The first mold tool has a tool element with a first side that has the first tool surface, and with a second side opposite the first side. Multiple fins extend from the second side of the tool element. A base supports the fins. The tool element, the fins and the base define a coolant flow cavity at the second side of the tool element. A method of designing the mold assembly is also disclosed.

Abstract: A method for integrally forming a sole with hobnails includes the following steps: providing a mold assembly, the mold assembly includes a sole forming member and a hobnail forming member, the hobnail forming member is movable with respect to the sole forming member; forming of sole and hobnails, injecting plastic material into the mold cavity to integrally form the sole and a hobnail; demolding the hobnail, moving the hobnail forming member with respect to the sole forming member to create a buffer space between the hobnail and the hobnail forming member; and demolding of the sole, taking the sole with the hobnail obtained by the previous step out of the mold assembly, wherein an arc-shaped paw portion of the hobnail is bent through the buffer space and then demolded.

Abstract: A blow mold for PET bottles has the inner surface which contacts the hot PET during the blowing operation, coated with a layer of ceramic material having a nanometric thickness, of which at least one thickness layer is AI2O3 and/or TiO2 deposited by ALD technique. Due to this technique, the PET preforms are subject to less friction during the contact with the interior of the mold.

Abstract: A method for molding amorphous polyether ether ketone including steps of preparing a molten mass including polyether ether ketone, cooling a mold assembly to a temperature of at most about 200° F., and injecting the molten mass into the cooled mold assembly.

Abstract: A method of injection molding of plastic materials into a cavity of a mold with a molding apparatus including a distributor of the pressurized fluid plastic material connected to at least one injector having a pin valve displaceable between a fully closed position and an open position. The method includes a filling step following displacement of the pin valve from the fully closed position to the open position, a packing step of the pressurized plastic material keeping the pin valve in the open position, and a step of displacement and maintenance of the pin valve in at least one partially closed intermediate position prior to its complete closure.

Abstract: An injection molding machine that uses a mold and a native controller to operate according to an original mold cycle to mold plastic objects is retrofitted with a retrofit controller; the retrofitted machine uses the mold and the retrofit controller to operate according to a retrofit mold cycle to mold plastic objects. The retrofit mold cycle has a maximum injection pressure that is less than a maximum injection pressure of the original mold cycle. The retrofit mold cycle can also have more constant injection pressures than the original mold cycle.

Abstract: A thin type injection molding skin manufacturing apparatus in which a mold movable part moves to be separated from a mold fixing part at a time of taking out a skin to open a mold, may include a holder part cavity for molding a holder part formed integrally with the skin, which is formed inside the mold fixing part and a fixing part slider capable of elastically pressing the holder part molded in the holder part cavity installed on the end of the holder part cavity, and as a result, the fixing part slider presses and holds the holder part molded integrally with the skin when the mold movable part moves to be separated from the mold fixing part.

Abstract: An injection molding machine that uses a mold and a native controller to operate according to an original mold cycle to mold plastic objects is retrofitted with a retrofit controller; the retrofitted machine uses the mold and the retrofit controller to operate according to a retrofit mold cycle to mold plastic objects. When molding according to the retrofit mold cycle, the injection molding machine uses lower temperatures, when compared to molding according to the original mold cycle.

Abstract: An injection molding system, to produce fiber-reinforced plastics material parts, has an injection molding device with a housing and a housing bore formed therein. A screw shaft, which is rotatably drivable about a rotational axis and can be displaced along the rotational axis, is arranged in the housing bore to melt and introduce plastics material into a mold. For feeding fibers, the injection molding system furthermore has a feed device, which is configured in such a way that cut fibers can be fed through a feed opening directly into the housing bore. The injection molding system according to the invention allows simple and flexible production of fiber-reinforced plastics material parts.

Abstract: A method is provided of cleaning of a portion of a mold component, the portion of the mold component including a passage configured, in use, to allow passage of fluid and to prevent passage of melt, the method comprising: entering the mold component into a cleaning configuration, whereby a portion of the passage becomes part of a molding surface; performing a molding cycle to fill in at least the portion of the passage with molding material for incorporation and removal of a residue there from. Also provided is a mold having a first mold half and a second mold half, the halves being movable relative to each other. A mold shut height adjustment apparatus can provide for a change in the mold shut height.

Abstract: Disclosed herein is a method of injection molding at low, substantially constant melt pressures. Embodiments of the disclosed method now make possible a method of injection molding that is more energy—and cost—effective than conventional high-velocity injection molding processes. Embodiments of the disclosed method surprisingly allow for the filling of a mold cavity at low melt pressure without undesirable premature hardening of the thermoplastic material in the mold cavity and without the need for maintaining a constant temperature or heated mold cavity. Heretofore, it would not have been expected that a constant pressure method could be performed at low pressure without such premature hardening of the thermoplastic material when using an unheated mold cavity or cooled mold cavity.

Abstract: A fixed platen of an injection molding machine is provided with a first leg protruding at a substantially central portion of a lower part and secured to a base frame and second legs protruding left and right. Each of the second legs is provided with a thin portion thinner than the fixed platen. Thus, a deformation difference between the upper and lower sides of the fixed platen caused during nozzle touch operation or when the fixed platen is subjected to a mold clamping force can be reduced.

Abstract: An injection molding system configured to complete molding by sequential injection molding by a plurality of injection devices, a data acquisition unit is configured to acquire an operation data, a count value of an injection molding number, and identification information of the injection device, and an injection molding number setting unit is configured to set the count number of the injection molding number stored in the injection molding number storing unit of each injection device composing the plurality of the injection devices to be same number, when the injection molding system begins the injection molding.

Abstract: Disclosed herein are methods and systems for the preparation of a co-injection molded multilayer plastic article. Some methods include co-extruding a combined polymeric stream having an interior core stream encased by an inner stream and an outer stream. One or more pulses in a thickness of the interior core stream create portions of an edge of the outer flow stream flowing along different streamlines. A first portion of an outer edge of the interior core stream flows beyond a second portion of the outer edge thereby forming one or more cohesion members that physically interlock the interior layer with the inner layer, with the outer layer or with both. Some embodiments reduce or eliminate a need for addition of an adhesive in the composite stream to prevent delamination of layers of the resulting multilayer plastic article. In some embodiments, cohesion members may be employed to produce a desired cosmetic effect in a resulting article.

Abstract: An injection molding machine that uses a mold and a native controller to operate according to an original mold cycle to mold plastic objects is retrofitted with a retrofit controller; the retrofitted machine uses the mold and the retrofit controller to operate according to a retrofit mold cycle to mold plastic objects. When molding according to the retrofit mold cycle, the injection molding machine can obtain a faster cycle time.

Abstract: An injection mold assembly for a high output consumer product injection molding machine, the injection mold assembly having a simplified cooling system that is an evaporative cooling system or a cooling system including a hazardous, dangerous, or expensive cooling fluid. The simplified cooling system has a cooling fluid channel that is confined to a mold support plate.

Abstract: There is a molding assembly that comprises a jaw holding assembly having a base member that is joined to a workpiece locating member. The workpiece locating member is joined to a riser member, and a rail is mounted on the riser member and a carriage is supported on the rail. The molding assembly includes a jaw holder that is mounted on the carriage, and the jaw holder supports first and second forming dies, and each has an internal rib that abut one another when the first and second dies are brought together. Together the dies form an elliptical rib having an elliptical shaped curved surface. A workpiece having an O-ring recess and parting line protrusions is positioned between the first and second forming dies, and the dies are heated and melt the parting line protrusions. An O-ring is disposed in the O-ring recess to form a leak proof seal.

Abstract: A molding machine includes; a fixed platen capable of having a fixed mold attached thereto; a moving platen capable of having a moving mold attached thereto; a mold clamping mechanism clamping the moving mold and the fixed mold with each other by moving the moving mold; a driving unit operating the mold clamping mechanism; and a control unit controlling the driving unit, wherein the control unit compensates an operation loss of the driving unit occurring from an operation start of the driving unit to an operation start of the moving mold to set the moving mold at a desired position.

Abstract: A molding injection pressure Pi with which a parting opening Lm is formed between a movable mold 2m and a fixed mold 2c during injection-filling and which allows formation of a good molded article is obtained and set in advance. A molding clamping force Pc that allows formation of a good molded article is obtained and set in advance. During production, a mold clamping device Mc is clamped with the molding clamping force Pc, and an injection device Mi to apply the molding injection pressure Pi as a limit pressure Ps is driven to injection-fill a mold 2 with resin R. A parting opening detector 3 that detects the parting opening Lm is provided. During production, reset control is executed to reset the parting opening detector 3 to zero if reset timing tr set in advance has come at least on condition that given preparation for injection is completed after clamping. The reset timing is set in a range covering a given period Zs before injection start time and the given period Zs after the injection start time.

Abstract: The injection molding apparatus is provided for making highly accurate optical parts having structured reflective or deflecting optical surfaces. The apparatus includes a removable mold insert made of two or more mold insert segments. The mold insert segments are juxtaposed at mating lateral planar surfaces to form a reversed structured surface. The mold insert segments also includes a gas venting circuit having conduits formed when the mold insert segments are juxtaposed. A cooling circuit is provided in the mold insert segments.