Abstract: An extruding system includes a melting unit configured to convey a polymeric material, a mixing unit configured to mix the polymeric material with a blowing agent to form a mixture, an injection unit configured to inject the mixture, a first flow control element disposed between the melting unit and the mixing unit, and a second flow control element disposed between the mixing unit and the injection unit. A method of extruding includes conveying a polymeric material from a melting unit to a mixing unit, conveying a blowing agent into the mixing unit, mixing the polymeric material with the blowing agent to form a mixture, conveying the mixture from the mixing unit to an injection unit, and discharging the mixture from the injection unit, wherein flow of the polymeric material is controlled by a first flow control element, and flow of the mixture is controlled by a second flow control element.

Abstract: A molding device and an injection molding method thereof are provided. The molding device includes a first mold, a second mold and a sealing ring. The first mold includes a first body and at least one slide. The at least one slide is movably and detachably disposed on the first body, and has an undercut. The injection molding method includes operations of: engaging the first mold with the second mold of the molding device; filling a mold cavity defined by the first mold and the second mold with a gas, wherein the gas is blocked by the sealing ring disposed between the first mold and the second mold; injecting a molding material into the mold cavity; and opening the first mold and the second mold of the molding device.

Abstract: A molding device and an injection molding method thereof are provided. The molding device includes a first mold, a second mold and a sealing ring. The first mold includes a first body and at least one slide. The at least one slide is movably and detachably disposed on the first body, and has an undercut. The injection molding method includes operations of: engaging the first mold with the second mold of the molding device; filling a mold cavity defined by the first mold and the second mold with a gas, wherein the gas is blocked by the sealing ring disposed between the first mold and the second mold; injecting a molding material into the mold cavity; and opening the first mold and the second mold of the molding device.

Abstract: A mechanism for mixing a supercritical fluid and a polymer raw material melt provided by the present invention includes a hot-melting unit, a mixing unit, and a supercritical fluid supplying unit. The mixing unit, independently of the hot-melting unit, receives a polymer melt from the hot-melting unit and a supercritical fluid from the supercritical fluid supplying unit, respectively, and mixes the polymer melt and the supercritical fluid into a homogenous single-phase solution. The hot-melting unit is provided with a pushing member for pushing a polymer raw material. The mixing unit is provided with a mixing rotor for mixing the polymer melt and the supercritical fluid.

Abstract: An extruding system includes a melting unit configured to convey a polymeric material, a mixing unit configured to mix the polymeric material with a blowing agent to form a mixture, an injection unit configured to inject the mixture, a first flow control element disposed between the melting unit and the mixing unit, and a second flow control element disposed between the mixing unit and the injection unit. A method of extruding includes conveying a polymeric material from a melting unit to a mixing unit, conveying a blowing agent into the mixing unit, mixing the polymeric material with the blowing agent to form a mixture, conveying the mixture from the mixing unit to an injection unit, and discharging the mixture from the injection unit, wherein flow of the polymeric material is controlled by a first flow control element, and flow of the mixture is controlled by a second flow control element.

Abstract: A mechanism for mixing a supercritical fluid and a polymer raw material melt provided by the present invention includes a hot-melting unit, a mixing unit, and a supercritical fluid supplying unit. The mixing unit, independently of the hot-melting unit, receives a polymer melt from the hot-melting unit and a supercritical fluid from the supercritical fluid supplying unit, respectively, and mixes the polymer melt and the supercritical fluid into a homogenous single-phase solution. The hot-melting unit is provided with a pushing member for pushing a polymer raw material. The mixing unit is provided with a mixing rotor for mixing the polymer melt and the supercritical fluid.

Abstract: A method for filling polymer blanks into molds and an apparatus thereof. The method includes steps of picking a predetermined amount of blanks formed with predetermined shapes; locating the blanks to fixedly space the blanks from each other by predetermined distances corresponding to the distances between the mold cavities of the molds, in which the blanks are to be filled; and respectively filling the blanks into the mold cavities of the molds. The apparatus includes at least one mold unit having at least one closable mold cavity for receiving a predetermined amount of blanks; and a picking/feeding unit disposed on one side of the mold unit. The picking/feeding unit includes a blank-picking section for picking a predetermined amount of blanks and locating the blanks in predetermined positions. The picking/feeding unit further includes a blank-feeding section for driving the blank-picking section to move and feed the blanks picked by the blank-picking section into the mold cavity.

Abstract: An adjustment structure for mold cavity capacity. The adjustment structure includes a mold having a main body. A mold cavity with a predetermined capacity is defined in the main body for accommodating a blank with a volume corresponding to the capacity of the mold cavity. An adjustment member is disposed on the mold for changing the capacity of the mold cavity so as to change the volume of the blank receivable in the mold cavity.

Abstract: A polymer molding method especially applicable to at least two materials with different physical or chemical properties. In respective procedures, the two different materials are respectively molded into blanks with certain shapes. Then the blanks are together positioned in a product mold cavity. Then a certain heat and pressure are applied to the blanks in the product mold cavity to make the blanks react in the product mold cavity and combine with each other to form a product with desired shape.

Abstract: A blank carrying/filling apparatus including: a bed member having a body section, at least one tunnel with a predetermined diameter extending through the body section from a back face to a front face thereof; at least one blank carrying section for carrying a blank; a thrust body having at least one thrust member slidable disposed in the tunnel and movable between a blank carrying position and a blank releasing position, whereby when the thrust member is positioned in the blank releasing position, the thrust member via physical action force disconnects the blank carrying section and the blank carried by the blank carrying section and releases the blank; and a driving member for forcing the thrust member to move between the blank carrying position and the blank releasing position.

Abstract: A method for filling a blank into a mold. The temperature of the mold is previously risen to a predetermined temperature. When the mold is positioned in a mold-opened position, a fluid is used to cool the surface of the mold cavity of the mold into which the blank is to be filled so as to lower the temperature of the surface of the mold cavity. Then blank is placed into the mold cavity and the mold is positioned in a mold-closed position.

Abstract: A material injection system of a plastic material injection molding machine is disclosed. It includes a base, several molds disposed on the base and a material injection seat X axis and Y axis movably disposed on the base. A material stopping member is disposed on each mold so as to prevent the foam material therein from spilling outside. Each mold is formed with a ventilating opening connected to a vacuum sucking machine for sucking out the air in the mold cavity during injection of the material, whereby the foam material can smoothly flow in the mold cavity without producing any bubble. The material injection nozzle is disposed with a material stopping structure for avoiding leakage of the material. An advancing and a retracting hydraulic cylinders are disposed on the base for eliminating the affection on the accuracy of alignment of the nozzle with the pouring gate.