Abstract: A molding device and a molding method are disclosed. The molding device includes an upper mold, a lower mold and a middle mold. The lower mold is disposed below the upper mold. The middle mold is disposed between the upper mold and the lower mold. The middle mold is moveably attached to the lower mold through a position control mechanism.

Abstract: A molding method includes providing a molding device, wherein the molding device includes a first mold and a second mold corresponding to the first mold; moving the first mold towards the second mold to form a first mold cavity; supplying a gas to the first mold cavity; injecting a material into the first mold cavity; and moving the first mold away from the second mold to form a second mold cavity and discharge at least a portion of the gas out of the molding device, wherein a first volume of the first mold cavity is substantially less than a second volume of the second mold cavity.

Abstract: An injection molding system includes an extruding system. The extruding system includes a mixing unit configured to receive the polymeric material from the melting unit and configured to mix a polymeric material with a blowing agent and to form a mixture, wherein the mixing unit includes a mixing rotor disposed in a hollow mixing cartridge, and a ratio of a shortest distance between an inner sidewall of the hollow mixing cartridge and the mixing rotor to a diameter of the mixing rotor is in a range of 1:1500 to 1:4500. The injection molding system further includes a discharging channel communicable with the extruding system, a molding device configured to receive the mixture from the discharging channel, and a supporting device configured to facilitate an engagement of the discharging channel and the molding device, the supporting device includes a first element protrudes from the extruding system and a second element disposed on 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 molding method includes providing a molding device, wherein the molding device includes a mold cavity, a feeding port in communication with the mold cavity, and a junction point in connection with the mold cavity; engaging an outlet of an injector to the feeding port; injecting a molding material including a blowing agent into the mold cavity from the feeding port by the injector; and injecting a gas into the mold cavity through the junction point to increase a pressure inside the mold cavity to a predetermined pressure for maintaining the blowing agent in a supercritical state.

Abstract: An injection-molding method includes providing an extruding system configured to produce a mixture, a first discharging channel including a first outlet, a second discharging channel including a second outlet, and a molding device including a space and first and second feeding ports communicable with the space and respectively engageable with the first and second outlets; engaging the first outlet with the first feeding port; engaging the second outlet with the second feeding port; injecting the mixture through the first outlet and the first feeding port; and injecting the mixture through the second outlet and the second feeding port.

Abstract: An injection-molding system includes an extruding system configured to produce a mixture; discharging channels communicable with the extruding system, wherein each of the discharging channels includes an outlet; and a molding device configured to receive the mixture from the outlets and including a space and feeding ports correspondingly engageable with the outlets. An injection-molding method includes providing an extruding system configured to produce a mixture, a first discharging channel including a first outlet, a second discharging channel including a second outlet, and a molding device including a space and first and second feeding ports communicable with the space and respectively engageable with the first and second outlets; engaging the first outlet with the first feeding port; engaging the second outlet with the second feeding port; injecting the mixture through the first outlet and the first feeding port; and injecting the mixture through the second outlet and the second feeding port.

Abstract: A pressure-controlling foam molding method and a device thereof. The device includes a first mold and a second mold positioned on different levels. The first mold molds polymer material into a blank and is opened in a high pressure environment to limit the extent to which the molded blank foams. The foamed blank is compressed to have a volume approximately equal to or smaller than that of the second mold cavity of the second mold. Then the foamed blank is moved from the first mold pit of the first mold into the second mold pit of the second mold along a moving axis parallel to gravity line. Prior to transfer, with the plane on which the opening of the second mold pit is positioned as a projection face, the shape and position of the opening of the second mold pit correspond to vertical projective shape and position of the blank.

Abstract: A mechanism for adjusting relative positions of multiple injection nozzles of an injection apparatus. The mechanism includes a guide section serving as a rail horizontally extending in a predetermined direction; a first injection section having at least one injection nozzle and slidably disposed on the rail, whereby the first injection section is guidable by the rail to horizontally move along X-axis defined by the rail; and a second injection section having at least one injection nozzle and slidably disposed on the rail. The second injection section is spaced from the first injection section by a distance and guidable by the rail to horizontally move along X-axis defined by the rail. The second injection section is further vertically movable within a predetermined range of height along Y-axis normal to X-axis.

Abstract: An airtight mechanism of a mold-holding unit for forming a vacuum environment around a held mold, including: a base section; an elongated support section, one end of the support section being vertically fixedly connected with the base section; a top section bridged between the other end of the support section above the base section and in alignment therewith, a mold-holding space being defined between the top section and the base section, in which the mold is held; an airtight tubular chamber reciprocally linearly movable along an axes of the support section between an airtight position and an open position, whereby when positioned in the airtight position, the airtight tubular chamber is positioned in the mold-holding space around the held mold; a first closed end piece disposed on the base section and having a first closed connecting loop, whereby one end of the airtight tubular chamber in the airtight position coaxially airtight abuts against the first closed connecting loop; and a second closed end piece

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.