A cooling plate assembly includes (a) a cooling plate having a plate front surface; (b) an air channel extending within a thickness of the cooling plate; (c) a plate bore extending into the cooling plate from the plate front surface for providing fluid communication between the air channel and a cavity of a cooling tube mountable to the cooling plate; and (d) a valve within the plate bore. The valve is movable between a first position in which a first air flow passage extending within the plate bore is open for conducting air from the cavity to the air channel, and a second position in which the first air flow passage is obstructed to reduce air flow between the cavity and the air channel, and in which a second air flow passage extending within the plate bore is open for conducting air from the air channel to the cavity.

A cooling plate assembly includes (a) a cooling plate having a plate front surface; (b) an air channel extending within a thickness of the cooling plate; (c) a plate bore extending into the cooling plate from the plate front surface for providing fluid communication between the air channel and a cavity of a cooling tube mountable to the cooling plate; and (d) a valve within the plate bore. The valve is movable between a first position in which a first air flow passage extending within the plate bore is open for conducting air from the cavity to the air channel, and a second position in which the first air flow passage is obstructed to reduce air flow between the cavity and the air channel, and in which a second air flow passage extending within the plate bore is open for conducting air from the air channel to the cavity.

A device for producing a silicone rubber cupping appliance is provided. The device includes a nozzle, an internal mould core, a separable slide comprising at least two separable slide blocks; and a blowing-demoulding unit. A mould cavity used for moulding the silicone rubber cupping appliance is formed between the slide and the internal mould core. One end of the nozzle is connected to a channel that transports liquid silicone rubber material, and another end of the nozzle is connected to the mould cavity. The blowing-demoulding unit is connected to the mould cavity through a blow duct opening which is set at a contact surface of the internal mould core and the mould cavity.

A system for injection molding a part includes a plate, first and second primary mold slides, first and second secondary mold slides and at least a first core post. The first and second primary mold slides define an exterior of a first portion of a molded part and are movable relative to each other between an open position and a closed position. The first and second secondary mold slides define an exterior of a second portion of the molded part and are movable relative to each other between an open position and a closed position. A first core post defines an interior of the first portion of the molded part. The first and second secondary mold slides are operative to secure the molded part as the first and second primary mold slides are moved from their closed position to their open position, as the molded part is expanded under a source of pressurized air and as the first core post is withdrawn from an interior of the molded part.

A device for venting and ejection, and an injection mold for plastic injection are provided. The device includes a gas permeable layer and a gas storage chamber. The gas permeable layer is arranged at the end of a filling area in the injection mold, is made of porous metal materials used for the gas to pass through. The gas storage chamber is arranged on the side of the gas permeable layer opposite the mold cavity, and a cavity which only communicates with the pores is arranged in the gas storage chamber. During injection molding, after raw materials enter the mold cavity, gas in the mold cavity is compressed by the raw materials and passes through the gas permeable layer to achieve exhaust, to facilitate filling of the raw materials. The compressed gas layer can be stored in the cavity, and then released after the injection is completed.

A device for venting and ejection, and an injection mold for plastic injection are provided. The device includes a gas permeable layer and a gas storage chamber. The gas permeable layer is arranged at the end of a filling area in the injection mold, is made of porous metal materials used for the gas to pass through. The gas storage chamber is arranged on the side of the gas permeable layer opposite the mold cavity, and a cavity which only communicates with the pores is arranged in the gas storage chamber. During injection molding, after raw materials enter the mold cavity, gas in the mold cavity is compressed by the raw materials and passes through the gas permeable layer to achieve exhaust, to facilitate filling of the raw materials. The compressed gas layer can be stored in the cavity, and then released after the injection is completed.

The present invention discloses a formula of a cosmetic optical silicone massage head and a preparation process therefor. The formula of the cosmetic optical silicone massage head includes a component A and a component B; where the component A includes the following raw materials in parts by weight: 91.8% of polymethylsiloxane, 4.95% of hydroxy silicone oil, 2.75% of stearic acid, and 0.5% of platinum catalyst; and the component B includes the following raw materials in parts by weight: 91.8% of polymethylsiloxane, 4.2% of hydroxy silicone oil, 1.6% of hydrogen silicone oil, 2.3% of stearic acid, and 0.1% of ethynylcyclohexanol. The formula of the cosmetic optical silicone massage head according to the present invention has good fluidity, high transparency, high strength, high tensile strength, and good tear resistance.

The present invention discloses a formula of a cosmetic optical silicone massage head and a preparation process therefor. The formula of the cosmetic optical silicone massage head includes a component A and a component B; where the component A includes the following raw materials in parts by weight: 91.8% of polymethylsiloxane, 4.95% of hydroxy silicone oil, 2.75% of stearic acid, and 0.5% of platinum catalyst; and the component B includes the following raw materials in parts by weight: 91.8% of polymethylsiloxane, 4.2% of hydroxy silicone oil, 1.6% of hydrogen silicone oil, 2.3% of stearic acid, and 0.1% of ethynylcyclohexanol. The formula of the cosmetic optical silicone massage head according to the present invention has good fluidity, high transparency, high strength, high tensile strength, and good tear resistance.

An injection mold apparatus of a pressure vessel includes an upper mold including an internal surface in a shape corresponding to a shape of an external surface of the pressure vessel provided with a nozzle with a closed inlet; a lower mold including an external surface in a shape corresponding to the shape of the internal surface of the pressure vessel, engaged with the upper mold, and formed with an air injection passage therein; an ejector injecting air through the air injection passage between the lower mold and the taken-out pressure vessel; an air injection rate setting device configured for controlling an injection rate of the air injected between the lower mold and the pressure vessel using the ejector; and a pneumatic controller interlocking with the air injection rate setting device and controlling a pressure of air injected.

An injection mold apparatus of a pressure vessel includes an upper mold including an internal surface in a shape corresponding to a shape of an external surface of the pressure vessel provided with a nozzle with a closed inlet; a lower mold including an external surface in a shape corresponding to the shape of the internal surface of the pressure vessel, engaged with the upper mold, and formed with an air injection passage therein; an ejector injecting air through the air injection passage between the lower mold and the taken-out pressure vessel; an air injection rate setting device configured for controlling an injection rate of the air injected between the lower mold and the pressure vessel using the ejector; and a pneumatic controller interlocking with the air injection rate setting device and controlling a pressure of air injected.