The present invention relates to a volume pulsed deformation plasticating and conveying method and device by an eccentric rotor. The rotation of the eccentric rotor and the rolling of the rotor in the inner cavity of a stator during constant reverse revolutions cause the volume of the material between the eccentric rotor and the stator to periodically change alternatively along the axial direction and the radial direction of the stator, thereby enabling the volume pulsed deformation plasticating and conveying of the material. The volume pulsed deformation plasticating and conveying device consists of a stator, of which the inner cavity comprises multiple alternatingly disposed spiral segments and straight segments, and an eccentric rotor comprising multiple alternatingly disposed eccentric spiral segments and eccentric straight segments. The eccentric rotor is disposed in the inner cavity of the stator. The eccentric spiral segments and the eccentric straight segments of the eccentric rotor correspond one-to-one with the spiral segments and straight segments of the stator. The present invention can be used as the extruding system of an extruder or be combined with different plunger injection units to form a plasticating injection device of an injection molding machine. The present invention has a short thermo-mechanical distance for the materials, low energy consumption, and wide adaptability.

A manifold with a supply passage for supplying one or more materials. The manifold has a return passage for recirculating the one or more materials. The manifold includes one or more injection valves for filling one or more corresponding mold cavities. The supply passage and the return passage are in fluid communication with the one or more injection valves.

An injection device includes a spline supporting member rotatably supporting a spline shaft and attached to a pressure plate, and a nut supporting member rotatably supporting a spline nut and attached to a rear plate. The spline supporting member is provided with a spline positioning mechanism for adjusting the mounting position of the spline supporting member. The nut supporting member is provided with a nut positioning mechanism for adjusting the mounting position of the nut supporting member. The spline supporting member and the nut supporting member are formed with holes for axial-center checking, rods being inserted through the holes.

A supercritical fluid microcellular injection molding method includes the following steps. Preheating: the feed pipe is preheated to a hot melt temperature of polymer. Feeding: the polymer is poured into the hopper and enters the feed pipe. A metering screw is rotatably received in the feed pipe for forwardly pushing the hot molten polymer when being rotated. Injecting SCF: the SCF is injected into the feed pipe and mixed with the hot molten polymer into a homogeneous monophasic fluid. Quantitative discharge and depressurization: the monophasic fluid flows across a first gear pump and a second gear pump mounted on the front end of the feed pipe. Discharging and molding: the monophasic fluid actuated by the first gear pump and the second gear pump is injected and molded by the die head fixed to the discharge end of the second gear pump.

A plasticization device that plasticizes a material, includes: a drive motor; a rotor that is to be rotated by the drive motor and has a groove-forming surface in which a curved projection strip portion is formed from a peripheral edge of a circular central portion toward an outer periphery of the rotor; a barrel that faces the groove-forming surface and includes a communication hole at a position facing the central portion of the groove-forming surface; and a heating unit that heats the material supplied between the rotor and the barrel, the rotor includes a protrusion protruding from the central portion toward the communication hole, and
0.28?S2/S1?1.03(1), wherein S1 is an area of the central portion and S2 is a maximum area of a cross section of the protrusion along the groove-forming surface.

A plasticization device that plasticizes a material, includes: a drive motor; a rotor that is to be rotated by the drive motor and has a groove-forming surface in which a curved projection strip portion is formed from a peripheral edge of a circular central portion toward an outer periphery of the rotor; a barrel that faces the groove-forming surface and includes a communication hole at a position facing the central portion of the groove-forming surface; and a heating unit that heats the material supplied between the rotor and the barrel, the rotor includes a protrusion protruding from the central portion toward the communication hole, and
0.28?S2/S1?1.03(1), wherein S1 is an area of the central portion and S2 is a maximum area of a cross section of the protrusion along the groove-forming surface.

A method is provided of manufacturing a biodegradable healthcare product for environmental purposes such as reducing waste. The main ingredients include a quantity of potato starch, a quantity of corn starch, and a quantity of avocado seeds. The quantity of potato starch, the quantity of corn starch, and the quantity of avocado seeds are all pulverized. The quantity of potato starch, the quantity of corn starch, and the quantity of avocado seeds are amalgamated into a quantity of biodegradable powder. A molding process is executed by manufacturing a sterile healthcare product from the quantity of biodegradable powder. The sterile healthcare product can be any type of healthcare product such as, but not limited to, a pharmaceutical product bottle, a nutraceutical product bottle, a one test kit container, a band-aid container, a dental floss container, a swab container, a syringe, an inhaler, a dropper, or a tampon.

A method is provided of manufacturing a biodegradable healthcare product for environmental purposes such as reducing waste. The main ingredients include a quantity of potato starch, a quantity of corn starch, and a quantity of avocado seeds. The quantity of potato starch, the quantity of corn starch, and the quantity of avocado seeds are all pulverized. The quantity of potato starch, the quantity of corn starch, and the quantity of avocado seeds are amalgamated into a quantity of biodegradable powder. A molding process is executed by manufacturing a sterile healthcare product from the quantity of biodegradable powder. The sterile healthcare product can be any type of healthcare product such as, but not limited to, a pharmaceutical product bottle, a nutraceutical product bottle, a one test kit container, a band-aid container, a dental floss container, a swab container, a syringe, an inhaler, a dropper, or a tampon.

A plasticizing device includes: a flat screw having a groove formation surface in which a spiral groove is formed and configured to rotate about a rotation axis by a motor; a barrel having a facing surface facing the groove formation surface in a direction of the rotation axis; a heater configured to heat the material supplied between the groove formation surface and the facing surface; and a screw case accommodating the flat screw and having a supply port through which the material is supplied to the groove. The flat screw includes a first side surface in which an introduction port for introducing the material from the supply port into the groove is partially formed, and a second side surface provided on a side farther away from the barrel than the first side surface. A first distance which is a shortest distance between the first side surface and the screw case is larger than a second distance which is a shortest distance between the second side surface and the screw case, and a recessed portion is formed in the second side surface.

A material feeding device includes a plasticizing unit configured to plasticize resin pellets to generate a plasticized material, a nozzle that has a nozzle opening and is configured to send out the plasticized material from the nozzle opening to the outside, a flow path that communicates with the nozzle opening and through which the plasticized material flows, a suction unit including a plunger configured to suction the plasticized material into a first cylinder coupled to the flow path, and a plunger motor configured to drive the plunger, and a detection unit configured to detect a position of the plunger in the first cylinder.