摘要:
A plasticizing device includes a rotor which has a groove forming surface provided with a groove, which rotates centering on a rotational axis, and a side surface of which is provided with a supply port communicated with the groove, a barrel which has an opposed surface opposed to the groove forming surface in a direction in which the rotational axis extends, and which is provided with a communication hole from which a material plasticized outflows, a heating unit configured to heat the material supplied via the supply port, and a housing configured to house the rotor, wherein the housing is provided with a first supply path and a second supply path configured to supply the material to the supply port.
摘要:
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.
摘要:
A mold apparatus for two-color molding enabling the use of a general-use mold apparatus with a short support sprue and simple structure, having a fixed side mold, a movable side mold freely openable and closable with respect to the fixed side mold, and a movable partitioning member which is arranged at least at one of the fixed side mold and the movable side mold and partitions a space for molding two types of thermoplastic resin into a first space for molding a first thermoplastic resin and a second space for molding a second thermoplastic resin, wherein a compact injection molding unit injecting the first thermoplastic resin is built-in, and a nozzle of a compact injection molding unit is made to directly adjoin the first space.
摘要:
A HEATABLE DUCT DEFINES A PASSAGE OF ANNULAR CROSS-SECTION. A ROTARY PISTON FEEDER HAS AN OUTLET CONNECTED TO SAID PASSAGE. SAID FEEDER IS OPERABLE TO FORCE SAID MATERIAL THROUGH SAID PASSAGE. SHAPING MEANS ARE ARRANGED TO RECEIVE SAID MATERIAL FROM SAID PASSAGE AND TO SHAPE SAID MATERIAL.
摘要:
A plasticizing device includes a first flat screw including a first groove forming surface in which a groove is formed and configured to rotate; a second flat screw including a second groove forming surface in which a groove is formed and configured to rotate; a barrel including a first facing surface facing the first groove forming surface and a second facing surface facing the second groove forming surface and formed with a communication hole through which a plasticized material is fed outside; and a heating section configured to heat the material supplied to the grooves of the first flat screw and of the second flat screw.
摘要:
A plasticizing unit for micro injection molding machine, associated with an injection machine, is comprised of a housing and a disk-like rotor, wherein the disk-like rotor is installed inside the housing and kept rotating continuously. When plastic or resin pellets is fed into the housing from an inlet, a heating and mixing process is performed between the disk-like rotor and the inner wall of the housing; and then, the pellets would be transferred into a molten state as non-Newtonian fluid; therefore, while the first vertical normal force in the fluid is greater than the centrifugal force thereof, the molten fluid shall not moves outwardly but would flow inwards to the center of the disk-like rotor by rod climbing effect; therefore, an extrusion pressure would be built up at the disk-like rotor center, by which the molten and well mixed plastic or resin can be delivered from the outlet of the housing to the heating cylinder of the micro injection molding machine, injection molding can be completed through an injection plunger.
摘要:
An apparatus for extruding, injection molding, blow molding and transfer molding plastic materials comprises a feed screw rotating in a barrel and feeding plastic material over a revolving member surrounded by an increasing and a decreasing housing with a discharge opening at its center. The revolving member has an increasing surface with an axis which has a radial distance to the center line of the increasing housing. The revolving member has a subsequent decreasing surface with that axis which has a radial distance to the middle line of the decreasing housing diametral to the radial distance from the center line of the increasing housing surface to that axis of revolution, so that the forces developed in an area of decreasing surfaces are compensated by forces in a diametral area of increasing surfaces. The increasing surfaces diverge from each other as do the decreasing surfaces. The increasing housing, the decreasing housing and the revolving member are axially movable relatively to each other to vary the spaced relationship between their surfaces. For extrusion, an extrusion barrel is attached to the decreasing housing, and an extrusion screw to the revolving member. For molding operations, an injection screw or an injection piston extends through a bore in the revolving member coaxial with the member''s axis of revolution.
摘要:
A PROCESS AND APPARATUS FOR SEPARATING A COMPONENT FROM A SOLUTION BY CIRCULATING HOT LIQUID TO BE DISTILLED AND, IN COUNTERCURRENT THERETO, COOLING LIQUID AT RESPECTIVELY OPPOSIT SIDES OF A GASEOUS REGION SITUATED BETWEEN A MEMBRANE WHICH IS PERMEABLE TO THE VAPOR OF THE COMPONENT TO BE SEPARATED AND A COLD WALL ON WHICH THAT VAPOR IS TO CONDENSE.
摘要:
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.
摘要:
A plasticizing device includes a driving motor, a rotor rotated around a rotation axis by the driving motor and having a groove forming surface on which a groove is formed, a barrel having an opposed surface opposed to the groove forming surface, a communication hole into which a plasticized material flows being provided in the barrel, a housing section housing the rotor, a first restricting section fixed to the rotor and having a first contact surface facing the barrel side, and a second restricting section fixed to the housing section, opposed to the first contact surface, and having a second contact surface contactable with the first contact surface. Movement of the rotor along the rotation axis is restricted by the first restricting section and the second restricting section. The groove forming surface is separated from the opposed surface at a predetermined interval in a state in which the first contact surface and the second contact surface are in contact.