摘要:
Moulding assembly (100) with an inlet (117) for receiving raw material to be ejected, a barrel (112) for gathering and processing the raw material received through the inlet (117), a screw (110) for engaging the raw material in the barrel, a first drive unit (170) configured for rotating the screw (110) in order to grind the raw material into liquid form, where the moulding assembly further comprises a second drive unit (120) configured to displace the screw (110) in a direction essentially perpendicular to the rotation direction in and out of the barrel (112) depending on the pressure in the barrel (112).
摘要:
The present disclosure involves a method and apparatus for attaching two electrical dies by wire bonding and then encasing the assembly in a protective casting that works by arranging two dies into a fixture conducive to wire bonding. Doped epoxy may be immediately dispensed over the assembly to form a near-net-shape protective cover, or Drive Can.
摘要:
Die Erfindung betrifft eine Vorrichtung zur Herstellung von Kunststoffteilen mit jeweils mindestens einem stabförmigen metallischen Einlegeteil, insbesondere medizinische Stechmittel, in einem Spritzgießverfahren, umfassend ein erstes Werkzeughälftenelement und ein zweites Werkzeughälftenelement, wobei zumindest eines der Werkzeughälftenelemente entlang einer Schließrichtung (Z) derart verlagerbar ist, dass die beiden Werkzeughälftenelemente in einer Schließposition zusammen eine abgeschlossene Kavität zum Ausformen eines Kunststoffteils ausbilden, wobei das Einlegeteil, zum Umspritzen mit Kunststoff, zumindest abschnittsweise in die Kavität hineinragend und im Wesentlichen zwischen den beiden Werkzeughälftenelementen in einer Werkzeugtrennebene, welche eine Längsrichtung (X) und eine Breitenrichtung (Y) umfasst, angeordnet ist. Die Vorrichtung zeichnet sich dadurch aus, dass zumindest eines der Werkzeughälftenelemente zumindest ein Fixiermittel aufweist, mittels welchem das Einlegeteil in der Breitenrichtung (Y) fixierbar ist, und das ein Positioniermittel an einem proximalen Ende des Einlegeteils anordenbar ist, durch welches das in Breitenrichtung (Y) fixierte Einlegeteil entlang der Längsrichtung (X) zu einer Spritzposition verlagerbar ist.
摘要:
An injection molding apparatus comprising: a manifold, a nozzle, A distal tip of the nozzle being comprised of a highly heat conductive insert and an insulation cap that is substantially less heat conductive than the insert, the downstream end portion of the insulation cap being disposed between the gate and the downstream end portion of the highly heat conductive insert forming a fluid seal around the gate, a valve pin, wherein when the valve pin is in a gate closed position, an axially interior surface of a fluid exit aperture of the insulation cap surrounds a gap enabling circumferential surface of the valve pin forming a spatial gap immediately upstream of the gate between the interior surface of the fluid exit aperture of the insulation cap and the gap enabling circumferential surface of the valve pin.
摘要:
A method of performing an injection molding cycle in an injection molding apparatus comprising a manifold that receives an injection fluid, the manifold distributing injection fluid to a fluid delivery channel that delivers the injection fluid under an injection pressure to a gate of a mold cavity and a valve pin having an axis and a tip end, the valve pin being slidably mounted for movement along the axis within the fluid delivery channel, the method comprising: drivably interconnecting the valve pin to an actuator in an arrangement wherein the actuator drives the valve pin upstream and downstream along the axis and drives the tip end of the valve pin upstream and downstream between a first closed position where the tip end of the valve pin obstructs the gate to prevent the injection fluid from flowing into the cavity, a full open position where the injection fluid material flows freely without restriction from the tip end of the pin through the gate, and an intermediate position between the first position and the full open position wherein the tip end of the valve pin restricts flow of the injection fluid along at least a portion of the length of the drive path extending between the first closed position and the intermediate position, and, controllably operating the actuator to drive the valve pin to be disposed in a selected intermediate position for a selected period of time during the course of an injection cycle where the tip end of the valve pin restricts flow of injection fluid through the gate to the mold cavity.
摘要:
An apparatus for controlling the rate of flow of a fluid mold material from an injection molding machine to a mold cavity, the apparatus comprising: a manifold an actuator interconnected to a valve pin having a tip end, the actuator moving the valve pin continuously upstream along a. path of travel between a downstream gate closed position and an intermediate upstream gate open position, the downstream gate closed position being a position wherein the tip end of the valve pin obstructs the gate to prevent fluid material from flowing into the mold cavity, the intermediate upstream gate open position being a predetermined position between the downstream gate closed Position and a fully open, end of stroke position upstream of the intermediate upstream gate open position at which the fluid mold material flows at a maximum rate through the gate; a controller interconnected to the actuator that controls movement of the actuator.
摘要:
Disclosed, amongst other things, is: a continuous molding machine, a cam of the continuous molding machine, a post-molding device of the continuous molding machine, a molded article handling device, amongst other things.
摘要:
An injection moulding system (10; 110; 210) of plastic material, comprising: a press (11; 1 11; 211 ) having a first (11 a) and a second (11 b) pressure plate, suitable for closing between them a mould (13; 113; 213), by applying on it a closing force (F), and a distribution and injection assembly (12; 112; 212), suitable for distributing and injecting a fluid plastic material (MP) into the mould (13; 113; 213) and in turn comprising an intermediate hot distribution plate (23; 123), interposed between a bottom plate (21 ) and a nozzle-bearing plate (22), provided for cooperating into contact and in relationship of sliding, along a respective sliding and contact surface (23a), with the end (17a) of one or more injection nozzles (17; 117), fixed on the nozzle-bearing plate (22), in order to distribute the fluid plastic material (MP) to be injected into the mould (13), wherein the distribution and injection assembly (12; 112; 212) is arranged adjacently to and along a side (13c: 113c; 213c), of the mould (13; 113; 213), not associated with the first and the second pressure plate (11 a, 1 1 b), so as not to be subject to the closing force (F) applied by the press (11 ) on the mould, and moreover wherein it (12; 112; 212) is sized (21 a; 121 a) in such way to ensure a perfect sealing against any outflow or leakage toward the outside of the fluid plastic material (MP) which flows, through such sliding and contact surface (23a), from the intermediate hot plate (23) to the injection nozzles (17) for being injected into the mould, despite the distribution and injection assembly (12; 112; 212) is not subject to the action of the closing force (F), applied by the pressure plates (11 a, 1 1 b) of the press (11; 111; 211 ) on the mould (13; 113; 213) during the step of moulding of a piece (P).
摘要:
Provided herein is a system and method for installing subsea insulation on flowlines, connectors and other subsea equipment by a remotely operated vehicle. This system provides a mold designed and built to suit the parameters of the subsea item to be insulated. The mold is installed around the subsea item to be insulated and then injected with a liquid solution of insulation material. The liquid solution is then allowed to solidify, forming a gel molded insulation.