Abstract:
Method and apparatus for controlling an injection molding machine having a first surface and a second surface includes a piezo-ceramic sensor configured to be disposed between the first surface and a second surface. The piezo-ceramic sensor is configured to sense a force between the first surface and the second surface, and to generate corresponding sense signals. Wiring structure is coupled to the piezo-ceramic sensor and is configured to carry the sense signals. Preferably, a piezo-ceramic actuator is also disposed between the first surface and a second surface, and is configured to provide an expansive force between the first surface and a second surface in accordance with the sense signals.
Abstract:
An optical connector ferrule forming metal mold (1) for forming an optical connector ferrule having a plurality of optical fiber holes, comprising a metal cope (10), a metal drag (11), and a metal core (12), the metal core (12) further comprising a plurality of optical fiber hole forming pins (126) for forming the optical fiber holes, the metal drag (11) further comprising a projected part (114) for forming the window hole part of the optical connector ferrule, wherein the optical fiber hole forming pins (126) projected from the metal core (12) are fixed by insert holes (115) passed through the projected part (114) and V-grooves (113).
Abstract:
The invention concerns in particular a mould for injection moulding of a flexible tube, said mould comprising as moulding tools, a nozzle receptacle (1), an impression (2) and a core (3), housed in a stack of plates (P4, P5, P6, P7). The invention is characterised in that said moulding tools (1, 2, 3) have pairs of respective conical support surfaces (101, 201, 301, 102, 302), through which the tools are centred and aligned with one another, each support surface being formed by a portion of tools deprived of transverse mobility.
Abstract:
The dimensions of an injected molded hollow plastic product are controlled and the separative force exerted against mold sections (10, 12) during molding of the product are reduced by injecting plastic material continuously from a gate (30) into a mold cavity (16) having flow channels (19), extending through the cavity region until the mold cavity is filled with said injected plastic material, with said injection being under such conditions of injection pressure, injected plastic material temperature, mold cavity temperature, flow channel length, distance between flow channels, flow channel thickness and wall thickness in a thin-cavity region between flow channels that initially injected plastic material solidifies in the thin-cavity regions to thereby stabilize one mold section being filled with the injected plastic material, and to thereby reduce said separative force.
Abstract:
A method of and means for manufacturing an article, such as a toothpaste tube having a captive cap, by injection moulding in which an elongated core (2) is projected into the hollow of a die (1) and engaging an aligning surface (5) on the core (2) with a mating aligning surface (6) on the die (1) at commencement of the injection moulding cycle and during continuation of the moulding cycle disengaging the aligning surfaces to form a membrane (33) between the disengaged surfaces.
Abstract:
An insert assembly (10) for the purpose of an injection mold (100) for manufacturing a first casting mold half (202) of a casting mold (200) for manufacture of an ophthalmic device, wherein the insert assembly (10) is receivable in an injection mold half of the injection mold (100) and wherein the insert assembly (10) comprises an insert assembly end surface (14, 18, 22, 26) which bounds an injection mold cavity (106) of the injection mold (100) for forming the first casting mold half (202). The insert end surface is provided with at least one notch (40, 42) which forms a bounding structure cavity for forming a bounding structure (208, 210) which is an integral part of the first casting mold half (202) to be formed with the injection mold (100) and which, after placement of a second casting mold half (204) on the first casting mold half (202), bounds at least one haptics cavity (212) which links up with a lens cavity(206).
Abstract:
This method for manufacturing a stopper (1) for closing a neck of a container comprises a first step of moulding the stopper (1) in one piece. The stopper (1) includes a sealing membrane (11) provided with a central opening (13), a tubular stem (21) centred on an axis (X2) and extending around the central opening from the sealing membrane (11), and a capsule (23) connected, by a tear wall, to a free end (29) of the stem. The capsule (23) is designed to be wedged in the stem (21) in a sealing manner. The method comprises a second step in which, while the tear wall is intact, a force, in line with the axis (X2), is applied to the stopper (1) so as to break, in one and the same relative movement of the capsule (23) with respect to the remainder of the stopper, the tear wall (62) and move the capsule (23) inside the stem (21) until it is wedged in the stem (21).
Abstract:
A method of injection moulding a multi-planter having multiple apertures in the sides thereof, and an cap piece integrally formed with the tubing, the method characterised by the step of inserting supports through the apertures to provide support for the internal core portion of the tool used in the injection moulding.
Abstract:
An injection molding tool having a collapsible core which is movably mounted with respect to a mold plate. The mold plate is movably mounted with respect to a stripper plate that can be used to eject or remove the molded part from the injection molding tool. A retainer is fixedly positioned with respect to the mold plate so that it contacts at least a portion of a molded part when in a mold position. The retainer can be a sleeve with a through opening within or through which the collapsible core is mounted.