Abstract:
An inkpad holder for arrangement in an insertion compartment of a self-inking stamp includes a one-piece body having a bottom and walls projecting therefrom which delimit a receiving space for receiving an inkpad. At least one wall of the inkpad holder has a retaining web protruding into the receiving space in order to retain the inkpad, the retaining web extending over the entire length of the wall.
Abstract:
A movable side die of a molding die includes a movable side sleeve and a movable side molding die unit which is accommodated in the movable side sleeve, and molds a molded article together with a fixed side molding die. The movable side die further includes a projecting mechanism which detachably abuts on a part of a proximal end surface of the movable side molding die unit so that a distal end surface of the movable side molding die unit is projected from a distal end surface of the movable side sleeve toward the fixed side molding die, and projects the movable side molding die unit toward the fixed side molding die to the movable side sleeve from an abutting state.
Abstract:
An injection molding tool for molded-in-color injection molding is disclosed. The tool includes a first mold half that includes a mold cavity, a second molding half that includes a molding core, an ejector pin fluidly associated with the first mold half, and a gas removal vacuum system fluidly associated with the ejector pin. The first mold half and the second mold half meet at a parting line that is free of vents. In operation, the two halves are brought together, defining a mold cavity therebetween. The gas removal vacuum system is activated to remove any air that is trapped between the two halves. Once the trapped air has been removed, an article-forming, polymerizable resin is injected into the mold cavity. The gas removal vacuum system is again operated to remove gas generated by the polymerizable resin during the injection process.
Abstract:
Technique to provide a molding die which can easily release a minute optical element in a state of favorable surface accuracy, while bending or rupture of a gate portion attached to the optical element is prevented. By making a first outer circumferential transfer surface 21A of a fixed die 20 and a first gate-forming surface 31A flush with each other, a notch shape is not formed on a portion M1 connecting an outer circumferential portion FL on the fixed die 20 side and a gate portion GP. Furthermore, by pushing out the runner portion RP at the same angle as a taper angle α of a side-surface transfer surface 23A on a second gate-forming surface 32A side, bending deformation or the like of the gate portion GP which can occur when being pushed out to a direction perpendicular to a mold mating surface PL1 can be prevented.
Abstract:
A method of manufacturing a microfluidic device comprises moulding a substrate using a master die having at least one outer stepped formation; and forming at least one microstructured formation having an outer rim, the depth of the outer rim being shallower than that of the microstructured formation.
Abstract:
A pin having a light guide for an injection mold includes an outer sleeve having a hollow portion, an inner sleeve fixed to the hollow portion of the outer sleeve, a bundle sleeve fixed to a hollow portion of the inner sleeve, a bundle fiber fixed to a hollow portion of the bundle sleeve. A leading end portion of the bundle sleeve has a substantially cone-shaped caulked portion. A portion of the hollow portion of the inner sleeve which is brought into contact with the cone-shaped caulked portion of the bundle sleeve has a tapered shape that coincides with the shape of the portion of the bundle sleeve. A shoulder portion is formed at a rear end portion of the hollow portion of the outer sleeve and a rear end of the inner sleeve is engage with the shoulder portion.
Abstract:
An insulating plate (20) made of synthetic resin for transferring heat transferred from conductors to nuts (10) to a heat sink (40) is provided with nut accommodating recesses (21) for accommodating the nuts (10). Each nut accommodating recess (21) includes a bottom plate (22) to be sandwiched between the nuts (10) and the heat sink (40) and a surrounding wall (23) vertically extending from the bottom plate (22) to surround the side surface of the nut (10). The surrounding walls (23) are provided with first and second pressing surfaces (28, 29) to be pressed by ejector pins (83).
Abstract:
A burden of exchanging ejector rods is reduced in an injection molding machine when exchanging rods during exchange of a die. A plurality of rod insertion holes are formed so as to pierce through a movable platen. A plurality of ejector rods are inserted into rod insertion holes so as to slide freely therein. An ejector plate is disposed at the rear side of the movable platen. In a plurality of the ejector rods, a plurality of base rods are inserted into rod insertion holes so as to slide freely therein. Their base end portions are fixed to the ejector plate. Detachable rods are removably stuck with magnetism to the base rods by first and second magnets.
Abstract:
The injection molding employing a mold that includes a molding surface in which a pin hole is formed, and at least one ejector pin that is inserted through the pin hole and that includes an outer peripheral surface facing an inner peripheral surface of the pin hole; includes closing a mold, injecting material into the mold, setting the material, opening the mold, and extruding the material by making a tip end surface of the at least one ejector pin protrude out of a pin hole. The tip end surface is recessed from the molding surface by a predetermined distance in a direction opposite a direction in which the material is extruded, while injecting the material into the mold.
Abstract:
An injection molding machine includes a gas feeding mechanism configured to feed gas to a cavity formed between a first mold plate and a second mold plate in a clamped state; an injection apparatus configured to inject a foamable resin into the cavity having an inside pressure thereof increased to be higher than an atmospheric pressure by the gas feeding mechanism; and a gas releasing mechanism configured to release the gas inside the cavity to an atmosphere through a gap formed between an inner wall surface of a through hole formed through one of the first mold plate and the second mold plate and an outer circumferential surface of a mold member inserted into the through hole, during or after the injection of the foamable resin by the injection apparatus.