A mold structure and the replacement method thereof. The mold structure has a lower molding plate, at least one lower die core, a plurality of lower supporters, a plurality of first positioning units, an upper molding plate, at least one upper die core, a plurality of upper supporters and a plurality of merging units. The upper die core and the lower die core are passed through by a plurality of fasteners, and fixed on the upper molding plate and the lower molding plate respectively. The upper supporters and the lower supporters are disposed around the upper die core and the lower die core respectively, and passed through by a plurality of fasteners to fix them on the upper molding plate and the lower molding plate respectively. A part of a first positioning unit protruding out of a lower supporter is inserted into a merging unit. The present invention provides an accurate way to fix die cores, improves procedures in conventional molding, further reduces process time and saves cost.

A mold structure and the replacement method thereof. The mold structure has a lower molding plate, at least one lower die core, a plurality of lower supporters, a plurality of first positioning units, an upper molding plate, at least one upper die core, a plurality of upper supporters and a plurality of merging units. The upper die core and the lower die core are passed through by a plurality of fasteners, and fixed on the upper molding plate and the lower molding plate respectively. The upper supporters and the lower supporters are disposed around the upper die core and the lower die core respectively, and passed through by a plurality of fasteners to fix them on the upper molding plate and the lower molding plate respectively. A part of a first positioning unit protruding out of a lower supporter is inserted into a merging unit. The present invention provides an accurate way to fix die cores, improves procedures in conventional molding, further reduces process time and saves cost.

A microneedle including a projection having a through hole formed in the projection in a direction that the projection extends, and a tubular member having an end surface configured to support the projection when the end surface is pressed against a skin and a fluid is supplied through the through hole of the projection to the skin. The projection has a length H along the direction that the projection extends and the supporting surface has an area S such that a ratio of S/H is in a range of from 2.1 to 10.5.

The invention relates to a method for producing a hollow injection-moulded part, in particular a primary packaging means for medical applications by an injection moulding method, comprising the following method steps: a) Providing a first female die tool having a first mould cavity and a mould core formed as a male die tool; b) Introducing a mould core into the first mould cavity so that a first cavity is formed and the mould core extends beyond the mould cavity in the axial direction (X), thereby bringing the mould core into operative contact with the first female die tool and/or with a receiving member; c) Injecting a first plastic material into the first cavity so that a first portion of the injection-moulded part is formed; d) Transferring the first portion of the injection-moulded part to a second cavity; e) Injecting a second plastic material into the second cavity so that a second portion is formed directly on the first portion of the injection-moulded part.

The invention relates to a method for producing a hollow injection-moulded part, in particular a primary packaging means for medical applications by an injection moulding method, comprising the following method steps: a) Providing a first female die tool having a first mould cavity and a mould core formed as a male die tool; b) Introducing a mould core into the first mould cavity so that a first cavity is formed and the mould core extends beyond the mould cavity in the axial direction (X), thereby bringing the mould core into operative contact with the first female die tool and/or with a receiving member; c) Injecting a first plastic material into the first cavity so that a first portion of the injection-moulded part is formed; d) Transferring the first portion of the injection-moulded part to a second cavity; e) Injecting a second plastic material into the second cavity so that a second portion is formed directly on the first portion of the injection-moulded part.

There is provided a blow molding device, in which the blow molding device includes an injection molding part injection-molding a preform having a main body portion, a temperature adjustment part adjusting a temperature of the preform, and a blow molding part blow-molding the preform, and the temperature adjustment part includes a conditioning core mold that is in contact with an inner surface of the main body portion and a conditioning cavity mold that is in contact with an outer surface of the main body portion, and compresses and deforms the main body portion of the preform into a desired shape with the main body portion sandwiched between the conditioning core mold and the conditioning cavity mold.

A cavity plate assembly (400) for a preform mold (100), which includes a cavity plate (410) having an array of seats (412) and a corresponding array of cavity inserts (440) mounted to a front face (CVF) of the cavity plate (410) and in communication with a respective seat (412). Each cavity insert (440) includes a body (441) with a mounting face (441a) and a spigot (443) projecting from the mounting face (441a) and received in a respective seat (412) of the cavity plate (410) such that the mounting (441a) face abuts the front face (CVF) of the cavity plate (410). Each cavity insert (440) also includes a molding surface (448) along its length, at least two thirds of which extends beyond the cavity plate (410).

A cavity plate assembly (400) for a preform mold (100), which includes a cavity plate (410) having an array of seats (412) and a corresponding array of cavity inserts (440) mounted to a front face (CVF) of the cavity plate (410) and in communication with a respective seat (412). Each cavity insert (440) includes a body (441) with a mounting face (441a) and a spigot (443) projecting from the mounting face (441a) and received in a respective seat (412) of the cavity plate (410) such that the mounting (441a) face abuts the front face (CVF) of the cavity plate (410). Each cavity insert (440) also includes a molding surface (448) along its length, at least two thirds of which extends beyond the cavity plate (410).

An apparatus for making a foam material body has a mold comprising at least two mold halves fittable together to form separate first and second mold cavities; a first sprue opening into the first mold cavity, and a second sprue opening into the second mold cavity. The mold parts can be moved between an open and a closed position. Foam can be injected into the first and second mold cavities through the respective sprues. A passage, for example, connects the sprue with the mold cavity. The first mold cavity and the second mold cavity are partitioned from one another in the closed position of the mold.

An apparatus for making a foam material body has a mold comprising at least two mold halves fittable together to form separate first and second mold cavities; a first sprue opening into the first mold cavity, and a second sprue opening into the second mold cavity. The mold parts can be moved between an open and a closed position. Foam can be injected into the first and second mold cavities through the respective sprues. A passage, for example, connects the sprue with the mold cavity. The first mold cavity and the second mold cavity are partitioned from one another in the closed position of the mold.