摘要:
A method of injection moulding a catheter assembly, the method comprising providing a mould having an elongated cavity in the form of an external surface of the catheter assembly, providing a core pin in the longitudinal axis of the catheter assembly inside the cavity in the form of an inner lumen of the catheter assembly, where the core pin has a distal end that is fixed in place and a proximal free end, providing a first and a second moulding member where each one of the first and the second moulding members has a fixed end and a free end, in a radial direction of the elongated cavity, preparing the mould by arranging the free ends of the two moulding members to support the core pin, injecting a liquid catheter material into the mould, letting the liquid material solidify.
摘要:
A mold for molding optical fiber connector includes a core pin, a cavity mold and a sprue hole defined on the sidewall of the cavity mold. The core pin is used to mold the blind hole of the optical fiber connector. The cavity mold and the core mold cooperatively define a molding cavity for forming the optical fiber connector. A support block is configured in the molding cavity. The molding cavity includes a lens forming portion used to mold the lens and the support block configures a cutout to support the blind hole forming portion to make the blind hole forming portion align with the lens forming portion during the molding process, the opening of the cutout is towards the sprue hole.
摘要:
A molded article transfer device (150, 250) is described herein that is associated, in use, with an injection mold (100, 200). The molded article transfer device (150, 250) includes a transfer structure (151, 251) that defines, amongst other things, a first aperture (154A) that is structured to receive a first molded article (102A) from a first mold stack (106A, 206A) of the injection mold (100). The transfer structure (151, 251) also defines a first branch channel (156A) and a first trunk channel (158A) through which the first molded article (102A) is passable. The first branch channel (156A) connects the first aperture (154A) with the first trunk channel (158A) for passing, in use, the first molded article (102A) thereto, whereafter it passes through the first trunk channel (158A) towards an exit (164A) thereof.
摘要:
A mold for molding optical fiber connector includes a core pin, a core mold and a cavity mold. The core pin has insertion portion and a blind hole forming portion. The core mold defines a hole for receiving the insertion portion. The cavity mold attaches to the core mold and cooperatively defines a molding cavity for forming the optical fiber connector. The cavity mold includes a lens forming portion and a support block in the molding cavity. The core pin aligns with the lens forming portion and the blind hole forming portion thereof is exposed in the molding cavity. The support block is configured for holding the blind hole forming portion and maintaining alignment between the core pin and the lens forming portion.
摘要:
A laboratory test tube is formed between male and female mold elements by injection of molten plastic material. The female element has a bottom element formed by first and second alternating complementarily shaped wedges. At least the second wedges are able to move under the pressure of the molten plastic from a rest position to an operative position in order to form slits which allow air, but not molten plastic, to exit from the mold.
摘要:
The invention is directed to a method for manufacturing a thin-wall, single-piece optical obturator having an integral tip and shaft. The invention includes providing an injection mold defining a mold cavity having a core pin positioned within the mold cavity. The mold includes at least one gate and multiple core support pins between the core pin and the mold cavity walls, with at least one primary core support pin positioned on a side opposite the at least one gate. The method also includes injecting a transparent molten polymeric material having high flow properties into the injection mold such that the polymeric material flows between the surface of the mold cavity and the core pin. The core support pins substantially prevent the core pin from shifting while the polymeric material is injected into the mold. The high-flow nature of the polymeric material allows for complete filling of the mold cavity.
摘要:
The invention relates to a mould for injecting tubes having slim walls made of a plastic material. The mould, destined to make tubes having an outlet mouth for a product and a lateral wall delimiting the space destined to contain the product to be packed, comprises an upper punch and a lower punch which are inserted in an external body or matrix of the mould to define the space to be filled with the injected plastic material; the upper punch comprises a projection which occupies the internal part of the outlet mouth and extends below the lower end of the mouth; the lower punch comprises a cavity internally of which the projection is inserted; injection channels are afforded between the projection and the cavity, which channels flow into a single injection manifold are reach inlet points to a space of the mould destined to receive the injected material.
摘要:
There is disclosed a mold insert stack for use in an injection mold and a coupler thereof. The mold insert stack for use in an injection mold is provided and comprises a core assembly that includes: a core insert that includes: a core body; an inner molding surface that is defined on the core body, the inner molding surface provides, in use, an inner portion of a molding cavity that is shaped to mold a preform; a core-coupler interface that is defined on the core body; a support member that includes: a support body; a support-sliding interface that is defined on the support body; a coupler member that includes: a coupler body; a coupler-core interface that is defined on the coupler body; a coupler-insert interface that is defined on the coupler body; and a complementary sliding interface that is defined on at least one of the coupler body and the core body; the coupler-core interface and the core-coupler interface being configured to cooperate, in use, to mutually locate the coupler body with the core body; the coupler-insert interface being configured to cooperate, in use, with a complementary interface defined on a further mold insert; the support-sliding interface and the complementary sliding interface being configured to cooperate, in use, to establish a slidable coupling that is able to accommodate, in use, a lateral move (S1) between the support-sliding interface and the complementary sliding interface and connect a load path between the support body with at least one of the core body with the coupler body.
摘要:
Moulding apparatus comprises a mould (12) defining a blow mould cavity (14) and a core (18) which projects into the blow mould cavity. The mould has at least one mould member (22, 24, 26) movable to an extended position in which it defines together with the core (18) at least part of a preform moulding cavity (28) for moulding a preform. The at least one mould member (22, 24, 26) can be moved to a retracted position [FIG. 2] whereby a preform produced in the preform moulding cavity can be expanded into the blow mould cavity. The moulding apparatus includes a locking member (22) adapted to engage the core so as to resist lateral movement of the core whilst material is introduced into the preform moulding cavity. A method of using the apparatus is also disclosed and claimed.
摘要:
According to embodiments of the present invention, there are provided a mold stack, a molding system incorporating same and a method of aligning the mold stack. For example, a mold stack is provided. The mold stack comprises a first molding cavity defining component, a second molding cavity defining component and a third molding cavity defining component, with the second molding cavity defining component being located, in use, in-between the first molding cavity defining component and the third molding cavity defining component. At least one of the first molding cavity defining component and the third molding cavity defining component is associated with a respective compensator, the respective compensator configured to allow the at least one of the first molding cavity defining component and the third molding cavity defining component to align itself relative to the second molding cavity defining component.