Abstract:
A method for forming a receptacle may include providing a mold having a forming surface and a recessed area defining part of the forming surface, the mold having sections that may be separated to open the mold and closed together to close the mold. A molten plastic parison may be provided into the mold when the mold is open, the mold may be closed and the parison may be expanded against the forming surface so that a portion of the parison enters the recessed area. The portion of the parison within the recessed area may be formed by moving a secondary forming feature relative to the mold and parison to define a mount feature.
Abstract:
A method and apparatus for cutting moils from necks of molded plastic containers and installing spouts in the necks are disclosed. The apparatus includes a pick and place mechanism that rotates along an arcuate path transporting the containers between a cutting station, a facing station and an assembly station positioned along the path. An oven located above the assembly station heats spouts which are coated with a hot-melt adhesive. The heated spouts are supplied to the assembly station under gravity feed. The method includes cutting the moils from the container necks at the cutting station, finishing the neck by burnishing and reaming at the facing station, heating the spouts in the oven, orienting the spouts and inserting them into the finished necks of the containers at the assembly station.
Abstract:
A method making a plastic container in accordance with one aspect of the present invention includes molding an intermediate container product having a body and a moil integral with the body. The body is of layered construction that includes at least one layer of barrier resin that extends part-way into but not throughout the moil. The upper portion of the moil, in which the barrier material is absent, is removed for recycling as process regrind. The lower portion of the moil is removed to form the container. In the preferred embodiment of the invention, the upper portion of the moil is removed in a laser trimming operation. The lower portion of the moil is removed in the preferred embodiment of the invention by inserting a plug into the open end or mouth of the container, and employing a cutting tool that is positioned by the plug for accurately trimming of the container product with respect to the mouth of the container. The cutting tool preferably is either a pair of shear rollers or a laser cutting tool.
Abstract:
A dimensionally-stable, injection-molded portion of a blow molded intermediate article is engaged by a conveyance mechanism of a trimmer to controllably drive the intermediate article within the trimmer to permit accurate and high speed severing of the injection molded portion and moil from a blown finish container body. An injection-molded, closed end preform is provided having a neck finish with an internal and/or external peripheral drive surface. The preform is utilized to form an intermediate article including a container body and moil. The injection-molded neck portion of the intermediate article remains substantially unchanged from its as-manufactured preform condition and provides a dimensionally stable surface for use in driving and rotating the intermediate article within the trimmer.
Abstract:
Apparatus for trimming plastic from blow molded one-bottle or two-bottle logs during movement of the logs on log holders moving along a conveyor path extending from an inlet end to an outlet end. The apparatus includes a frame and, connected to the frame, a log conveyor, a punch assembly, and a trim assembly. The punch assembly is located at a first portion of the conveyor path and the trim assembly is located at a different, second portion of the conveyor path. The apparatus trims neck flash and neck rings from logs moving along the path.
Abstract:
An apparatus for reforming an annular end sealing surface of a molded plastic container includes a head having an annular contact surface and a drive for bringing the annular contact surface into contact with the annular end sealing surface of the container. The head and the container do not rotate relative to each other during this contact reforming operation. Heat is applied through the contact surface to the end sealing surface while the surfaces are in contact to raise the temperature at the end sealing surface to at least the softening temperature of the plastic material, so that the end sealing surface is softened and reformed by heat and contact with the contact surface.
Abstract:
A bottle trimming machine and method where blow molded two-bottle logs are fed down an arcuate path during trimming of neck flash and neck rings.
Abstract:
A blow molded container (10) having a trimmed nonround opening (12) is blow molded from a preform (36) and then positioned by a positioner (50) of a nonround trimmer (16) that includes a rotary driven arm assembly (56) having a knife holder (60). A guide (66) guides the knife holder (60) in a nonround path to perform the trimming.
Abstract:
A blow molded container (10) having a trimmed nonround opening (12) is blow molded from a preform (36) and then positioned by a positioner (50) of a nonround trimmer (16) that includes a rotary driven arm assembly (56) having a knife holder (60). A guide (66) guides the knife holder (60) in a nonround path to perform the trimming.
Abstract:
Method and apparatus for trimming a container having an open end wherein the container is held during the trimming operation, including a multi-station assembly for holding the container to be trimmed stationary during trimming, ejecting the trimmed portion and ejecting the trimmed container.