B29K2067/003

Method and apparatus for blow moulding containers with movable bottom part

A method for forming plastic preforms into plastic bottles has a first and a second operating mode, wherein the respective operating modes being selectively chosen by an operator as required. In in the first operating mode, i.e. a quality mode, a connection is established between a valve block and a pressure reservoir of the second pressure level in only one direction, from a valve block towards the pressure reservoir, i.e. a compressed air recycling mode, and in a second operating mode, i.e. an efficiency approach, a connection is established between the valve block and the pressure reservoir of the second pressure level in both directions, i.e. from the valve block towards the pressure reservoir and from the pressure reservoir towards the valve block.

Two step blow molding unit, apparatus and method

One purpose of the present invention is to provide a mold unit which is capable of achieving improvements in both energy efficiency and heat resistance performance; a blow molding apparatus; and a blow molding method. The present invention is provided with: a first mold part for performing a first step in which a preform is subjected to heat-set blowing at a first temperature; and a second metal mold part for performing a second step in which an intermediate molded body blow molded as a result of the heat-set blowing is blow molded at a second temperature lower than the first temperature, to produce a container. The first mold part and the second mold part are disposed adjacently to each other.

Polyethylene terephthalate coloring systems and methods
11473216 · 2022-10-18 · ·

Systems for manufacturing bulked continuous filament having tonal coloring from PET comprise, in various embodiments: (1) an extruder; (2) a static mixing assembly coupled to the extruder comprising: (a) a housing, and (b) one or more individual static mixing elements disposed within the housing; (3) a plurality of colorant ports along a length of the static mixing assembly such that each of the plurality of colorant ports is configured to provide colorant to a polymer stream at a different location along the length of the static mixing assembly; and (4) one or more spinning machines positioned downstream of the static mixing assembly and coupled to the static mixing assembly to receive the colored polymer stream. The spinning machine(s) may be configured to form the colored polymer stream into bulked continuous carpet filament having a tonal color effect.

Strapping apparatus
11597547 · 2023-03-07 · ·

A strapping apparatus for strapping articles with a strapping band having a base plate provided for arranging on an article, a tensioning device with which a band tension can be applied to the strapping band, and a sealing device for permanently connecting two band layers to each other.

Strapping apparatus
11597547 · 2023-03-07 · ·

A strapping apparatus for strapping articles with a strapping band having a base plate provided for arranging on an article, a tensioning device with which a band tension can be applied to the strapping band, and a sealing device for permanently connecting two band layers to each other.

Blow molder control systems and methods

Systems and methods control the operation of a blow molder. An indication of a crystallinity of at least one container produced by the blow molder may be received along with a material distribution of the at least one container. A model may be executed, where the model relates a plurality of blow molder input parameters to the indication of crystallinity and the material distribution and where a result of the model comprises changes to at least one of the plurality of blow molder input parameters to move the material distribution towards a baseline material distribution and the crystallinity towards a baseline crystallinity. The changes to the at least one of the plurality of blow molder input parameters may be implemented.

Method for manufacturing a polyester based polymer article
11633887 · 2023-04-25 · ·

A method of the selection, modification of existing, and/or creation of polyester based polymer materials, which provide improved response to the application of local shear and/or extensional deformation inside the polyester based polymer melt in injection stretch blow molding, is disclosed. A method for manufacturing a polymer article is also provided including injecting a molten polyester based polymer in a preform mold for converting it in a preform while applying shear and/or extensional deformation on the polyester based polymer melt. Applying shear and/or extensional deformation on the polyester based polymer melt includes modifying the flow path of the molten polymer as a function of local pressure profile over at least part of the flow path. The local pressure profile is determined as a function of optimized response of the polyester based polymer melt to the applied local shear and/or extensional deformation over at least said part of the flow path.

Integrated fluid module and test device

An integrated testing device and fluid module are disclosed, as well as a method of manufacture. Fluid module contains a reservoir containing a test fluid, and a control vessel. The reservoir discharges test fluid into the control vessel, which discharges the test fluid in a controlled way to a test component.

Integrated fluid module and test device

An integrated testing device and fluid module are disclosed, as well as a method of manufacture. Fluid module contains a reservoir containing a test fluid, and a control vessel. The reservoir discharges test fluid into the control vessel, which discharges the test fluid in a controlled way to a test component.

Seal pin flow rate method and system
11597134 · 2023-03-07 · ·

A method for forming and filling a container. The method includes: determining an effective fill area of an opening of the container through which fluid can pass while a stretch rod is seated within the opening; actuating a seal pin to open a nozzle passage of the nozzle to allow the fluid to flow through the nozzle passage and through the opening to simultaneously form and fill the container; detecting a degree to which the nozzle passage is open; increasing fill velocity of the fluid to the nozzle as the nozzle passage is opened; setting fill velocity of the fluid to a maximum fill velocity when the nozzle passage is opened such that an area of the nozzle passage is at least equal to the effective fill area at the opening of the finish; and closing the seal pin after the container is formed and filled.