B29C49/6835

Method for the production of filled containers from thermally conditioned preforms
11707877 · 2023-07-25 · ·

A method for producing containers filled with liquid content from preforms made of thermoplastic material. The liquid content is fed as a pressure medium into thermally conditioned preforms during a forming and filling phase in a mold of one of a plurality of forming stations arranged circumferentially spaced apart on a common, continuously rotationally driven working wheel. A compensating device compensates for thermal consequences of centrifugal force acting on the liquid content fed into the preform during the forming and filling phase. The compensating device imparts a temperature profile to the preform in a circumferential direction, which is not point-symmetrical in relation to a longitudinal axis of the preform to produce a thermally differentiated partial circumferential region. The preform is inserted into the mold such that the thermally differentiated partial circumferential region faces in a radial direction of the working wheel.

METHOD FOR THE PRODUCTION OF FILLED CONTAINERS FROM THERMALLY CONDITIONED PREFORMS
20220339850 · 2022-10-27 ·

A method for producing containers filled with liquid content from preforms made of thermoplastic material. The liquid content is fed as a pressure medium into thermally conditioned preforms during a forming and filling phase in a mold of one of a plurality of forming stations arranged circumferentially spaced apart on a common, continuously rotationally driven working wheel. A compensating device compensates for thermal consequences of centrifugal force acting on the liquid content fed into the preform during the forming and filling phase. The compensating device imparts a temperature profile to the preform in a circumferential direction, which is not point-symmetrical in relation to a longitudinal axis of the preform to produce a thermally differentiated partial circumferential region. The preform is inserted into the mold such that the thermally differentiated partial circumferential region faces in a radial direction of the working wheel.

System for and method of heating objects in a production line

A system and method (10) for heating objects (O) during a thermal treatment process in a production line (P) is described. The system (10) comprises a transport system (11), a minor arrangement (201, 202, 203, 204, 205, 206) comprising a first mirror surface (21, 21′, 21″) and a second minor surface (22, 22′, 22″) arranged at opposite sides, so that the objects (O) may be transported between the minor surfaces (21, 22, 21′, 22′, 21″, 22″) along the production line and a radiation device (30) comprising a number of lasers for generating light (L). The radiation device (30) and the mirror arrangement (201, 202, 203, 204, 205, 206) are constructed such that the main direction (R) of light (L) that enters the mirror arrangement (201, 202, 203, 204, 205, 206) is directed towards the first mirror surface (21, 21′, 21″) at an angle to the production line (P), and the light (L) subsequently undergoes multiple reflections between the mirror surfaces (21, 22, 21′, 22′, 21″, 22″) so that a series of multiple reflections of the light (L) travels in the transport direction (OT) along at least a section of the minor surface (21, 22, 21′, 22′, 21″, 22″) or travels against the transport direction (OT) along at least a section of the minor surface (21, 22, 21′, 22′, 21″, 22″) and heats the objects (O) being transported between the minor surfaces (21, 22, 21′, 22′, 21″, 22″).

Preform heating device
11426921 · 2022-08-30 · ·

Described herein is a preform heating device, in particular a heating device which uses monochromatic infrared radiation preferably generated by lasers. In particular, a heating device for preforms is configured so as to be positioned outside a preform and radiate an electromagnetic radiation in the infrared range, forming a radiation disk in such a device according to a radial symmetry with respect to the center of the preform axis.

APPARATUS AND METHOD FOR HEATING PLASTIC PREFORMS WITH ADJUSTABLE FOCUSING DEVICE
20210402649 · 2021-12-30 ·

Provided is an apparatus for heating plastic preforms with a transport device which is suitable and intended for transporting the plastic preforms along a predetermined transport path, with at least one stationary arrange heating device which heats the plastic preforms transported along the transport path, wherein the heating device has at least one heating element which emits radiation which heats the plastic preforms and at least one focusing device which focuses the radiation emitted by the heating element onto predetermined regions of the plastic preforms to be heated, wherein a position of this focusing device is changeable.

TEMPERATURE CONTROL DEVICE AND CONTAINER PRODUCTION MACHINE

A temperature adjustment device (2) for thermally conditioning preforms (10) made of a thermoplastic material for subsequent molding including a transport device based on the rotary principle for transporting the preforms along a transport path that has at least one section with two adjacent transport lanes (32, 34) for transporting the preforms in two adjacent rows. Heating elements (36) are arranged between the transport lanes for heating the preforms. Each heating element acts on preforms in both transport lanes. At least one compensation device (22, 22′, 23, 24) for compensating for temperature differences between the preforms is assigned to the two transport lanes, which exclusively or more strongly acts on preforms in one of the two transport lanes for adjusting their temperature. Also, a container manufacturing machine (1) for manufacturing containers (12) from preforms that includes a temperature adjustment device.

Temperature control device and container production machine

A temperature adjustment device (2) for thermally conditioning preforms (10) made of a thermoplastic material for subsequent molding including a transport device based on the rotary principle for transporting the preforms along a transport path that has at least one section with two adjacent transport lanes (32, 34) for transporting the preforms in two adjacent rows. Heating elements (36) are arranged between the transport lanes for heating the preforms. Each heating element acts on preforms in both transport lanes. At least one compensation device (22, 22′, 23, 24) for compensating for temperature differences between the preforms is assigned to the two transport lanes, which exclusively or more strongly acts on preforms in one of the two transport lanes for adjusting their temperature. Also, a container manufacturing machine (1) for manufacturing containers (12) from preforms that includes a temperature adjustment device.

Preform heating system
11440238 · 2022-09-13 · ·

The present invention relates to a heating system for preforms upstream of a blowing or stretch-blowing machine, in particular a heating system using monochromatic infrared radiation, preferably laser-generated. In particular, the invention relates to a heating system (301) for preforms (P), comprising a carousel for treating the preforms (P) comprising a plurality of heating elements (304) configured to be inserted either inside or outside each preform (P) and to radiate electromagnetic radiation in the infrared field which forms, in such a device, a disc of radiation according to a radial symmetry which departs from the center of the axis of the preform and which appropriately converges and diverges.

PREFORM HEATING DEVICE
20210229338 · 2021-07-29 ·

Described herein is a preform heating device, in particular a heating device which uses monochromatic infrared radiation preferably generated by lasers.

In particular, a heating device for preforms is configured so as to be positioned outside a preform and radiate an electromagnetic radiation in the infrared range, forming a radiation disk in such a device according to a radial symmetry with respect to the center of the preform axis.

Method for manufacturing packaging comprising a container printed on directly and treated by plasma
10994467 · 2021-05-04 ·

Disclosed is a method for manufacturing packaging including a container. The method includes: an operation of forming the container via blow molding or stretch blow molding from a plastics preform, an operation of treating an inner surface of the container, during which a thin barrier layer is formed on the inner surface via plasma-enhanced chemical vapor deposition; an operation of printing on an outer surface of the container, during which ink is deposited on the outer surface to form a decorative and/or informative inscription thereon.