B29C49/6418

BOTTLE PREFORM HEATING APPARATUS

A bottle preform heating apparatus includes a cavity, a top cover and multiple heating lamps. A first receiving cavity and a second receiving cavity are formed in the cavity. The first receiving cavity is cylindrical. The second receiving cavity is connected to a side surface of the first receiving cavity. Each heating lamp includes a lamp tube and a lamp base. The lamp tube includes an arc portion and two connection portions. An end of each connection portion is connected to the lamp base. Another end of the each connection portion is connected to an end of the arc portion. The arc portion is disposed in the first receiving cavity. The two connection portions and the lamp base are disposed in the second receiving cavity. The top cover is disposed on top of the cavity. The top cover is provided with a first through hole.

Method and device for tempering preforms

A method for tempering preforms in a blowing machine, wherein at least one heating box is arranged along a transport path for the preforms. The heating box has reflective walls and forms a heating channel through which the preforms are guided. The heating box also has a heater for heating the preforms in the heating channel, and a cooling device, having a blower, for cooling the reflective walls. The walls are cooled by a quantity of air flowing along the walls outside the heating channel. The heating output of the heater is adjustable. A control device provides open-loop and closed-loop control of the cooling output produced by the cooling device, in particular the supplied quantity of air, depending on the respective heating output of the heater, depending on a measurement of the heating output.

Method for angular indexing of a preform

A process for angular indexing of a pre-form having a body and a neck. The process includes a step of marking the neck of the pre-form which consists of production of at least one reference point on the neck of the pre-form. The process also includes a step of a heating station taking charge of the pre-form, during which the pre-form is transported along a heating course by a support unit, known as a spinner, which makes it possible to turn the pre-form around its axis, and during which the body of the pre-form is heated. The marking step is carried out during the step of taking charge, when the pre-form, supported by a spinner, travels along the heating course.

Heat device and method for the thermal conditioning of preforms provided for blow moulding

A heating device for the thermal conditioning of preforms made of a thermoplastic material at a temperature profile that is suitable for a blow molding, and a blow molding machine having such a heating device. The heating device includes a plurality of heating units arranged one behind another along a heating section. The preforms are transported on a transport path along the heating section and along the heating units. The heating section includes a first heating section portion provided with first heating units for the uniform heating of the preforms in their peripheral direction, and a second heating section portion provided with second heating units for the non-uniform heating of the preforms in their peripheral direction. A method for the thermal conditioning of preforms is also disclosed.

Apparatus and method for producing plastic containers with non-circular cross-sections

Apparatus for producing plastic containers has a heating device having a transport device for transporting the plastic preforms singly along a predefined transport path. The transport device has a plurality of holding devices for holding the plastic preforms, and at least one heating unit for heating the plastic preforms, wherein furthermore a rotating device is provided which rotates the plastic preforms held by the holding devices and is connected to a forming device, which transforms the plastic preforms transported by the heating device into plastic containers. The apparatus has an alignment device which enables alignment of the rotational position of the plastic preforms with respect to their longitudinal direction relative to the holding devices holding these plastic preforms and/or the apparatus has a rotational position alignment device arranged along the transport path which enables alignment of a rotational position of the holding devices with the plastic preforms arranged thereon.

APPARATUS FOR HEATING PREFORMS MADE OF THERMOPLASTIC MATERIAL

An apparatus for heating preforms made of thermoplastic material includes a conveyance device for preforms having a longitudinal axis of extension intended to move the preforms along a predefined path. The apparatus further includes a heating component arranged along at least one portion of the predefined path. The heating component includes at least one heating element and at least one front reflective element, which are mutually opposite with respect to the predefined path in order to form between them a transit tunnel for the preforms. The heating element includes IR (Infra-Red) and/or NIR (Near-Infra-Red) lamps. The front reflective element includes at least one contoured plate-like body in order to form, in the direction of extension of the predefined path, an alternation of closer portions and spaced portions with respect to the predefined path that is extended substantially parallel to the axes of extension of the preforms.

Method for thermally conditioning preforms

Provided is a thermal conditioning method of preforms. The method includes heating each preform by transport along a heating path exposed to heating radiation with a determined production rate; transporting the preforms (in line along a diffusion path; transforming the preforms in forming units at the determined production rate. The diffusion path includes a final buffer section along which the preforms travel for an adjustable duration.

APPARATUS AND METHOD FOR PRODUCING CONTAINERS
20240083095 · 2024-03-14 ·

The disclosure relates to the production of containers comprising: a heating device for preforms of the containers, the heating effect of which is adjustable, a forming device such as a stretch blow-molding device for forming the preforms into containers, a measuring device which is designed to perform a transmission measurement for light, such as infrared light, which passes through the container, a closed-loop control which is designed to process the result of the transmission measurement and a target value of the transmission measurement and, based upon the result of the transmission measurement and the target value, to adjust the heating effect of the heating device and/or one or more adjustable parameters of the forming device. The disclosure further relates to a corresponding method.

Detecting lost plastic preforms in the heating module by multiple heating lamp failure detection

Disclosed is an apparatus for heating plastic preforms, having a transport device which transports the plastic preforms along a predetermined transport path, the transport device having a circulating transport and a plurality of holding devices for holding the plastic preforms, having a plurality of heating devices which are arranged stationarily along the transport path, in such a way that the plastic preforms transported along the transport path are heated by these heating devices, the heating devices each having a plurality of heating lamps, and the apparatus having a detection device which is configured to detect a failure of the heating lamps, wherein the apparatus has a control device which is configured to control the apparatus in dependence on a number of heating lamps detected having failed.

METHOD FOR PRODUCING MOLDED BODY CONTAINING POLY-3-HYDROXYBUTYRATE-BASED RESIN, AND USE OF SAME

It is an object of the present invention to provide a novel production method which makes it possible to obtain a molded product containing a P3HB-based resin through an injection blow molding method and a technique for using such a method. The object is achieved by providing a method for producing a molded product containing a P3HB-based resin, the method including the steps of: (A) plasticizing a resin composition containing a P3HB-based resin; (B) subjecting the plasticized resin composition obtained in the step (A) to injection molding to obtain a preform; and (C) subjecting the preform obtained in the step (B) to blow molding to obtain a molded product.